From 68044c83c74a1dfcfce02ff867424f50bc9b14e5 Mon Sep 17 00:00:00 2001 From: Matthias Maier Date: Wed, 21 Feb 2024 00:54:46 -0600 Subject: [PATCH] Update copyright years --- bundled/CMakeLists.txt | 2 +- cmake/checks/check_01_cxx_features.cmake | 2 +- cmake/configure/configure_20_trilinos.cmake | 2 +- cmake/configure/configure_50_arborx.cmake | 2 +- cmake/configure/configure_50_complex_values.cmake | 2 +- cmake/macros/macro_deal_ii_add_test.cmake | 2 +- cmake/macros/macro_deal_ii_invoke_autopilot.cmake | 2 +- cmake/macros/macro_deal_ii_pickup_tests.cmake | 2 +- cmake/macros/macro_process_feature.cmake | 2 +- cmake/modules/FindDEAL_II_KOKKOS.cmake | 2 +- cmake/setup_cached_variables.cmake | 2 +- cmake/setup_compiler_flags.cmake | 2 +- cmake/setup_compiler_flags_gnu.cmake | 2 +- cmake/setup_write_config.cmake | 2 +- contrib/python-bindings/include/mapping_wrapper.h | 2 +- contrib/python-bindings/include/tria_accessor_wrapper.h | 2 +- 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+- tests/trilinos_tpetra/13.cc | 2 +- tests/trilinos_tpetra/14.cc | 2 +- tests/trilinos_tpetra/15.cc | 2 +- tests/trilinos_tpetra/16.cc | 2 +- tests/trilinos_tpetra/17.cc | 2 +- tests/trilinos_tpetra/18.cc | 2 +- tests/trilinos_tpetra/19.cc | 2 +- tests/trilinos_tpetra/20.cc | 2 +- tests/trilinos_tpetra/21.cc | 2 +- tests/trilinos_tpetra/22.cc | 2 +- tests/trilinos_tpetra/23.cc | 2 +- tests/trilinos_tpetra/24.cc | 2 +- tests/trilinos_tpetra/27.cc | 2 +- tests/trilinos_tpetra/28.cc | 2 +- tests/trilinos_tpetra/29.cc | 2 +- tests/trilinos_tpetra/30.cc | 2 +- tests/trilinos_tpetra/31.cc | 2 +- tests/trilinos_tpetra/32.cc | 2 +- tests/trilinos_tpetra/34.cc | 2 +- tests/trilinos_tpetra/35.cc | 2 +- tests/trilinos_tpetra/36.cc | 2 +- tests/trilinos_tpetra/37.cc | 2 +- tests/trilinos_tpetra/39.cc | 2 +- tests/trilinos_tpetra/40.cc | 2 +- tests/trilinos_tpetra/42.cc | 2 +- tests/trilinos_tpetra/45.cc | 2 +- tests/trilinos_tpetra/46.cc | 2 +- tests/trilinos_tpetra/51.cc | 2 +- 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tests/trilinos_tpetra/sparse_matrix_vector_05.cc | 2 +- tests/trilinos_tpetra/sparse_matrix_vector_06.cc | 2 +- tests/trilinos_tpetra/sparse_matrix_vector_07.cc | 2 +- tests/trilinos_tpetra/sparse_matrix_vector_14.cc | 2 +- tests/trilinos_tpetra/sparse_matrix_vector_15.cc | 2 +- tests/trilinos_tpetra/sparsity_pattern_01.cc | 2 +- tests/trilinos_tpetra/sparsity_pattern_02.cc | 2 +- tests/trilinos_tpetra/sparsity_pattern_03.cc | 2 +- tests/trilinos_tpetra/sparsity_pattern_common.h | 2 +- tests/trilinos_tpetra/tpetra_vector_01.cc | 2 +- tests/trilinos_tpetra/tpetra_vector_02.cc | 2 +- tests/trilinos_tpetra/tpetra_vector_03.cc | 2 +- tests/trilinos_tpetra/vector_reference_01.cc | 2 +- tests/trilinos_tpetra/vector_reinit.cc | 2 +- tests/trilinos_tpetra/vector_swap_01.cc | 2 +- tests/umfpack/umfpack_04.cc | 2 +- tests/vector/complex_vector_11.cc | 2 +- tests/vector/complex_vector_12.cc | 2 +- tests/vector/complex_vector_13.cc | 2 +- tests/vector/complex_vector_14.cc | 2 +- tests/vector/complex_vector_15.cc | 2 +- tests/vector/complex_vector_16.cc | 2 +- tests/vector/complex_vector_17.cc | 2 +- tests/vector/complex_vector_18.cc | 2 +- tests/vector/complex_vector_19.cc | 2 +- tests/vector/complex_vector_20.cc | 2 +- tests/vector/complex_vector_21.cc | 2 +- tests/vector/complex_vector_21_negative.cc | 2 +- tests/vector/complex_vector_22.cc | 2 +- tests/vector/complex_vector_23.cc | 2 +- tests/vector/complex_vector_24.cc | 2 +- tests/vector/complex_vector_25.cc | 2 +- tests/vector/complex_vector_26.cc | 2 +- tests/vector/complex_vector_27.cc | 2 +- tests/vector/complex_vector_28.cc | 2 +- tests/vector/complex_vector_29.cc | 2 +- tests/vector/complex_vector_30.cc | 2 +- tests/vector/complex_vector_31.cc | 2 +- tests/vector/complex_vector_32.cc | 2 +- tests/vector/complex_vector_33.cc | 2 +- tests/vector/complex_vector_34.cc | 2 +- tests/vector/complex_vector_35.cc | 2 +- tests/vector/complex_vector_36.cc | 2 +- tests/vector/complex_vector_37.cc | 2 +- tests/vector/complex_vector_39.cc | 2 +- tests/vector/complex_vector_40.cc | 2 +- tests/vector/complex_vector_41.cc | 2 +- tests/vector/complex_vector_42.cc | 2 +- tests/vector/complex_vector_45.cc | 2 +- tests/vector/complex_vector_46.cc | 2 +- tests/vector/complex_vector_49.cc | 2 +- tests/vector/complex_vector_equality_1.cc | 2 +- tests/vector/complex_vector_equality_2.cc | 2 +- tests/vector/complex_vector_equality_3.cc | 2 +- tests/vector/complex_vector_equality_4.cc | 2 +- tests/vector/complex_vector_equality_5.cc | 2 +- tests/vector/complex_vector_equality_6.cc | 2 +- tests/vector/complex_vector_equality_7.cc | 2 +- tests/vector/complex_vector_equality_8.cc | 2 +- tests/vector/complex_vector_vector_01.cc | 2 +- tests/vector/vector_11.cc | 2 +- tests/vector/vector_12.cc | 2 +- tests/vector/vector_13.cc | 2 +- tests/vector/vector_14.cc | 2 +- tests/vector/vector_15.cc | 2 +- tests/vector/vector_16.cc | 2 +- tests/vector/vector_17.cc | 2 +- tests/vector/vector_18.cc | 2 +- tests/vector/vector_19.cc | 2 +- tests/vector/vector_20.cc | 2 +- tests/vector/vector_21.cc | 2 +- tests/vector/vector_21_negative.cc | 2 +- tests/vector/vector_22.cc | 2 +- tests/vector/vector_23.cc | 2 +- tests/vector/vector_24.cc | 2 +- tests/vector/vector_26.cc | 2 +- tests/vector/vector_27.cc | 2 +- tests/vector/vector_28.cc | 2 +- tests/vector/vector_29.cc | 2 +- tests/vector/vector_30.cc | 2 +- tests/vector/vector_31.cc | 2 +- tests/vector/vector_32.cc | 2 +- tests/vector/vector_33.cc | 2 +- tests/vector/vector_34.cc | 2 +- tests/vector/vector_35.cc | 2 +- tests/vector/vector_36.cc | 2 +- tests/vector/vector_37.cc | 2 +- tests/vector/vector_39.cc | 2 +- tests/vector/vector_40.cc | 2 +- tests/vector/vector_41.cc | 2 +- tests/vector/vector_42.cc | 2 +- tests/vector/vector_45.cc | 2 +- tests/vector/vector_46.cc | 2 +- tests/vector/vector_49.cc | 2 +- tests/vector/vector_57.cc | 2 +- tests/vector/vector_equality_1.cc | 2 +- tests/vector/vector_equality_2.cc | 2 +- tests/vector/vector_equality_3.cc | 2 +- tests/vector/vector_equality_4.cc | 2 +- tests/vector/vector_equality_5.cc | 2 +- tests/vector/vector_equality_6.cc | 2 +- tests/vector/vector_equality_7.cc | 2 +- tests/vector/vector_equality_8.cc | 2 +- tests/vector/vector_vector_01.cc | 2 +- tests/vector_tools/boundaries.cc | 2 +- tests/vector_tools/boundaries_complex.cc | 2 +- tests/vector_tools/boundaries_complex_hp.cc | 2 +- tests/vector_tools/integrate_difference_03.cc | 2 +- tests/vector_tools/integrate_difference_04.cc | 2 +- tests/vector_tools/integrate_difference_04_hp.cc | 2 +- tests/vector_tools/integrate_difference_04_hp_02.cc | 2 +- tests/vector_tools/integrate_difference_05.cc | 2 +- tests/vector_tools/interpolate.cc | 2 +- 2991 files changed, 2992 insertions(+), 2992 deletions(-) diff --git a/bundled/CMakeLists.txt b/bundled/CMakeLists.txt index bacbe1d248..975771964a 100644 --- a/bundled/CMakeLists.txt +++ b/bundled/CMakeLists.txt @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2012 - 2023 by the deal.II authors +## Copyright (C) 2012 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/checks/check_01_cxx_features.cmake b/cmake/checks/check_01_cxx_features.cmake index 22791a41ee..ce03176f38 100644 --- a/cmake/checks/check_01_cxx_features.cmake +++ b/cmake/checks/check_01_cxx_features.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2012 - 2023 by the deal.II authors +## Copyright (C) 2012 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/configure/configure_20_trilinos.cmake b/cmake/configure/configure_20_trilinos.cmake index b5978871ef..5b52b890bc 100644 --- a/cmake/configure/configure_20_trilinos.cmake +++ b/cmake/configure/configure_20_trilinos.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2012 - 2023 by the deal.II authors +## Copyright (C) 2012 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/configure/configure_50_arborx.cmake b/cmake/configure/configure_50_arborx.cmake index 7c65183aa8..72be9a9c69 100644 --- a/cmake/configure/configure_50_arborx.cmake +++ b/cmake/configure/configure_50_arborx.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2021 - 2022 by the deal.II authors +## Copyright (C) 2021 - 2023 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/configure/configure_50_complex_values.cmake b/cmake/configure/configure_50_complex_values.cmake index e5bf9d7fe4..90fd976dc4 100644 --- a/cmake/configure/configure_50_complex_values.cmake +++ b/cmake/configure/configure_50_complex_values.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2018 - 2022 by the deal.II authors +## Copyright (C) 2018 - 2023 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/macros/macro_deal_ii_add_test.cmake b/cmake/macros/macro_deal_ii_add_test.cmake index 438c5c3fc6..2ceb75eeb8 100644 --- a/cmake/macros/macro_deal_ii_add_test.cmake +++ b/cmake/macros/macro_deal_ii_add_test.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2013 - 2023 by the deal.II authors +## Copyright (C) 2013 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/macros/macro_deal_ii_invoke_autopilot.cmake b/cmake/macros/macro_deal_ii_invoke_autopilot.cmake index 8c2925a079..8aa873f054 100644 --- a/cmake/macros/macro_deal_ii_invoke_autopilot.cmake +++ b/cmake/macros/macro_deal_ii_invoke_autopilot.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2012 - 2023 by the deal.II authors +## Copyright (C) 2012 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/macros/macro_deal_ii_pickup_tests.cmake b/cmake/macros/macro_deal_ii_pickup_tests.cmake index 219fd3f5bc..aaefaf1e63 100644 --- a/cmake/macros/macro_deal_ii_pickup_tests.cmake +++ b/cmake/macros/macro_deal_ii_pickup_tests.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2013 - 2022 by the deal.II authors +## Copyright (C) 2013 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/macros/macro_process_feature.cmake b/cmake/macros/macro_process_feature.cmake index fa131ad464..b310f73158 100644 --- a/cmake/macros/macro_process_feature.cmake +++ b/cmake/macros/macro_process_feature.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2014 - 2023 by the deal.II authors +## Copyright (C) 2014 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/modules/FindDEAL_II_KOKKOS.cmake b/cmake/modules/FindDEAL_II_KOKKOS.cmake index a750fd820c..953c582a50 100644 --- a/cmake/modules/FindDEAL_II_KOKKOS.cmake +++ b/cmake/modules/FindDEAL_II_KOKKOS.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2021 - 2023 by the deal.II authors +## Copyright (C) 2021 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/setup_cached_variables.cmake b/cmake/setup_cached_variables.cmake index 8256b01dd1..642f594c0f 100644 --- a/cmake/setup_cached_variables.cmake +++ b/cmake/setup_cached_variables.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2012 - 2022 by the deal.II authors +## Copyright (C) 2012 - 2023 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/setup_compiler_flags.cmake b/cmake/setup_compiler_flags.cmake index 53163215b4..a46ec7f4c0 100644 --- a/cmake/setup_compiler_flags.cmake +++ b/cmake/setup_compiler_flags.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2012 - 2022 by the deal.II authors +## Copyright (C) 2012 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/setup_compiler_flags_gnu.cmake b/cmake/setup_compiler_flags_gnu.cmake index dbc82ade86..7b6a3e1aa7 100644 --- a/cmake/setup_compiler_flags_gnu.cmake +++ b/cmake/setup_compiler_flags_gnu.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2012 - 2023 by the deal.II authors +## Copyright (C) 2012 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/cmake/setup_write_config.cmake b/cmake/setup_write_config.cmake index 942d7dbd3d..0f53f9b8f3 100644 --- a/cmake/setup_write_config.cmake +++ b/cmake/setup_write_config.cmake @@ -1,6 +1,6 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2014 - 2023 by the deal.II authors +## Copyright (C) 2014 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/contrib/python-bindings/include/mapping_wrapper.h b/contrib/python-bindings/include/mapping_wrapper.h index 52c2ee2aa8..d377a6e4dc 100644 --- a/contrib/python-bindings/include/mapping_wrapper.h +++ b/contrib/python-bindings/include/mapping_wrapper.h @@ -1,6 +1,6 @@ // --------------------------------------------------------------------- // -// Copyright (C) 2016 - 2021 by the deal.II authors +// Copyright (C) 2016 - 2023 by the deal.II authors // // This file is part of the deal.II library. // diff --git a/contrib/python-bindings/include/tria_accessor_wrapper.h b/contrib/python-bindings/include/tria_accessor_wrapper.h index c81e060cb3..d494da80b3 100644 --- a/contrib/python-bindings/include/tria_accessor_wrapper.h +++ b/contrib/python-bindings/include/tria_accessor_wrapper.h @@ -1,6 +1,6 @@ // --------------------------------------------------------------------- // -// Copyright (C) 2019 - 2021 by the deal.II authors +// Copyright (C) 2019 - 2023 by the deal.II authors // // This file is part of the deal.II library. // diff --git a/contrib/python-bindings/include/triangulation_wrapper.h b/contrib/python-bindings/include/triangulation_wrapper.h index 995aeb170b..658a8553c0 100644 --- a/contrib/python-bindings/include/triangulation_wrapper.h +++ b/contrib/python-bindings/include/triangulation_wrapper.h @@ -1,6 +1,6 @@ // --------------------------------------------------------------------- // -// Copyright (C) 2016 - 2022 by the deal.II authors +// Copyright (C) 2016 - 2023 by the deal.II authors // // This file is part of the deal.II library. // diff --git a/contrib/python-bindings/source/export_mapping.cc b/contrib/python-bindings/source/export_mapping.cc index c932e2c689..efcb709220 100644 --- a/contrib/python-bindings/source/export_mapping.cc +++ b/contrib/python-bindings/source/export_mapping.cc @@ -1,6 +1,6 @@ // --------------------------------------------------------------------- // -// Copyright (C) 2016 - 2021 by the deal.II authors +// Copyright (C) 2016 - 2023 by the deal.II authors // // This file is part of the deal.II library. // diff --git a/contrib/python-bindings/source/export_triangulation.cc b/contrib/python-bindings/source/export_triangulation.cc index 15a432b775..afb1fe6f84 100644 --- a/contrib/python-bindings/source/export_triangulation.cc +++ b/contrib/python-bindings/source/export_triangulation.cc @@ -1,6 +1,6 @@ // --------------------------------------------------------------------- // -// Copyright (C) 2016 - 2022 by the deal.II authors +// Copyright (C) 2016 - 2023 by the deal.II authors // // This file is part of the deal.II library. // diff --git a/contrib/python-bindings/source/mapping_wrapper.cc b/contrib/python-bindings/source/mapping_wrapper.cc index 5e7dd18f29..229c2e5ce0 100644 --- a/contrib/python-bindings/source/mapping_wrapper.cc +++ b/contrib/python-bindings/source/mapping_wrapper.cc @@ -1,6 +1,6 @@ // --------------------------------------------------------------------- // -// Copyright (C) 2016 - 2021 by the deal.II authors +// Copyright (C) 2016 - 2023 by the deal.II authors // // This file is part of the deal.II library. // diff --git a/contrib/python-bindings/source/tria_accessor_wrapper.cc b/contrib/python-bindings/source/tria_accessor_wrapper.cc index 2d11854974..f445cc863b 100644 --- a/contrib/python-bindings/source/tria_accessor_wrapper.cc +++ b/contrib/python-bindings/source/tria_accessor_wrapper.cc @@ -1,6 +1,6 @@ // --------------------------------------------------------------------- // -// Copyright (C) 2021 by the deal.II authors +// Copyright (C) 2021 - 2023 by the deal.II authors // // This file is part of the deal.II library. // diff --git a/contrib/python-bindings/source/triangulation_wrapper.cc b/contrib/python-bindings/source/triangulation_wrapper.cc index 5c2484b81f..24d276098b 100644 --- a/contrib/python-bindings/source/triangulation_wrapper.cc +++ b/contrib/python-bindings/source/triangulation_wrapper.cc @@ -1,6 +1,6 @@ // --------------------------------------------------------------------- // -// Copyright (C) 2016 - 2022 by the deal.II authors +// Copyright (C) 2016 - 2023 by the deal.II authors // // This file is part of the deal.II library. // diff --git a/contrib/python-bindings/source/wrappers.cc b/contrib/python-bindings/source/wrappers.cc index 0846367979..59a9a796a0 100644 --- a/contrib/python-bindings/source/wrappers.cc +++ b/contrib/python-bindings/source/wrappers.cc @@ -1,6 +1,6 @@ // --------------------------------------------------------------------- // -// Copyright (C) 2016 - 2021 by the deal.II authors +// Copyright (C) 2016 - 2023 by the deal.II authors // // This file is part of the deal.II library. // diff --git a/contrib/python-bindings/tests/cell_accessor_wrapper.py b/contrib/python-bindings/tests/cell_accessor_wrapper.py index 0f82379016..a4f5198793 100644 --- a/contrib/python-bindings/tests/cell_accessor_wrapper.py +++ b/contrib/python-bindings/tests/cell_accessor_wrapper.py @@ -1,6 +1,6 @@ # --------------------------------------------------------------------- # -# Copyright (C) 2016 - 2019 by the deal.II authors +# Copyright (C) 2016 - 2023 by the deal.II authors # # This file is part of the deal.II library. # diff --git a/contrib/python-bindings/tests/manifold_wrapper.py b/contrib/python-bindings/tests/manifold_wrapper.py index 98b2c0bc29..52a3e14257 100644 --- a/contrib/python-bindings/tests/manifold_wrapper.py +++ b/contrib/python-bindings/tests/manifold_wrapper.py @@ -1,6 +1,6 @@ # --------------------------------------------------------------------- # -# Copyright (C) 2016 - 2020 by the deal.II authors +# Copyright (C) 2016 - 2023 by the deal.II authors # # This file is part of the deal.II library. # diff --git a/contrib/python-bindings/tests/mapping_wrapper.py b/contrib/python-bindings/tests/mapping_wrapper.py index 7094242bdf..fa43f34d0a 100644 --- a/contrib/python-bindings/tests/mapping_wrapper.py +++ b/contrib/python-bindings/tests/mapping_wrapper.py @@ -1,6 +1,6 @@ # --------------------------------------------------------------------- # -# Copyright (C) 2016 - 2021 by the deal.II authors +# Copyright (C) 2016 - 2023 by the deal.II authors # # This file is part of the deal.II library. # diff --git a/contrib/python-bindings/tests/point_wrapper.py b/contrib/python-bindings/tests/point_wrapper.py index 794b7c68b2..3a0a138dd7 100644 --- a/contrib/python-bindings/tests/point_wrapper.py +++ b/contrib/python-bindings/tests/point_wrapper.py @@ -1,6 +1,6 @@ # --------------------------------------------------------------------- # -# Copyright (C) 2016 - 2018 by the deal.II authors +# Copyright (C) 2016 - 2023 by the deal.II authors # # This file is part of the deal.II library. # diff --git a/contrib/python-bindings/tests/quadrature_wrapper.py b/contrib/python-bindings/tests/quadrature_wrapper.py index b93bc7055f..98cabf0213 100644 --- a/contrib/python-bindings/tests/quadrature_wrapper.py +++ b/contrib/python-bindings/tests/quadrature_wrapper.py @@ -1,6 +1,6 @@ # --------------------------------------------------------------------- # -# Copyright (C) 2016 - 2020 by the deal.II authors +# Copyright (C) 2016 - 2023 by the deal.II authors # # This file is part of the deal.II library. # diff --git a/contrib/python-bindings/tests/triangulation_wrapper.py b/contrib/python-bindings/tests/triangulation_wrapper.py index 800be864e1..57ac971477 100644 --- a/contrib/python-bindings/tests/triangulation_wrapper.py +++ b/contrib/python-bindings/tests/triangulation_wrapper.py @@ -1,6 +1,6 @@ # --------------------------------------------------------------------- # -# Copyright (C) 2016 - 2022 by the deal.II authors +# Copyright (C) 2016 - 2023 by the deal.II authors # # This file is part of the deal.II library. # diff --git a/contrib/utilities/count_lines.sh b/contrib/utilities/count_lines.sh index 120876159e..2d226dc9ef 100755 --- a/contrib/utilities/count_lines.sh +++ b/contrib/utilities/count_lines.sh @@ -1,7 +1,7 @@ #!/bin/sh ## --------------------------------------------------------------------- ## -## Copyright (C) 2018 - 2022 by the deal.II authors +## Copyright (C) 2018 - 2023 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/contrib/utilities/indent b/contrib/utilities/indent index e2e7307e74..f8b475033d 100755 --- a/contrib/utilities/indent +++ b/contrib/utilities/indent @@ -1,7 +1,7 @@ #!/bin/bash ## --------------------------------------------------------------------- ## -## Copyright (C) 2018 - 2022 by the deal.II authors +## Copyright (C) 2018 - 2024 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/contrib/utilities/indent.py b/contrib/utilities/indent.py index 9c61637b02..d59614d13d 100644 --- a/contrib/utilities/indent.py +++ b/contrib/utilities/indent.py @@ -2,7 +2,7 @@ ## --------------------------------------------------------------------- ## -## Copyright (C) 2019 - 2022 by the deal.II authors +## Copyright (C) 2019 - 2023 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/contrib/utilities/indent_common.sh b/contrib/utilities/indent_common.sh index 09f2982bc7..97c67aabd4 100644 --- a/contrib/utilities/indent_common.sh +++ b/contrib/utilities/indent_common.sh @@ -1,7 +1,7 @@ #!/bin/bash ## --------------------------------------------------------------------- ## -## Copyright (C) 2018 - 2022 by the deal.II authors +## Copyright (C) 2018 - 2023 by the deal.II authors ## ## This file is part of the deal.II library. ## diff --git a/doc/developers/packaging.html b/doc/developers/packaging.html index 0319b365e4..0e8db8cdab 100644 --- a/doc/developers/packaging.html +++ b/doc/developers/packaging.html @@ -4,7 +4,7 @@ Packaging deal.II - + diff --git a/doc/developers/porting.html b/doc/developers/porting.html index 412e176178..d1e416f951 100644 --- a/doc/developers/porting.html +++ b/doc/developers/porting.html @@ -4,7 +4,7 @@ Porting deal.II - + diff --git a/doc/developers/testsuite.html b/doc/developers/testsuite.html index 72b4cb949c..acb8283287 100644 --- a/doc/developers/testsuite.html +++ b/doc/developers/testsuite.html @@ -5,7 +5,7 @@ The deal.II Testsuite - + @@ -652,7 +652,7 @@ category/test.run_only 
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2023 by the deal.II Authors
+// Copyright (C) 2015 - 2024 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/developers/writing-documentation.html b/doc/developers/writing-documentation.html
index 41a580ef12..83d9df1cc6 100644
--- a/doc/developers/writing-documentation.html
+++ b/doc/developers/writing-documentation.html
@@ -5,7 +5,7 @@
   
   Writing documentation
   
-  
+  
   
   
 
diff --git a/doc/doxygen/code-gallery/CMakeLists.txt b/doc/doxygen/code-gallery/CMakeLists.txt
index bd08375a41..771febf819 100644
--- a/doc/doxygen/code-gallery/CMakeLists.txt
+++ b/doc/doxygen/code-gallery/CMakeLists.txt
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2015 - 2022 by the deal.II Authors
+## Copyright (C) 2015 - 2023 by the deal.II Authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/code-gallery/code-gallery.h.in b/doc/doxygen/code-gallery/code-gallery.h.in
index 15e580062d..2d00f89ed1 100644
--- a/doc/doxygen/code-gallery/code-gallery.h.in
+++ b/doc/doxygen/code-gallery/code-gallery.h.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/code-gallery/no-code-gallery.h b/doc/doxygen/code-gallery/no-code-gallery.h
index 30e9d9ec86..f929b8a495 100644
--- a/doc/doxygen/code-gallery/no-code-gallery.h
+++ b/doc/doxygen/code-gallery/no-code-gallery.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/coding_conventions.h b/doc/doxygen/headers/coding_conventions.h
index 6dde01655c..4b98964167 100644
--- a/doc/doxygen/headers/coding_conventions.h
+++ b/doc/doxygen/headers/coding_conventions.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/concepts.h b/doc/doxygen/headers/concepts.h
index 2c192b898f..cf7916ba67 100644
--- a/doc/doxygen/headers/concepts.h
+++ b/doc/doxygen/headers/concepts.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/constraints.h b/doc/doxygen/headers/constraints.h
index f04f0d4132..b2deeacd87 100644
--- a/doc/doxygen/headers/constraints.h
+++ b/doc/doxygen/headers/constraints.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/distributed.h b/doc/doxygen/headers/distributed.h
index b5051cf592..d6fc058536 100644
--- a/doc/doxygen/headers/distributed.h
+++ b/doc/doxygen/headers/distributed.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/dofs.h b/doc/doxygen/headers/dofs.h
index 931d511fd9..493d5b7de5 100644
--- a/doc/doxygen/headers/dofs.h
+++ b/doc/doxygen/headers/dofs.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/exceptions.h b/doc/doxygen/headers/exceptions.h
index 5ce2dc90a4..925ac7fc1d 100644
--- a/doc/doxygen/headers/exceptions.h
+++ b/doc/doxygen/headers/exceptions.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/geodynamics.h b/doc/doxygen/headers/geodynamics.h
index 95f9003895..f5859f8060 100644
--- a/doc/doxygen/headers/geodynamics.h
+++ b/doc/doxygen/headers/geodynamics.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/glossary.h b/doc/doxygen/headers/glossary.h
index 2ee8b44ea9..5140e1769e 100644
--- a/doc/doxygen/headers/glossary.h
+++ b/doc/doxygen/headers/glossary.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/hp.h b/doc/doxygen/headers/hp.h
index 8ea799c0db..1ea8bcfa2c 100644
--- a/doc/doxygen/headers/hp.h
+++ b/doc/doxygen/headers/hp.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/iterators.h b/doc/doxygen/headers/iterators.h
index f3bbae1dd6..6aa2d4f1e4 100644
--- a/doc/doxygen/headers/iterators.h
+++ b/doc/doxygen/headers/iterators.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/main.h b/doc/doxygen/headers/main.h
index 9b309b513e..df9986189e 100644
--- a/doc/doxygen/headers/main.h
+++ b/doc/doxygen/headers/main.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/headers/multithreading.h b/doc/doxygen/headers/multithreading.h
index 90e22cdff5..0d13c85289 100644
--- a/doc/doxygen/headers/multithreading.h
+++ b/doc/doxygen/headers/multithreading.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/doc/doxygen/scripts/create_anchors.pl b/doc/doxygen/scripts/create_anchors.pl
index 51cd419a32..5235b1d4bf 100644
--- a/doc/doxygen/scripts/create_anchors.pl
+++ b/doc/doxygen/scripts/create_anchors.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2007 - 2014 by the deal.II authors
+## Copyright (C) 2007 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/filter.pl b/doc/doxygen/scripts/filter.pl
index 5937b8e755..35565556a7 100755
--- a/doc/doxygen/scripts/filter.pl
+++ b/doc/doxygen/scripts/filter.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2007 - 2021 by the deal.II authors
+## Copyright (C) 2007 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/intro2toc.pl b/doc/doxygen/scripts/intro2toc.pl
index 4e265fdb05..d82bc2b975 100644
--- a/doc/doxygen/scripts/intro2toc.pl
+++ b/doc/doxygen/scripts/intro2toc.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2006 - 2018 by the deal.II authors
+## Copyright (C) 2006 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/make_gallery.pl b/doc/doxygen/scripts/make_gallery.pl
index 51f21505c0..de8120a71e 100644
--- a/doc/doxygen/scripts/make_gallery.pl
+++ b/doc/doxygen/scripts/make_gallery.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2013 - 2022 by the deal.II authors
+## Copyright (C) 2013 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/make_step.pl b/doc/doxygen/scripts/make_step.pl
index dc4f4b0fab..329fd47832 100644
--- a/doc/doxygen/scripts/make_step.pl
+++ b/doc/doxygen/scripts/make_step.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2013 - 2022 by the deal.II authors
+## Copyright (C) 2013 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/program2doxygen.pl b/doc/doxygen/scripts/program2doxygen.pl
index 9cd723b0f1..e7115506c6 100644
--- a/doc/doxygen/scripts/program2doxygen.pl
+++ b/doc/doxygen/scripts/program2doxygen.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2006 - 2022 by the deal.II authors
+## Copyright (C) 2006 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/program2html.pl b/doc/doxygen/scripts/program2html.pl
index 9151d7d14f..3abbd8ea75 100644
--- a/doc/doxygen/scripts/program2html.pl
+++ b/doc/doxygen/scripts/program2html.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2006 - 2021 by the deal.II authors
+## Copyright (C) 2006 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/program2plain.pl b/doc/doxygen/scripts/program2plain.pl
index 21475d19cf..d28992d7e8 100644
--- a/doc/doxygen/scripts/program2plain.pl
+++ b/doc/doxygen/scripts/program2plain.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2010 - 2021 by the deal.II authors
+## Copyright (C) 2010 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/program2toc.pl b/doc/doxygen/scripts/program2toc.pl
index 0d268b3614..4ef53b25b4 100644
--- a/doc/doxygen/scripts/program2toc.pl
+++ b/doc/doxygen/scripts/program2toc.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2006 - 2014 by the deal.II authors
+## Copyright (C) 2006 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/steps.pl b/doc/doxygen/scripts/steps.pl
index f6f6713ada..e2d1808cc2 100644
--- a/doc/doxygen/scripts/steps.pl
+++ b/doc/doxygen/scripts/steps.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2006 - 2022 by the deal.II authors
+## Copyright (C) 2006 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/scripts/validate-xrefs.pl b/doc/doxygen/scripts/validate-xrefs.pl
index 13474b62f8..cccaea67e2 100644
--- a/doc/doxygen/scripts/validate-xrefs.pl
+++ b/doc/doxygen/scripts/validate-xrefs.pl
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2006 - 2021 by the deal.II authors
+## Copyright (C) 2006 - 2023 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/doxygen/tutorial/CMakeLists.txt b/doc/doxygen/tutorial/CMakeLists.txt
index 5f94472d55..e324651b65 100644
--- a/doc/doxygen/tutorial/CMakeLists.txt
+++ b/doc/doxygen/tutorial/CMakeLists.txt
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2012 - 2022 by the deal.II Authors
+## Copyright (C) 2012 - 2023 by the deal.II Authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/doc/external-libs/arpack.html b/doc/external-libs/arpack.html
index c44d244cb8..5f85788310 100644
--- a/doc/external-libs/arpack.html
+++ b/doc/external-libs/arpack.html
@@ -5,7 +5,7 @@
   
     The deal.II Readme on interfacing to ARPACK
     
-    
+    
     
   
   
diff --git a/doc/external-libs/ginkgo.html b/doc/external-libs/ginkgo.html
index 56fb0c1c49..9126c78156 100644
--- a/doc/external-libs/ginkgo.html
+++ b/doc/external-libs/ginkgo.html
@@ -4,7 +4,7 @@
   
     The deal.II Readme on interfacing to Ginkgo
     
-    
+    
     
   
 
diff --git a/doc/external-libs/gsl.html b/doc/external-libs/gsl.html
index e68ab6c24b..45b37346de 100644
--- a/doc/external-libs/gsl.html
+++ b/doc/external-libs/gsl.html
@@ -5,7 +5,7 @@
   
     The deal.II Readme on interfacing to GSL
     
-    
+    
     
   
   
diff --git a/doc/external-libs/lapack.html b/doc/external-libs/lapack.html
index 2ce9445a19..996e3b0479 100644
--- a/doc/external-libs/lapack.html
+++ b/doc/external-libs/lapack.html
@@ -5,7 +5,7 @@
   
     The deal.II Readme on interfacing to BLAS/LAPACK
     
-    
+    
     
   
   
diff --git a/doc/external-libs/opencascade.html b/doc/external-libs/opencascade.html
index 9a3e6efc4a..6c071e6d34 100644
--- a/doc/external-libs/opencascade.html
+++ b/doc/external-libs/opencascade.html
@@ -5,7 +5,7 @@
   
     The deal.II Readme on interfacing to OpenCASCADE
     
-    
+    
     
   
   
diff --git a/doc/external-libs/p4est.html b/doc/external-libs/p4est.html
index 0544dfa86c..653ce18412 100644
--- a/doc/external-libs/p4est.html
+++ b/doc/external-libs/p4est.html
@@ -4,7 +4,7 @@
   
     The deal.II Readme on interfacing to p4est
     
-    
+    
     
   
 
diff --git a/doc/external-libs/petsc.html b/doc/external-libs/petsc.html
index 736fdca687..a865d3fd41 100644
--- a/doc/external-libs/petsc.html
+++ b/doc/external-libs/petsc.html
@@ -4,7 +4,7 @@
   
     The deal.II Readme on interfacing to PETSc
     
-    
+    
     
   
 
diff --git a/doc/external-libs/slepc.html b/doc/external-libs/slepc.html
index d7435f8649..39da4233e6 100644
--- a/doc/external-libs/slepc.html
+++ b/doc/external-libs/slepc.html
@@ -4,7 +4,7 @@
   
     The deal.II Readme on interfacing to SLEPc
     
-    
+    
     
   
 
diff --git a/doc/index.html b/doc/index.html
index b255467246..a97ddf92d7 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -5,7 +5,7 @@
     deal.II Documentation
     
     
-    
+    
     
     
 
diff --git a/doc/users/doxygen.html b/doc/users/doxygen.html
index ada77925cf..6c1cca7823 100644
--- a/doc/users/doxygen.html
+++ b/doc/users/doxygen.html
@@ -6,7 +6,7 @@
   deal.II Doxygen documentation
   
   
-  
+  
   
   
 
diff --git a/doc/users/gdb.html b/doc/users/gdb.html
index 9a5ee4bf75..9f6286c2c9 100644
--- a/doc/users/gdb.html
+++ b/doc/users/gdb.html
@@ -6,7 +6,7 @@
     deal.II GDB documentation
     
     
-    
+    
     
     
   
diff --git a/examples/doxygen/step_3_mixed.cc b/examples/doxygen/step_3_mixed.cc
index a9fcbfc683..71d92f33e4 100644
--- a/examples/doxygen/step_3_mixed.cc
+++ b/examples/doxygen/step_3_mixed.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 1999 - 2023 by the deal.II authors
+ * Copyright (C) 1999 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-1/step-1.cc b/examples/step-1/step-1.cc
index 1689413e8f..bb7b3341d9 100644
--- a/examples/step-1/step-1.cc
+++ b/examples/step-1/step-1.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 1999 - 2022 by the deal.II authors
+ * Copyright (C) 1999 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-10/step-10.cc b/examples/step-10/step-10.cc
index 63b63fd692..48dfd6860f 100644
--- a/examples/step-10/step-10.cc
+++ b/examples/step-10/step-10.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2001 - 2022 by the deal.II authors
+ * Copyright (C) 2001 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-12/step-12.cc b/examples/step-12/step-12.cc
index ac35aad427..9a71ae743c 100644
--- a/examples/step-12/step-12.cc
+++ b/examples/step-12/step-12.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2022 by the deal.II authors
+ * Copyright (C) 2009 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-12b/step-12b.cc b/examples/step-12b/step-12b.cc
index 4f5c9e6d67..d4893a9730 100644
--- a/examples/step-12b/step-12b.cc
+++ b/examples/step-12b/step-12b.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2022 by the deal.II authors
+ * Copyright (C) 2009 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-13/step-13.cc b/examples/step-13/step-13.cc
index 4dcc4731ac..564dbd22ff 100644
--- a/examples/step-13/step-13.cc
+++ b/examples/step-13/step-13.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2001 - 2023 by the deal.II authors
+ * Copyright (C) 2001 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-14/step-14.cc b/examples/step-14/step-14.cc
index 6dd5e54a51..8fe49419e9 100644
--- a/examples/step-14/step-14.cc
+++ b/examples/step-14/step-14.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2002 - 2021 by the deal.II authors
+ * Copyright (C) 2002 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-16/step-16.cc b/examples/step-16/step-16.cc
index 28491f00a2..9b95f887f8 100644
--- a/examples/step-16/step-16.cc
+++ b/examples/step-16/step-16.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2003 - 2022 by the deal.II authors
+ * Copyright (C) 2003 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-16b/step-16b.cc b/examples/step-16b/step-16b.cc
index 2755514570..ff9e44510c 100644
--- a/examples/step-16b/step-16b.cc
+++ b/examples/step-16b/step-16b.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2003 - 2022 by the deal.II authors
+ * Copyright (C) 2003 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-17/step-17.cc b/examples/step-17/step-17.cc
index dbdb7db9d7..33b7cddac5 100644
--- a/examples/step-17/step-17.cc
+++ b/examples/step-17/step-17.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2000 - 2023 by the deal.II authors
+ * Copyright (C) 2000 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-18/step-18.cc b/examples/step-18/step-18.cc
index 6466819be9..648c7c9bd3 100644
--- a/examples/step-18/step-18.cc
+++ b/examples/step-18/step-18.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2000 - 2023 by the deal.II authors
+ * Copyright (C) 2000 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-19/step-19.cc b/examples/step-19/step-19.cc
index 1b73d84c8d..9ee197fa4c 100644
--- a/examples/step-19/step-19.cc
+++ b/examples/step-19/step-19.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-21/step-21.cc b/examples/step-21/step-21.cc
index 299da5f643..f3d22da0ac 100644
--- a/examples/step-21/step-21.cc
+++ b/examples/step-21/step-21.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2006 - 2023 by the deal.II authors
+ * Copyright (C) 2006 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-25/step-25.cc b/examples/step-25/step-25.cc
index 9419b4dbfe..a810fa4d3c 100644
--- a/examples/step-25/step-25.cc
+++ b/examples/step-25/step-25.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2006 - 2023 by the deal.II authors
+ * Copyright (C) 2006 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-26/step-26.cc b/examples/step-26/step-26.cc
index ea771bc2c8..f98c723e5a 100644
--- a/examples/step-26/step-26.cc
+++ b/examples/step-26/step-26.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2013 - 2021 by the deal.II authors
+ * Copyright (C) 2013 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-27/step-27.cc b/examples/step-27/step-27.cc
index 1cdb9fa381..4a48c2625a 100644
--- a/examples/step-27/step-27.cc
+++ b/examples/step-27/step-27.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2006 - 2021 by the deal.II authors
+ * Copyright (C) 2006 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-30/step-30.cc b/examples/step-30/step-30.cc
index ed0381ff4b..9271905e13 100644
--- a/examples/step-30/step-30.cc
+++ b/examples/step-30/step-30.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2007 - 2023 by the deal.II authors
+ * Copyright (C) 2007 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-31/step-31.cc b/examples/step-31/step-31.cc
index 8a62a8cc57..3dfc24735c 100644
--- a/examples/step-31/step-31.cc
+++ b/examples/step-31/step-31.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2007 - 2023 by the deal.II authors
+ * Copyright (C) 2007 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-32/step-32.cc b/examples/step-32/step-32.cc
index d5be30c8b6..7f085a78b8 100644
--- a/examples/step-32/step-32.cc
+++ b/examples/step-32/step-32.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2008 - 2023 by the deal.II authors
+ * Copyright (C) 2008 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-33/step-33.cc b/examples/step-33/step-33.cc
index e959af296c..857ba8fc2e 100644
--- a/examples/step-33/step-33.cc
+++ b/examples/step-33/step-33.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2007 - 2023 by the deal.II authors
+ * Copyright (C) 2007 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-34/step-34.cc b/examples/step-34/step-34.cc
index 1398bbb350..2a18633864 100644
--- a/examples/step-34/step-34.cc
+++ b/examples/step-34/step-34.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2022 by the deal.II authors
+ * Copyright (C) 2009 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-35/step-35.cc b/examples/step-35/step-35.cc
index fbafbb4327..b362737908 100644
--- a/examples/step-35/step-35.cc
+++ b/examples/step-35/step-35.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2023 by the deal.II authors
+ * Copyright (C) 2009 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-38/step-38.cc b/examples/step-38/step-38.cc
index 7e038b0b82..fe82282320 100644
--- a/examples/step-38/step-38.cc
+++ b/examples/step-38/step-38.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2010 - 2022 by the deal.II authors
+ * Copyright (C) 2010 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-39/step-39.cc b/examples/step-39/step-39.cc
index b345fd76ee..7acb5d8857 100644
--- a/examples/step-39/step-39.cc
+++ b/examples/step-39/step-39.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2010 - 2022 by the deal.II authors
+ * Copyright (C) 2010 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-4/step-4.cc b/examples/step-4/step-4.cc
index e24dd1f593..d2706928f4 100644
--- a/examples/step-4/step-4.cc
+++ b/examples/step-4/step-4.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 1999 - 2023 by the deal.II authors
+ * Copyright (C) 1999 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-41/step-41.cc b/examples/step-41/step-41.cc
index 6d61c69044..f725c7377f 100644
--- a/examples/step-41/step-41.cc
+++ b/examples/step-41/step-41.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2011 - 2023 by the deal.II authors
+ * Copyright (C) 2011 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-42/step-42.cc b/examples/step-42/step-42.cc
index fb7ba226d1..2372a3586e 100644
--- a/examples/step-42/step-42.cc
+++ b/examples/step-42/step-42.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2012 - 2023 by the deal.II authors
+ * Copyright (C) 2012 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-43/step-43.cc b/examples/step-43/step-43.cc
index 3fd48cacc2..7f1038a4dd 100644
--- a/examples/step-43/step-43.cc
+++ b/examples/step-43/step-43.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2010 - 2023 by the deal.II authors
+ * Copyright (C) 2010 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-44/step-44.cc b/examples/step-44/step-44.cc
index c9e673bed4..075aa1e227 100644
--- a/examples/step-44/step-44.cc
+++ b/examples/step-44/step-44.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2010 - 2023 by the deal.II authors and
+ * Copyright (C) 2010 - 2024 by the deal.II authors and
  *                              & Jean-Paul Pelteret and Andrew McBride
  *
  * This file is part of the deal.II library.
diff --git a/examples/step-46/step-46.cc b/examples/step-46/step-46.cc
index 04a75d75ee..831a891036 100644
--- a/examples/step-46/step-46.cc
+++ b/examples/step-46/step-46.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2011 - 2021 by the deal.II authors
+ * Copyright (C) 2011 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-47/step-47.cc b/examples/step-47/step-47.cc
index 40592f1dda..c78a484c4a 100644
--- a/examples/step-47/step-47.cc
+++ b/examples/step-47/step-47.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2023 by the deal.II authors
+ * Copyright (C) 2019 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-49/step-49.cc b/examples/step-49/step-49.cc
index db30d67822..11e3d004c8 100644
--- a/examples/step-49/step-49.cc
+++ b/examples/step-49/step-49.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2013 - 2022 by the deal.II authors
+ * Copyright (C) 2013 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-50/step-50.cc b/examples/step-50/step-50.cc
index f82e09dd32..c6c7302ec4 100644
--- a/examples/step-50/step-50.cc
+++ b/examples/step-50/step-50.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2023 by the deal.II authors
+ * Copyright (C) 2019 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-51/step-51.cc b/examples/step-51/step-51.cc
index 79de918418..7ec1ca7ac2 100644
--- a/examples/step-51/step-51.cc
+++ b/examples/step-51/step-51.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2013 - 2023 by the deal.II authors
+ * Copyright (C) 2013 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-52/step-52.cc b/examples/step-52/step-52.cc
index 96d247d29b..5b3ad4a6e2 100644
--- a/examples/step-52/step-52.cc
+++ b/examples/step-52/step-52.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2014 - 2023 by the deal.II authors
+ * Copyright (C) 2014 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-53/step-53.cc b/examples/step-53/step-53.cc
index 163fbfe2f5..744c2d811c 100644
--- a/examples/step-53/step-53.cc
+++ b/examples/step-53/step-53.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2014 - 2020 by the deal.II authors
+ * Copyright (C) 2014 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-54/step-54.cc b/examples/step-54/step-54.cc
index 70727c2984..c53eac7b33 100644
--- a/examples/step-54/step-54.cc
+++ b/examples/step-54/step-54.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2021 by the deal.II authors
+ * Copyright (C) 2009 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-55/step-55.cc b/examples/step-55/step-55.cc
index 9123f4c22e..6e5c9040cb 100644
--- a/examples/step-55/step-55.cc
+++ b/examples/step-55/step-55.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2023 by the deal.II authors
+ * Copyright (C) 2016 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-56/step-56.cc b/examples/step-56/step-56.cc
index 2ae71956ef..c6221323eb 100644
--- a/examples/step-56/step-56.cc
+++ b/examples/step-56/step-56.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2023 by the deal.II authors
+ * Copyright (C) 2016 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-57/step-57.cc b/examples/step-57/step-57.cc
index 58086ee94d..c5e6891859 100644
--- a/examples/step-57/step-57.cc
+++ b/examples/step-57/step-57.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2008 - 2023 by the deal.II authors
+ * Copyright (C) 2008 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-62/step-62.cc b/examples/step-62/step-62.cc
index 80856be1dd..510a381265 100644
--- a/examples/step-62/step-62.cc
+++ b/examples/step-62/step-62.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2023 by the deal.II authors
+ * Copyright (C) 2018 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-63/step-63.cc b/examples/step-63/step-63.cc
index 187708f77e..68e97f6424 100644
--- a/examples/step-63/step-63.cc
+++ b/examples/step-63/step-63.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2023 by the deal.II authors
+ * Copyright (C) 2018 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-64/step-64.cc b/examples/step-64/step-64.cc
index 31ea8c2a17..616091880f 100644
--- a/examples/step-64/step-64.cc
+++ b/examples/step-64/step-64.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2023 by the deal.II authors
+ * Copyright (C) 2019 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-67/step-67.cc b/examples/step-67/step-67.cc
index 9cdd906435..ecea9079ca 100644
--- a/examples/step-67/step-67.cc
+++ b/examples/step-67/step-67.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2023 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-68/step-68.cc b/examples/step-68/step-68.cc
index aeeb38fb9a..edcae0fd3e 100644
--- a/examples/step-68/step-68.cc
+++ b/examples/step-68/step-68.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2023 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-7/step-7.cc b/examples/step-7/step-7.cc
index 4b3ada0241..d7e157f9c9 100644
--- a/examples/step-7/step-7.cc
+++ b/examples/step-7/step-7.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2000 - 2023 by the deal.II authors
+ * Copyright (C) 2000 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-71/step-71.cc b/examples/step-71/step-71.cc
index 51fab4d34a..d5bbcc8f9a 100644
--- a/examples/step-71/step-71.cc
+++ b/examples/step-71/step-71.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2022 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-74/step-74.cc b/examples/step-74/step-74.cc
index b615869687..2f43bf62e8 100644
--- a/examples/step-74/step-74.cc
+++ b/examples/step-74/step-74.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-75/step-75.cc b/examples/step-75/step-75.cc
index bda81ee71b..9374efab81 100644
--- a/examples/step-75/step-75.cc
+++ b/examples/step-75/step-75.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2023 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-76/step-76.cc b/examples/step-76/step-76.cc
index 0921688438..2964f7d666 100644
--- a/examples/step-76/step-76.cc
+++ b/examples/step-76/step-76.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2023 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-78/step-78.cc b/examples/step-78/step-78.cc
index 7a44646b3e..b90e3f9488 100644
--- a/examples/step-78/step-78.cc
+++ b/examples/step-78/step-78.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2023 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-79/step-79.cc b/examples/step-79/step-79.cc
index b014fec61c..6cf72afd3b 100644
--- a/examples/step-79/step-79.cc
+++ b/examples/step-79/step-79.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2023 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-8/step-8.cc b/examples/step-8/step-8.cc
index 15a83825c7..ffa866d4e7 100644
--- a/examples/step-8/step-8.cc
+++ b/examples/step-8/step-8.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2000 - 2023 by the deal.II authors
+ * Copyright (C) 2000 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-82/step-82.cc b/examples/step-82/step-82.cc
index a73a9c09a6..c454786c2c 100644
--- a/examples/step-82/step-82.cc
+++ b/examples/step-82/step-82.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2023 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-85/step-85.cc b/examples/step-85/step-85.cc
index 1daf5dd210..a3336c1575 100644
--- a/examples/step-85/step-85.cc
+++ b/examples/step-85/step-85.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2023 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/examples/step-9/step-9.cc b/examples/step-9/step-9.cc
index 8f239251b3..4c1e4bf5c3 100644
--- a/examples/step-9/step-9.cc
+++ b/examples/step-9/step-9.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2000 - 2023 by the deal.II authors
+ * Copyright (C) 2000 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/include/deal.II/algorithms/any_data.h b/include/deal.II/algorithms/any_data.h
index c03a49cd9a..46942f0c78 100644
--- a/include/deal.II/algorithms/any_data.h
+++ b/include/deal.II/algorithms/any_data.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/algorithms/general_data_storage.h b/include/deal.II/algorithms/general_data_storage.h
index 30746c2daa..1fe2bc2216 100644
--- a/include/deal.II/algorithms/general_data_storage.h
+++ b/include/deal.II/algorithms/general_data_storage.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/algorithms/theta_timestepping.templates.h b/include/deal.II/algorithms/theta_timestepping.templates.h
index 02adf69a2c..3a74fdbd4a 100644
--- a/include/deal.II/algorithms/theta_timestepping.templates.h
+++ b/include/deal.II/algorithms/theta_timestepping.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2019 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/auto_derivative_function.h b/include/deal.II/base/auto_derivative_function.h
index 881a602cbd..8a01f4dfb3 100644
--- a/include/deal.II/base/auto_derivative_function.h
+++ b/include/deal.II/base/auto_derivative_function.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2020 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/complex_overloads.h b/include/deal.II/base/complex_overloads.h
index a681029062..0e3d1ee364 100644
--- a/include/deal.II/base/complex_overloads.h
+++ b/include/deal.II/base/complex_overloads.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/conditional_ostream.h b/include/deal.II/base/conditional_ostream.h
index 13944e5cb0..d089e2d8ad 100644
--- a/include/deal.II/base/conditional_ostream.h
+++ b/include/deal.II/base/conditional_ostream.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/config.h.in b/include/deal.II/base/config.h.in
index 2b7754470f..f1d7c7ed79 100644
--- a/include/deal.II/base/config.h.in
+++ b/include/deal.II/base/config.h.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2023 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/data_out_base.h b/include/deal.II/base/data_out_base.h
index 7e76bf3313..00eda1a769 100644
--- a/include/deal.II/base/data_out_base.h
+++ b/include/deal.II/base/data_out_base.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/exceptions.h b/include/deal.II/base/exceptions.h
index a547ca8eaa..c7dedb34c2 100644
--- a/include/deal.II/base/exceptions.h
+++ b/include/deal.II/base/exceptions.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/function.h b/include/deal.II/base/function.h
index d5e9d1934d..66e04a3d67 100644
--- a/include/deal.II/base/function.h
+++ b/include/deal.II/base/function.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/function.templates.h b/include/deal.II/base/function.templates.h
index fae02036d5..7f4e202b93 100644
--- a/include/deal.II/base/function.templates.h
+++ b/include/deal.II/base/function.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/function_bessel.h b/include/deal.II/base/function_bessel.h
index 42a0ddfa0c..0dc933b537 100644
--- a/include/deal.II/base/function_bessel.h
+++ b/include/deal.II/base/function_bessel.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/function_cspline.h b/include/deal.II/base/function_cspline.h
index e3f2314ae7..ccd2862e69 100644
--- a/include/deal.II/base/function_cspline.h
+++ b/include/deal.II/base/function_cspline.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/function_derivative.h b/include/deal.II/base/function_derivative.h
index 27ce9f72c2..5f4989e43f 100644
--- a/include/deal.II/base/function_derivative.h
+++ b/include/deal.II/base/function_derivative.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/function_parser.h b/include/deal.II/base/function_parser.h
index ded4a556e7..a6553ee2bf 100644
--- a/include/deal.II/base/function_parser.h
+++ b/include/deal.II/base/function_parser.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/function_spherical.h b/include/deal.II/base/function_spherical.h
index 2459155efe..47767a5374 100644
--- a/include/deal.II/base/function_spherical.h
+++ b/include/deal.II/base/function_spherical.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/function_tools.h b/include/deal.II/base/function_tools.h
index c43f7fb764..76ff68747a 100644
--- a/include/deal.II/base/function_tools.h
+++ b/include/deal.II/base/function_tools.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/geometry_info.h b/include/deal.II/base/geometry_info.h
index c56482e72a..864b338285 100644
--- a/include/deal.II/base/geometry_info.h
+++ b/include/deal.II/base/geometry_info.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/hdf5.h b/include/deal.II/base/hdf5.h
index 9ab994f817..c86eae1e57 100644
--- a/include/deal.II/base/hdf5.h
+++ b/include/deal.II/base/hdf5.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/incremental_function.h b/include/deal.II/base/incremental_function.h
index 3117857a1f..cf23251ed9 100644
--- a/include/deal.II/base/incremental_function.h
+++ b/include/deal.II/base/incremental_function.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/index_set.h b/include/deal.II/base/index_set.h
index 9605490868..ffdf8f5376 100644
--- a/include/deal.II/base/index_set.h
+++ b/include/deal.II/base/index_set.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2023 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/job_identifier.h b/include/deal.II/base/job_identifier.h
index 33b0ea8b31..e471ac36c7 100644
--- a/include/deal.II/base/job_identifier.h
+++ b/include/deal.II/base/job_identifier.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/lazy.h b/include/deal.II/base/lazy.h
index 712f229e47..ec17f5145b 100644
--- a/include/deal.II/base/lazy.h
+++ b/include/deal.II/base/lazy.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 - 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/logstream.h b/include/deal.II/base/logstream.h
index 3b1a0ec833..4365bee70a 100644
--- a/include/deal.II/base/logstream.h
+++ b/include/deal.II/base/logstream.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/memory_consumption.h b/include/deal.II/base/memory_consumption.h
index 0f2f362925..e864d56f44 100644
--- a/include/deal.II/base/memory_consumption.h
+++ b/include/deal.II/base/memory_consumption.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/mg_level_object.h b/include/deal.II/base/mg_level_object.h
index 3aec38ea92..c26c33d31d 100644
--- a/include/deal.II/base/mg_level_object.h
+++ b/include/deal.II/base/mg_level_object.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/mpi.h b/include/deal.II/base/mpi.h
index 67a23a047a..552457e369 100644
--- a/include/deal.II/base/mpi.h
+++ b/include/deal.II/base/mpi.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2023 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/mpi_compute_index_owner_internal.h b/include/deal.II/base/mpi_compute_index_owner_internal.h
index bda62b0f12..308039d7ee 100644
--- a/include/deal.II/base/mpi_compute_index_owner_internal.h
+++ b/include/deal.II/base/mpi_compute_index_owner_internal.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/mpi_large_count.h b/include/deal.II/base/mpi_large_count.h
index a4fc0d5472..67361ed6de 100644
--- a/include/deal.II/base/mpi_large_count.h
+++ b/include/deal.II/base/mpi_large_count.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/mpi_noncontiguous_partitioner.templates.h b/include/deal.II/base/mpi_noncontiguous_partitioner.templates.h
index 56f256b3fc..4e7eb1f0b0 100644
--- a/include/deal.II/base/mpi_noncontiguous_partitioner.templates.h
+++ b/include/deal.II/base/mpi_noncontiguous_partitioner.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/mu_parser_internal.h b/include/deal.II/base/mu_parser_internal.h
index 82b01f5837..1f34a7b5cb 100644
--- a/include/deal.II/base/mu_parser_internal.h
+++ b/include/deal.II/base/mu_parser_internal.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/numbers.h b/include/deal.II/base/numbers.h
index 85caa72642..fd104d7b91 100644
--- a/include/deal.II/base/numbers.h
+++ b/include/deal.II/base/numbers.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2023 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/parsed_function.h b/include/deal.II/base/parsed_function.h
index 9729307007..2434fbd5a1 100644
--- a/include/deal.II/base/parsed_function.h
+++ b/include/deal.II/base/parsed_function.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/partitioner.templates.h b/include/deal.II/base/partitioner.templates.h
index c4643a6d06..a63fc627d0 100644
--- a/include/deal.II/base/partitioner.templates.h
+++ b/include/deal.II/base/partitioner.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/path_search.h b/include/deal.II/base/path_search.h
index d5e217c8c6..3b05f24823 100644
--- a/include/deal.II/base/path_search.h
+++ b/include/deal.II/base/path_search.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/point.h b/include/deal.II/base/point.h
index ec31662b7f..460f9d09c6 100644
--- a/include/deal.II/base/point.h
+++ b/include/deal.II/base/point.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/polynomial_space.h b/include/deal.II/base/polynomial_space.h
index fc2b473925..16b3f4913b 100644
--- a/include/deal.II/base/polynomial_space.h
+++ b/include/deal.II/base/polynomial_space.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2023 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/polynomials_adini.h b/include/deal.II/base/polynomials_adini.h
index 22aa9af823..3c49dc38d6 100644
--- a/include/deal.II/base/polynomials_adini.h
+++ b/include/deal.II/base/polynomials_adini.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2023 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/polynomials_barycentric.h b/include/deal.II/base/polynomials_barycentric.h
index b716510a73..29e6bd3eec 100644
--- a/include/deal.II/base/polynomials_barycentric.h
+++ b/include/deal.II/base/polynomials_barycentric.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/polynomials_integrated_legendre_sz.h b/include/deal.II/base/polynomials_integrated_legendre_sz.h
index 0aa37b2201..f20087ef2b 100644
--- a/include/deal.II/base/polynomials_integrated_legendre_sz.h
+++ b/include/deal.II/base/polynomials_integrated_legendre_sz.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/polynomials_pyramid.h b/include/deal.II/base/polynomials_pyramid.h
index 5e07e6239a..457cf73891 100644
--- a/include/deal.II/base/polynomials_pyramid.h
+++ b/include/deal.II/base/polynomials_pyramid.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/polynomials_rannacher_turek.h b/include/deal.II/base/polynomials_rannacher_turek.h
index 361a804b9f..246a9bcb83 100644
--- a/include/deal.II/base/polynomials_rannacher_turek.h
+++ b/include/deal.II/base/polynomials_rannacher_turek.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/polynomials_wedge.h b/include/deal.II/base/polynomials_wedge.h
index d39c0f39f7..47b34e6726 100644
--- a/include/deal.II/base/polynomials_wedge.h
+++ b/include/deal.II/base/polynomials_wedge.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/scalar_polynomials_base.h b/include/deal.II/base/scalar_polynomials_base.h
index 0b52a07cac..d7019577ac 100644
--- a/include/deal.II/base/scalar_polynomials_base.h
+++ b/include/deal.II/base/scalar_polynomials_base.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/smartpointer.h b/include/deal.II/base/smartpointer.h
index f37d36eb12..09d846e5b2 100644
--- a/include/deal.II/base/smartpointer.h
+++ b/include/deal.II/base/smartpointer.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/std_cxx17/cmath.h b/include/deal.II/base/std_cxx17/cmath.h
index 2e4d3dc777..52c2948a32 100644
--- a/include/deal.II/base/std_cxx17/cmath.h
+++ b/include/deal.II/base/std_cxx17/cmath.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/std_cxx17/optional.h b/include/deal.II/base/std_cxx17/optional.h
index 2653eeab35..27a692be02 100644
--- a/include/deal.II/base/std_cxx17/optional.h
+++ b/include/deal.II/base/std_cxx17/optional.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/std_cxx17/tuple.h b/include/deal.II/base/std_cxx17/tuple.h
index a43e54df05..e2caccc51a 100644
--- a/include/deal.II/base/std_cxx17/tuple.h
+++ b/include/deal.II/base/std_cxx17/tuple.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/subscriptor.h b/include/deal.II/base/subscriptor.h
index 776afcfa1e..2cbc19d9a1 100644
--- a/include/deal.II/base/subscriptor.h
+++ b/include/deal.II/base/subscriptor.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/symbolic_function.h b/include/deal.II/base/symbolic_function.h
index 0e3728c3aa..4ee63c46b4 100644
--- a/include/deal.II/base/symbolic_function.h
+++ b/include/deal.II/base/symbolic_function.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/symbolic_function.templates.h b/include/deal.II/base/symbolic_function.templates.h
index e1e8a136e8..f6f40ae60e 100644
--- a/include/deal.II/base/symbolic_function.templates.h
+++ b/include/deal.II/base/symbolic_function.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/symmetric_tensor.h b/include/deal.II/base/symmetric_tensor.h
index 9f12be21fd..f3c8410117 100644
--- a/include/deal.II/base/symmetric_tensor.h
+++ b/include/deal.II/base/symmetric_tensor.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/symmetric_tensor.templates.h b/include/deal.II/base/symmetric_tensor.templates.h
index c246c9f350..cb2886d374 100644
--- a/include/deal.II/base/symmetric_tensor.templates.h
+++ b/include/deal.II/base/symmetric_tensor.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/table.h b/include/deal.II/base/table.h
index 31ff756a81..04c5192f33 100644
--- a/include/deal.II/base/table.h
+++ b/include/deal.II/base/table.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2023 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/table_handler.h b/include/deal.II/base/table_handler.h
index b354a893fa..600d819639 100644
--- a/include/deal.II/base/table_handler.h
+++ b/include/deal.II/base/table_handler.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/template_constraints.h b/include/deal.II/base/template_constraints.h
index 45f240ec88..f84ea92456 100644
--- a/include/deal.II/base/template_constraints.h
+++ b/include/deal.II/base/template_constraints.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/tensor.h b/include/deal.II/base/tensor.h
index 2d5e78e495..1f9f2088af 100644
--- a/include/deal.II/base/tensor.h
+++ b/include/deal.II/base/tensor.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/tensor_accessors.h b/include/deal.II/base/tensor_accessors.h
index ccfd508645..95fef57fc4 100644
--- a/include/deal.II/base/tensor_accessors.h
+++ b/include/deal.II/base/tensor_accessors.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/tensor_function.h b/include/deal.II/base/tensor_function.h
index a297223cbb..1f33f068ac 100644
--- a/include/deal.II/base/tensor_function.h
+++ b/include/deal.II/base/tensor_function.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2020 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/tensor_function.templates.h b/include/deal.II/base/tensor_function.templates.h
index 5fb98b2080..03ce0439e9 100644
--- a/include/deal.II/base/tensor_function.templates.h
+++ b/include/deal.II/base/tensor_function.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2019 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/tensor_function_parser.h b/include/deal.II/base/tensor_function_parser.h
index 7c935e5b07..5f9b32ab62 100644
--- a/include/deal.II/base/tensor_function_parser.h
+++ b/include/deal.II/base/tensor_function_parser.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/tensor_polynomials_base.h b/include/deal.II/base/tensor_polynomials_base.h
index d423be18a1..b33da44baf 100644
--- a/include/deal.II/base/tensor_polynomials_base.h
+++ b/include/deal.II/base/tensor_polynomials_base.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/tensor_product_polynomials.h b/include/deal.II/base/tensor_product_polynomials.h
index 760700bf14..0fd08fd50b 100644
--- a/include/deal.II/base/tensor_product_polynomials.h
+++ b/include/deal.II/base/tensor_product_polynomials.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/tensor_product_polynomials_bubbles.h b/include/deal.II/base/tensor_product_polynomials_bubbles.h
index 6c62ba7e5d..5c3038ff83 100644
--- a/include/deal.II/base/tensor_product_polynomials_bubbles.h
+++ b/include/deal.II/base/tensor_product_polynomials_bubbles.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/tensor_product_polynomials_const.h b/include/deal.II/base/tensor_product_polynomials_const.h
index 8b1f32cde7..4b06e79946 100644
--- a/include/deal.II/base/tensor_product_polynomials_const.h
+++ b/include/deal.II/base/tensor_product_polynomials_const.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/thread_local_storage.h b/include/deal.II/base/thread_local_storage.h
index adb180e43f..ded6d6028b 100644
--- a/include/deal.II/base/thread_local_storage.h
+++ b/include/deal.II/base/thread_local_storage.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/time_stepping.templates.h b/include/deal.II/base/time_stepping.templates.h
index e199f1ffc5..a7ac2e1954 100644
--- a/include/deal.II/base/time_stepping.templates.h
+++ b/include/deal.II/base/time_stepping.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/utilities.h b/include/deal.II/base/utilities.h
index ac56967ac1..9d0d1ca844 100644
--- a/include/deal.II/base/utilities.h
+++ b/include/deal.II/base/utilities.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/base/vectorization.h b/include/deal.II/base/vectorization.h
index 4299fa045b..ebe57cfc24 100644
--- a/include/deal.II/base/vectorization.h
+++ b/include/deal.II/base/vectorization.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2023 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/boost_adaptors/point.h b/include/deal.II/boost_adaptors/point.h
index 4eee748f7d..68064f93b0 100644
--- a/include/deal.II/boost_adaptors/point.h
+++ b/include/deal.II/boost_adaptors/point.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/cgal/intersections.h b/include/deal.II/cgal/intersections.h
index f9ef1757e7..d0aaf97a82 100644
--- a/include/deal.II/cgal/intersections.h
+++ b/include/deal.II/cgal/intersections.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/cgal/point_conversion.h b/include/deal.II/cgal/point_conversion.h
index fb59e0d032..ee6104662b 100644
--- a/include/deal.II/cgal/point_conversion.h
+++ b/include/deal.II/cgal/point_conversion.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/cgal/triangulation.h b/include/deal.II/cgal/triangulation.h
index bbfef45533..016a2916d0 100644
--- a/include/deal.II/cgal/triangulation.h
+++ b/include/deal.II/cgal/triangulation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/cgal/utilities.h b/include/deal.II/cgal/utilities.h
index 63751b0e65..0fc6f99b47 100644
--- a/include/deal.II/cgal/utilities.h
+++ b/include/deal.II/cgal/utilities.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/differentiation/ad/adolc_number_types.h b/include/deal.II/differentiation/ad/adolc_number_types.h
index 3c7dd50e5c..ffef0104ae 100644
--- a/include/deal.II/differentiation/ad/adolc_number_types.h
+++ b/include/deal.II/differentiation/ad/adolc_number_types.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/differentiation/sd/symengine_math.h b/include/deal.II/differentiation/sd/symengine_math.h
index 3e06f7c3b1..fc40f50388 100644
--- a/include/deal.II/differentiation/sd/symengine_math.h
+++ b/include/deal.II/differentiation/sd/symengine_math.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/differentiation/sd/symengine_number_types.h b/include/deal.II/differentiation/sd/symengine_number_types.h
index 1dc470a708..38ec2826b2 100644
--- a/include/deal.II/differentiation/sd/symengine_number_types.h
+++ b/include/deal.II/differentiation/sd/symengine_number_types.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/differentiation/sd/symengine_product_types.h b/include/deal.II/differentiation/sd/symengine_product_types.h
index 5161fd41f0..42bae2c6e9 100644
--- a/include/deal.II/differentiation/sd/symengine_product_types.h
+++ b/include/deal.II/differentiation/sd/symengine_product_types.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/differentiation/sd/symengine_scalar_operations.h b/include/deal.II/differentiation/sd/symengine_scalar_operations.h
index df8245f23d..034c58dea4 100644
--- a/include/deal.II/differentiation/sd/symengine_scalar_operations.h
+++ b/include/deal.II/differentiation/sd/symengine_scalar_operations.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/differentiation/sd/symengine_tensor_operations.h b/include/deal.II/differentiation/sd/symengine_tensor_operations.h
index 7705626e1c..759c478938 100644
--- a/include/deal.II/differentiation/sd/symengine_tensor_operations.h
+++ b/include/deal.II/differentiation/sd/symengine_tensor_operations.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/differentiation/sd/symengine_utilities.h b/include/deal.II/differentiation/sd/symengine_utilities.h
index 02bb3092ed..3beb3ec475 100644
--- a/include/deal.II/differentiation/sd/symengine_utilities.h
+++ b/include/deal.II/differentiation/sd/symengine_utilities.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/distributed/cell_data_transfer.h b/include/deal.II/distributed/cell_data_transfer.h
index d547c6daed..d8ab3f2180 100644
--- a/include/deal.II/distributed/cell_data_transfer.h
+++ b/include/deal.II/distributed/cell_data_transfer.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/distributed/cell_data_transfer.templates.h b/include/deal.II/distributed/cell_data_transfer.templates.h
index 3a7691810c..d3d40e7051 100644
--- a/include/deal.II/distributed/cell_data_transfer.templates.h
+++ b/include/deal.II/distributed/cell_data_transfer.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/distributed/cell_weights.h b/include/deal.II/distributed/cell_weights.h
index a006266296..da1f88490f 100644
--- a/include/deal.II/distributed/cell_weights.h
+++ b/include/deal.II/distributed/cell_weights.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/distributed/repartitioning_policy_tools.h b/include/deal.II/distributed/repartitioning_policy_tools.h
index ecc435b47e..13f0e07b10 100644
--- a/include/deal.II/distributed/repartitioning_policy_tools.h
+++ b/include/deal.II/distributed/repartitioning_policy_tools.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/distributed/solution_transfer.h b/include/deal.II/distributed/solution_transfer.h
index ed711c0a63..1970227517 100644
--- a/include/deal.II/distributed/solution_transfer.h
+++ b/include/deal.II/distributed/solution_transfer.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/distributed/tria.h b/include/deal.II/distributed/tria.h
index 908f17835b..ea42166108 100644
--- a/include/deal.II/distributed/tria.h
+++ b/include/deal.II/distributed/tria.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/dofs/dof_accessor.templates.h b/include/deal.II/dofs/dof_accessor.templates.h
index 59f063d2fc..b939fc83ab 100644
--- a/include/deal.II/dofs/dof_accessor.templates.h
+++ b/include/deal.II/dofs/dof_accessor.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/block_mask.h b/include/deal.II/fe/block_mask.h
index a728880fbd..9dde8c3c71 100644
--- a/include/deal.II/fe/block_mask.h
+++ b/include/deal.II/fe/block_mask.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/component_mask.h b/include/deal.II/fe/component_mask.h
index c8f6833960..1eeebaf557 100644
--- a/include/deal.II/fe/component_mask.h
+++ b/include/deal.II/fe/component_mask.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_bernardi_raugel.h b/include/deal.II/fe/fe_bernardi_raugel.h
index 25321277e1..2dc1fa5dd3 100644
--- a/include/deal.II/fe/fe_bernardi_raugel.h
+++ b/include/deal.II/fe/fe_bernardi_raugel.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_bernstein.h b/include/deal.II/fe/fe_bernstein.h
index 5c1608d1f1..7f8d66764a 100644
--- a/include/deal.II/fe/fe_bernstein.h
+++ b/include/deal.II/fe/fe_bernstein.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_data.h b/include/deal.II/fe/fe_data.h
index 99c87db261..c9f70e1695 100644
--- a/include/deal.II/fe/fe_data.h
+++ b/include/deal.II/fe/fe_data.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_dg_vector.templates.h b/include/deal.II/fe/fe_dg_vector.templates.h
index 1b1a2c128a..c13b8c041b 100644
--- a/include/deal.II/fe/fe_dg_vector.templates.h
+++ b/include/deal.II/fe/fe_dg_vector.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_dgp_nonparametric.h b/include/deal.II/fe/fe_dgp_nonparametric.h
index 091f125e4e..61dab2257f 100644
--- a/include/deal.II/fe/fe_dgp_nonparametric.h
+++ b/include/deal.II/fe/fe_dgp_nonparametric.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_enriched.h b/include/deal.II/fe/fe_enriched.h
index 51f71aa295..1e94beef5b 100644
--- a/include/deal.II/fe/fe_enriched.h
+++ b/include/deal.II/fe/fe_enriched.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_face.h b/include/deal.II/fe/fe_face.h
index 66af223173..376d32af79 100644
--- a/include/deal.II/fe/fe_face.h
+++ b/include/deal.II/fe/fe_face.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2023 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_nedelec_sz.h b/include/deal.II/fe/fe_nedelec_sz.h
index 234fbe9672..4f1b5ebfe4 100644
--- a/include/deal.II/fe/fe_nedelec_sz.h
+++ b/include/deal.II/fe/fe_nedelec_sz.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2023 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_nothing.h b/include/deal.II/fe/fe_nothing.h
index f94f133ce6..fd6358b797 100644
--- a/include/deal.II/fe/fe_nothing.h
+++ b/include/deal.II/fe/fe_nothing.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_poly.h b/include/deal.II/fe/fe_poly.h
index 8f980f1636..0884f3c46f 100644
--- a/include/deal.II/fe/fe_poly.h
+++ b/include/deal.II/fe/fe_poly.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_poly.templates.h b/include/deal.II/fe/fe_poly.templates.h
index b459d4f83e..996eab83b2 100644
--- a/include/deal.II/fe/fe_poly.templates.h
+++ b/include/deal.II/fe/fe_poly.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_poly_face.h b/include/deal.II/fe/fe_poly_face.h
index f0010d547a..cd4d390c97 100644
--- a/include/deal.II/fe/fe_poly_face.h
+++ b/include/deal.II/fe/fe_poly_face.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_poly_face.templates.h b/include/deal.II/fe/fe_poly_face.templates.h
index 9bf66563cf..4ca61dd147 100644
--- a/include/deal.II/fe/fe_poly_face.templates.h
+++ b/include/deal.II/fe/fe_poly_face.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_q_iso_q1.h b/include/deal.II/fe/fe_q_iso_q1.h
index 66623ed8d7..17a76dbf8c 100644
--- a/include/deal.II/fe/fe_q_iso_q1.h
+++ b/include/deal.II/fe/fe_q_iso_q1.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_tools.templates.h b/include/deal.II/fe/fe_tools.templates.h
index 45ce2aca81..92d4d41325 100644
--- a/include/deal.II/fe/fe_tools.templates.h
+++ b/include/deal.II/fe/fe_tools.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_tools_extrapolate.templates.h b/include/deal.II/fe/fe_tools_extrapolate.templates.h
index 585ca57de1..5510c10067 100644
--- a/include/deal.II/fe/fe_tools_extrapolate.templates.h
+++ b/include/deal.II/fe/fe_tools_extrapolate.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_tools_interpolate.templates.h b/include/deal.II/fe/fe_tools_interpolate.templates.h
index db8defde82..56816f1a9f 100644
--- a/include/deal.II/fe/fe_tools_interpolate.templates.h
+++ b/include/deal.II/fe/fe_tools_interpolate.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_values_extractors.h b/include/deal.II/fe/fe_values_extractors.h
index 2224a30da3..a8c59521dd 100644
--- a/include/deal.II/fe/fe_values_extractors.h
+++ b/include/deal.II/fe/fe_values_extractors.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/fe_values_views.h b/include/deal.II/fe/fe_values_views.h
index 9afe26be20..1047b6311f 100644
--- a/include/deal.II/fe/fe_values_views.h
+++ b/include/deal.II/fe/fe_values_views.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/mapping_c1.h b/include/deal.II/fe/mapping_c1.h
index f8dd44a00e..79446f6734 100644
--- a/include/deal.II/fe/mapping_c1.h
+++ b/include/deal.II/fe/mapping_c1.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/mapping_cartesian.h b/include/deal.II/fe/mapping_cartesian.h
index ce9fc464a1..5bae0b46eb 100644
--- a/include/deal.II/fe/mapping_cartesian.h
+++ b/include/deal.II/fe/mapping_cartesian.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/mapping_fe_field.h b/include/deal.II/fe/mapping_fe_field.h
index 31b0c73490..3c95b5d95b 100644
--- a/include/deal.II/fe/mapping_fe_field.h
+++ b/include/deal.II/fe/mapping_fe_field.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/mapping_manifold.h b/include/deal.II/fe/mapping_manifold.h
index 13e061fde5..39d9f7bcb0 100644
--- a/include/deal.II/fe/mapping_manifold.h
+++ b/include/deal.II/fe/mapping_manifold.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/mapping_q1_eulerian.h b/include/deal.II/fe/mapping_q1_eulerian.h
index 7b5856daaa..f79f712c51 100644
--- a/include/deal.II/fe/mapping_q1_eulerian.h
+++ b/include/deal.II/fe/mapping_q1_eulerian.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/mapping_q_eulerian.h b/include/deal.II/fe/mapping_q_eulerian.h
index ab8e399536..c006c1e698 100644
--- a/include/deal.II/fe/mapping_q_eulerian.h
+++ b/include/deal.II/fe/mapping_q_eulerian.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/fe/mapping_q_internal.h b/include/deal.II/fe/mapping_q_internal.h
index 3db783ad85..3258194dab 100644
--- a/include/deal.II/fe/mapping_q_internal.h
+++ b/include/deal.II/fe/mapping_q_internal.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/gmsh/utilities.h b/include/deal.II/gmsh/utilities.h
index a3e9461e7d..4bd51a3de7 100644
--- a/include/deal.II/gmsh/utilities.h
+++ b/include/deal.II/gmsh/utilities.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/connectivity.h b/include/deal.II/grid/connectivity.h
index 6d8f653b2c..09cc0bb32f 100644
--- a/include/deal.II/grid/connectivity.h
+++ b/include/deal.II/grid/connectivity.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/grid_generator.h b/include/deal.II/grid/grid_generator.h
index 2f9e4fb191..e83e77dc7c 100644
--- a/include/deal.II/grid/grid_generator.h
+++ b/include/deal.II/grid/grid_generator.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/grid_tools.h b/include/deal.II/grid/grid_tools.h
index 89c3457aaf..9b3c7dda09 100644
--- a/include/deal.II/grid/grid_tools.h
+++ b/include/deal.II/grid/grid_tools.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/grid_tools_cache.h b/include/deal.II/grid/grid_tools_cache.h
index 3cef49f18b..2eaecfc2e7 100644
--- a/include/deal.II/grid/grid_tools_cache.h
+++ b/include/deal.II/grid/grid_tools_cache.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/grid_tools_cache_update_flags.h b/include/deal.II/grid/grid_tools_cache_update_flags.h
index 55f85fd711..c60f2ed232 100644
--- a/include/deal.II/grid/grid_tools_cache_update_flags.h
+++ b/include/deal.II/grid/grid_tools_cache_update_flags.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/grid_tools_geometry.h b/include/deal.II/grid/grid_tools_geometry.h
index 2214660cdc..28424eb10f 100644
--- a/include/deal.II/grid/grid_tools_geometry.h
+++ b/include/deal.II/grid/grid_tools_geometry.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/manifold.h b/include/deal.II/grid/manifold.h
index 53b8cf4252..76ff72635d 100644
--- a/include/deal.II/grid/manifold.h
+++ b/include/deal.II/grid/manifold.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/persistent_tria.h b/include/deal.II/grid/persistent_tria.h
index a584f15702..bf90e3a392 100644
--- a/include/deal.II/grid/persistent_tria.h
+++ b/include/deal.II/grid/persistent_tria.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/reference_cell.h b/include/deal.II/grid/reference_cell.h
index 0cf6bc98c8..73a835a3b3 100644
--- a/include/deal.II/grid/reference_cell.h
+++ b/include/deal.II/grid/reference_cell.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/tensor_product_manifold.h b/include/deal.II/grid/tensor_product_manifold.h
index c9a4d35d96..7f7cd113b8 100644
--- a/include/deal.II/grid/tensor_product_manifold.h
+++ b/include/deal.II/grid/tensor_product_manifold.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/tria_accessor.h b/include/deal.II/grid/tria_accessor.h
index 600dfbf5a8..d0996f9214 100644
--- a/include/deal.II/grid/tria_accessor.h
+++ b/include/deal.II/grid/tria_accessor.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/tria_accessor.templates.h b/include/deal.II/grid/tria_accessor.templates.h
index 307a7b74de..5b7924cedf 100644
--- a/include/deal.II/grid/tria_accessor.templates.h
+++ b/include/deal.II/grid/tria_accessor.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/tria_description.h b/include/deal.II/grid/tria_description.h
index 54518f5f7e..0dc3fff902 100644
--- a/include/deal.II/grid/tria_description.h
+++ b/include/deal.II/grid/tria_description.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/grid/tria_iterator.templates.h b/include/deal.II/grid/tria_iterator.templates.h
index 0acc07658a..0fc980a86c 100644
--- a/include/deal.II/grid/tria_iterator.templates.h
+++ b/include/deal.II/grid/tria_iterator.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/hp/collection.h b/include/deal.II/hp/collection.h
index e6374a96af..0bb9eb82a4 100644
--- a/include/deal.II/hp/collection.h
+++ b/include/deal.II/hp/collection.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/hp/q_collection.h b/include/deal.II/hp/q_collection.h
index f7f50dbde8..aaa5cdc743 100644
--- a/include/deal.II/hp/q_collection.h
+++ b/include/deal.II/hp/q_collection.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/integrators/advection.h b/include/deal.II/integrators/advection.h
index 3575052709..32cd6154aa 100644
--- a/include/deal.II/integrators/advection.h
+++ b/include/deal.II/integrators/advection.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/integrators/divergence.h b/include/deal.II/integrators/divergence.h
index b17793d828..8e85c097d8 100644
--- a/include/deal.II/integrators/divergence.h
+++ b/include/deal.II/integrators/divergence.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/integrators/elasticity.h b/include/deal.II/integrators/elasticity.h
index a404edfa68..110a85e3f4 100644
--- a/include/deal.II/integrators/elasticity.h
+++ b/include/deal.II/integrators/elasticity.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/integrators/grad_div.h b/include/deal.II/integrators/grad_div.h
index fffeb7839e..c80a421818 100644
--- a/include/deal.II/integrators/grad_div.h
+++ b/include/deal.II/integrators/grad_div.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/integrators/laplace.h b/include/deal.II/integrators/laplace.h
index 88a099d64e..a164f6abe2 100644
--- a/include/deal.II/integrators/laplace.h
+++ b/include/deal.II/integrators/laplace.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/integrators/maxwell.h b/include/deal.II/integrators/maxwell.h
index 1d923ab954..b7d0e020b8 100644
--- a/include/deal.II/integrators/maxwell.h
+++ b/include/deal.II/integrators/maxwell.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2023 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/integrators/patches.h b/include/deal.II/integrators/patches.h
index 523a16d2dd..e29e3c94f6 100644
--- a/include/deal.II/integrators/patches.h
+++ b/include/deal.II/integrators/patches.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/affine_constraints.h b/include/deal.II/lac/affine_constraints.h
index 85d982c8c7..184be5b44d 100644
--- a/include/deal.II/lac/affine_constraints.h
+++ b/include/deal.II/lac/affine_constraints.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/affine_constraints.templates.h b/include/deal.II/lac/affine_constraints.templates.h
index 359196623f..f3445bf68f 100644
--- a/include/deal.II/lac/affine_constraints.templates.h
+++ b/include/deal.II/lac/affine_constraints.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/blas_extension_templates.h b/include/deal.II/lac/blas_extension_templates.h
index 178f8f852a..69485a22d3 100644
--- a/include/deal.II/lac/blas_extension_templates.h
+++ b/include/deal.II/lac/blas_extension_templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/block_linear_operator.h b/include/deal.II/lac/block_linear_operator.h
index 9c81e5612e..00af05ab6b 100644
--- a/include/deal.II/lac/block_linear_operator.h
+++ b/include/deal.II/lac/block_linear_operator.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2022 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/block_sparse_matrix.h b/include/deal.II/lac/block_sparse_matrix.h
index 3e958b25ce..945afd365a 100644
--- a/include/deal.II/lac/block_sparse_matrix.h
+++ b/include/deal.II/lac/block_sparse_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/block_sparse_matrix.templates.h b/include/deal.II/lac/block_sparse_matrix.templates.h
index 3044e5e61c..835664f8b5 100644
--- a/include/deal.II/lac/block_sparse_matrix.templates.h
+++ b/include/deal.II/lac/block_sparse_matrix.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/block_sparse_matrix_ez.h b/include/deal.II/lac/block_sparse_matrix_ez.h
index 90ff1058b6..988389bd0f 100644
--- a/include/deal.II/lac/block_sparse_matrix_ez.h
+++ b/include/deal.II/lac/block_sparse_matrix_ez.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/block_sparsity_pattern.h b/include/deal.II/lac/block_sparsity_pattern.h
index 6e5437b821..dcdf9a9b11 100644
--- a/include/deal.II/lac/block_sparsity_pattern.h
+++ b/include/deal.II/lac/block_sparsity_pattern.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/block_vector.templates.h b/include/deal.II/lac/block_vector.templates.h
index 3d6706f0e5..6b1147c722 100644
--- a/include/deal.II/lac/block_vector.templates.h
+++ b/include/deal.II/lac/block_vector.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2018 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/block_vector_base.h b/include/deal.II/lac/block_vector_base.h
index ffacac419f..b9dc72e048 100644
--- a/include/deal.II/lac/block_vector_base.h
+++ b/include/deal.II/lac/block_vector_base.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/chunk_sparse_matrix.templates.h b/include/deal.II/lac/chunk_sparse_matrix.templates.h
index df1e7b7749..4a5ed03b02 100644
--- a/include/deal.II/lac/chunk_sparse_matrix.templates.h
+++ b/include/deal.II/lac/chunk_sparse_matrix.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2022 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/constrained_linear_operator.h b/include/deal.II/lac/constrained_linear_operator.h
index 66cbef1586..2a82e00de3 100644
--- a/include/deal.II/lac/constrained_linear_operator.h
+++ b/include/deal.II/lac/constrained_linear_operator.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/diagonal_matrix.h b/include/deal.II/lac/diagonal_matrix.h
index a1fb633fb5..bf4b30239f 100644
--- a/include/deal.II/lac/diagonal_matrix.h
+++ b/include/deal.II/lac/diagonal_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/dynamic_sparsity_pattern.h b/include/deal.II/lac/dynamic_sparsity_pattern.h
index d949c5af96..a0514820a0 100644
--- a/include/deal.II/lac/dynamic_sparsity_pattern.h
+++ b/include/deal.II/lac/dynamic_sparsity_pattern.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/eigen.h b/include/deal.II/lac/eigen.h
index f1b2ad2d18..6ab5148e6f 100644
--- a/include/deal.II/lac/eigen.h
+++ b/include/deal.II/lac/eigen.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/generic_linear_algebra.h b/include/deal.II/lac/generic_linear_algebra.h
index cdeb2238c2..0fc05f7557 100644
--- a/include/deal.II/lac/generic_linear_algebra.h
+++ b/include/deal.II/lac/generic_linear_algebra.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/ginkgo_solver.h b/include/deal.II/lac/ginkgo_solver.h
index e425f2e0e5..f798de7fdc 100644
--- a/include/deal.II/lac/ginkgo_solver.h
+++ b/include/deal.II/lac/ginkgo_solver.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/householder.h b/include/deal.II/lac/householder.h
index 13ce9ce3e0..4365dffd5e 100644
--- a/include/deal.II/lac/householder.h
+++ b/include/deal.II/lac/householder.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/la_parallel_vector.h b/include/deal.II/lac/la_parallel_vector.h
index 8b39a745e9..b185f91f7d 100644
--- a/include/deal.II/lac/la_parallel_vector.h
+++ b/include/deal.II/lac/la_parallel_vector.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2023 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/la_parallel_vector.templates.h b/include/deal.II/lac/la_parallel_vector.templates.h
index 3d341e42a5..995255fe7b 100644
--- a/include/deal.II/lac/la_parallel_vector.templates.h
+++ b/include/deal.II/lac/la_parallel_vector.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2023 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/lapack_support.h b/include/deal.II/lac/lapack_support.h
index 4d2be1fd24..40faab356e 100644
--- a/include/deal.II/lac/lapack_support.h
+++ b/include/deal.II/lac/lapack_support.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/lapack_templates.h b/include/deal.II/lac/lapack_templates.h
index 9f1c2d36d4..4aad703648 100644
--- a/include/deal.II/lac/lapack_templates.h
+++ b/include/deal.II/lac/lapack_templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/linear_operator.h b/include/deal.II/lac/linear_operator.h
index 3fba7c475f..32b1205ed6 100644
--- a/include/deal.II/lac/linear_operator.h
+++ b/include/deal.II/lac/linear_operator.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/matrix_block.h b/include/deal.II/lac/matrix_block.h
index 86fc5a7ebf..cf583c337f 100644
--- a/include/deal.II/lac/matrix_block.h
+++ b/include/deal.II/lac/matrix_block.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2023 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/matrix_out.h b/include/deal.II/lac/matrix_out.h
index 236c947cc1..b102c02297 100644
--- a/include/deal.II/lac/matrix_out.h
+++ b/include/deal.II/lac/matrix_out.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/packaged_operation.h b/include/deal.II/lac/packaged_operation.h
index 810870752d..d17af377b3 100644
--- a/include/deal.II/lac/packaged_operation.h
+++ b/include/deal.II/lac/packaged_operation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/petsc_matrix_base.h b/include/deal.II/lac/petsc_matrix_base.h
index eaf5e17c15..6bca6c0475 100644
--- a/include/deal.II/lac/petsc_matrix_base.h
+++ b/include/deal.II/lac/petsc_matrix_base.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/petsc_solver.h b/include/deal.II/lac/petsc_solver.h
index ac95810089..149ec247cc 100644
--- a/include/deal.II/lac/petsc_solver.h
+++ b/include/deal.II/lac/petsc_solver.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/petsc_sparse_matrix.h b/include/deal.II/lac/petsc_sparse_matrix.h
index cac676de2e..ff69f16f22 100644
--- a/include/deal.II/lac/petsc_sparse_matrix.h
+++ b/include/deal.II/lac/petsc_sparse_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/petsc_vector.h b/include/deal.II/lac/petsc_vector.h
index c76a7c0435..5c7d798137 100644
--- a/include/deal.II/lac/petsc_vector.h
+++ b/include/deal.II/lac/petsc_vector.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/petsc_vector_base.h b/include/deal.II/lac/petsc_vector_base.h
index 1e7253ba69..2117edf30d 100644
--- a/include/deal.II/lac/petsc_vector_base.h
+++ b/include/deal.II/lac/petsc_vector_base.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/precondition.h b/include/deal.II/lac/precondition.h
index a5b3591a69..99d5bf9973 100644
--- a/include/deal.II/lac/precondition.h
+++ b/include/deal.II/lac/precondition.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/precondition_block.h b/include/deal.II/lac/precondition_block.h
index 475e28d9e2..60e73904f3 100644
--- a/include/deal.II/lac/precondition_block.h
+++ b/include/deal.II/lac/precondition_block.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/precondition_block.templates.h b/include/deal.II/lac/precondition_block.templates.h
index 220f5ba338..436ca9d514 100644
--- a/include/deal.II/lac/precondition_block.templates.h
+++ b/include/deal.II/lac/precondition_block.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2018 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/precondition_block_base.h b/include/deal.II/lac/precondition_block_base.h
index 4ec494d6d0..a1b1c9fb15 100644
--- a/include/deal.II/lac/precondition_block_base.h
+++ b/include/deal.II/lac/precondition_block_base.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2020 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/precondition_selector.h b/include/deal.II/lac/precondition_selector.h
index e2ffae0f41..90a903f89e 100644
--- a/include/deal.II/lac/precondition_selector.h
+++ b/include/deal.II/lac/precondition_selector.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/qr.h b/include/deal.II/lac/qr.h
index 81a6424c77..dfd128653c 100644
--- a/include/deal.II/lac/qr.h
+++ b/include/deal.II/lac/qr.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/read_write_vector.h b/include/deal.II/lac/read_write_vector.h
index 13603f9918..a2d9971bf4 100644
--- a/include/deal.II/lac/read_write_vector.h
+++ b/include/deal.II/lac/read_write_vector.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2023 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/read_write_vector.templates.h b/include/deal.II/lac/read_write_vector.templates.h
index f5ec41ac66..0b188272d1 100644
--- a/include/deal.II/lac/read_write_vector.templates.h
+++ b/include/deal.II/lac/read_write_vector.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2023 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/relaxation_block.h b/include/deal.II/lac/relaxation_block.h
index 7e5e175645..3cd04025f0 100644
--- a/include/deal.II/lac/relaxation_block.h
+++ b/include/deal.II/lac/relaxation_block.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2022 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/relaxation_block.templates.h b/include/deal.II/lac/relaxation_block.templates.h
index 5fbc9796c5..17a82c4766 100644
--- a/include/deal.II/lac/relaxation_block.templates.h
+++ b/include/deal.II/lac/relaxation_block.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/scalapack.templates.h b/include/deal.II/lac/scalapack.templates.h
index fa592e9d56..f852563076 100644
--- a/include/deal.II/lac/scalapack.templates.h
+++ b/include/deal.II/lac/scalapack.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver.h b/include/deal.II/lac/solver.h
index 317e92774c..688c0a087f 100644
--- a/include/deal.II/lac/solver.h
+++ b/include/deal.II/lac/solver.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_bicgstab.h b/include/deal.II/lac/solver_bicgstab.h
index a9ecab281c..61eaed08cf 100644
--- a/include/deal.II/lac/solver_bicgstab.h
+++ b/include/deal.II/lac/solver_bicgstab.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_cg.h b/include/deal.II/lac/solver_cg.h
index 2da1ef44b8..2e54d527e7 100644
--- a/include/deal.II/lac/solver_cg.h
+++ b/include/deal.II/lac/solver_cg.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_control.h b/include/deal.II/lac/solver_control.h
index c7e263507f..f75e3a7806 100644
--- a/include/deal.II/lac/solver_control.h
+++ b/include/deal.II/lac/solver_control.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_fire.h b/include/deal.II/lac/solver_fire.h
index e99cafa8c8..fc7bc08dfa 100644
--- a/include/deal.II/lac/solver_fire.h
+++ b/include/deal.II/lac/solver_fire.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_gmres.h b/include/deal.II/lac/solver_gmres.h
index 4ef8472bc1..195e4a47d4 100644
--- a/include/deal.II/lac/solver_gmres.h
+++ b/include/deal.II/lac/solver_gmres.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_idr.h b/include/deal.II/lac/solver_idr.h
index c4466df351..4bfdaac076 100644
--- a/include/deal.II/lac/solver_idr.h
+++ b/include/deal.II/lac/solver_idr.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_minres.h b/include/deal.II/lac/solver_minres.h
index 79f697d457..a235fcb470 100644
--- a/include/deal.II/lac/solver_minres.h
+++ b/include/deal.II/lac/solver_minres.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_qmrs.h b/include/deal.II/lac/solver_qmrs.h
index dd4f42753f..684f664e12 100644
--- a/include/deal.II/lac/solver_qmrs.h
+++ b/include/deal.II/lac/solver_qmrs.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_relaxation.h b/include/deal.II/lac/solver_relaxation.h
index a3ef785b79..b5d813be21 100644
--- a/include/deal.II/lac/solver_relaxation.h
+++ b/include/deal.II/lac/solver_relaxation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_richardson.h b/include/deal.II/lac/solver_richardson.h
index add3634f47..d0904accc9 100644
--- a/include/deal.II/lac/solver_richardson.h
+++ b/include/deal.II/lac/solver_richardson.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/solver_selector.h b/include/deal.II/lac/solver_selector.h
index 70a8c1a2d4..4b07c412b1 100644
--- a/include/deal.II/lac/solver_selector.h
+++ b/include/deal.II/lac/solver_selector.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_decomposition.templates.h b/include/deal.II/lac/sparse_decomposition.templates.h
index 89750ccf0c..8dd1b46deb 100644
--- a/include/deal.II/lac/sparse_decomposition.templates.h
+++ b/include/deal.II/lac/sparse_decomposition.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_direct.h b/include/deal.II/lac/sparse_direct.h
index ee3377723a..af13350113 100644
--- a/include/deal.II/lac/sparse_direct.h
+++ b/include/deal.II/lac/sparse_direct.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_ilu.h b/include/deal.II/lac/sparse_ilu.h
index 3cdca47653..18abce67a7 100644
--- a/include/deal.II/lac/sparse_ilu.h
+++ b/include/deal.II/lac/sparse_ilu.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_ilu.templates.h b/include/deal.II/lac/sparse_ilu.templates.h
index 795b325e0b..13ad17e47b 100644
--- a/include/deal.II/lac/sparse_ilu.templates.h
+++ b/include/deal.II/lac/sparse_ilu.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_matrix.templates.h b/include/deal.II/lac/sparse_matrix.templates.h
index 09b8fd8e3f..e8870b4a74 100644
--- a/include/deal.II/lac/sparse_matrix.templates.h
+++ b/include/deal.II/lac/sparse_matrix.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_matrix_ez.h b/include/deal.II/lac/sparse_matrix_ez.h
index ab0d0c2c48..8e1cd1f342 100644
--- a/include/deal.II/lac/sparse_matrix_ez.h
+++ b/include/deal.II/lac/sparse_matrix_ez.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_matrix_ez.templates.h b/include/deal.II/lac/sparse_matrix_ez.templates.h
index f40ff31fbd..c6158b58c8 100644
--- a/include/deal.II/lac/sparse_matrix_ez.templates.h
+++ b/include/deal.II/lac/sparse_matrix_ez.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_matrix_tools.h b/include/deal.II/lac/sparse_matrix_tools.h
index fac58460cc..b138de47af 100644
--- a/include/deal.II/lac/sparse_matrix_tools.h
+++ b/include/deal.II/lac/sparse_matrix_tools.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_vanka.h b/include/deal.II/lac/sparse_vanka.h
index 4f11daaab2..819b718419 100644
--- a/include/deal.II/lac/sparse_vanka.h
+++ b/include/deal.II/lac/sparse_vanka.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparse_vanka.templates.h b/include/deal.II/lac/sparse_vanka.templates.h
index 99c2f652ed..b03bf3405a 100644
--- a/include/deal.II/lac/sparse_vanka.templates.h
+++ b/include/deal.II/lac/sparse_vanka.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparsity_pattern.h b/include/deal.II/lac/sparsity_pattern.h
index 6e827a57b6..5808ea5ae3 100644
--- a/include/deal.II/lac/sparsity_pattern.h
+++ b/include/deal.II/lac/sparsity_pattern.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/sparsity_pattern_base.h b/include/deal.II/lac/sparsity_pattern_base.h
index a76a14fefd..62db554e12 100644
--- a/include/deal.II/lac/sparsity_pattern_base.h
+++ b/include/deal.II/lac/sparsity_pattern_base.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/tensor_product_matrix.h b/include/deal.II/lac/tensor_product_matrix.h
index 8727a97705..39ae98efb7 100644
--- a/include/deal.II/lac/tensor_product_matrix.h
+++ b/include/deal.II/lac/tensor_product_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/tridiagonal_matrix.h b/include/deal.II/lac/tridiagonal_matrix.h
index 2791c9f919..7320f17d0c 100644
--- a/include/deal.II/lac/tridiagonal_matrix.h
+++ b/include/deal.II/lac/tridiagonal_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_block_sparse_matrix.h b/include/deal.II/lac/trilinos_block_sparse_matrix.h
index 32df581377..86c3ebdc4d 100644
--- a/include/deal.II/lac/trilinos_block_sparse_matrix.h
+++ b/include/deal.II/lac/trilinos_block_sparse_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_index_access.h b/include/deal.II/lac/trilinos_index_access.h
index 88404ee59b..26208031cc 100644
--- a/include/deal.II/lac/trilinos_index_access.h
+++ b/include/deal.II/lac/trilinos_index_access.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_linear_operator.h b/include/deal.II/lac/trilinos_linear_operator.h
index 71957d1a07..a690807682 100644
--- a/include/deal.II/lac/trilinos_linear_operator.h
+++ b/include/deal.II/lac/trilinos_linear_operator.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_solver.h b/include/deal.II/lac/trilinos_solver.h
index 631c4145cc..b21f09c30d 100644
--- a/include/deal.II/lac/trilinos_solver.h
+++ b/include/deal.II/lac/trilinos_solver.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_sparse_matrix.h b/include/deal.II/lac/trilinos_sparse_matrix.h
index 487340f56e..7fd29cd253 100644
--- a/include/deal.II/lac/trilinos_sparse_matrix.h
+++ b/include/deal.II/lac/trilinos_sparse_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_sparsity_pattern.h b/include/deal.II/lac/trilinos_sparsity_pattern.h
index d745d4491f..4abc71314a 100644
--- a/include/deal.II/lac/trilinos_sparsity_pattern.h
+++ b/include/deal.II/lac/trilinos_sparsity_pattern.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_tpetra_sparse_matrix.h b/include/deal.II/lac/trilinos_tpetra_sparse_matrix.h
index 4cc053492f..48e4d40967 100644
--- a/include/deal.II/lac/trilinos_tpetra_sparse_matrix.h
+++ b/include/deal.II/lac/trilinos_tpetra_sparse_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_tpetra_sparse_matrix.templates.h b/include/deal.II/lac/trilinos_tpetra_sparse_matrix.templates.h
index 50e7aab6ae..0c90c07a64 100644
--- a/include/deal.II/lac/trilinos_tpetra_sparse_matrix.templates.h
+++ b/include/deal.II/lac/trilinos_tpetra_sparse_matrix.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_tpetra_sparsity_pattern.h b/include/deal.II/lac/trilinos_tpetra_sparsity_pattern.h
index 7a5fa3f51c..fd45494a0c 100644
--- a/include/deal.II/lac/trilinos_tpetra_sparsity_pattern.h
+++ b/include/deal.II/lac/trilinos_tpetra_sparsity_pattern.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_tpetra_vector.h b/include/deal.II/lac/trilinos_tpetra_vector.h
index c2a90e7210..c3d4163463 100644
--- a/include/deal.II/lac/trilinos_tpetra_vector.h
+++ b/include/deal.II/lac/trilinos_tpetra_vector.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_tpetra_vector.templates.h b/include/deal.II/lac/trilinos_tpetra_vector.templates.h
index 548c36e1a8..678c8b0049 100644
--- a/include/deal.II/lac/trilinos_tpetra_vector.templates.h
+++ b/include/deal.II/lac/trilinos_tpetra_vector.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/trilinos_vector.h b/include/deal.II/lac/trilinos_vector.h
index 440dacc539..ca2613e7fb 100644
--- a/include/deal.II/lac/trilinos_vector.h
+++ b/include/deal.II/lac/trilinos_vector.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/vector.h b/include/deal.II/lac/vector.h
index 92edce0202..2b4686541a 100644
--- a/include/deal.II/lac/vector.h
+++ b/include/deal.II/lac/vector.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/lac/vector.templates.h b/include/deal.II/lac/vector.templates.h
index 4dbc78bc32..dd2d835b64 100644
--- a/include/deal.II/lac/vector.templates.h
+++ b/include/deal.II/lac/vector.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/constraint_info.h b/include/deal.II/matrix_free/constraint_info.h
index 54b3433da0..da65ff8767 100644
--- a/include/deal.II/matrix_free/constraint_info.h
+++ b/include/deal.II/matrix_free/constraint_info.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/cuda_fe_evaluation.h b/include/deal.II/matrix_free/cuda_fe_evaluation.h
index 81474b1409..82b295a384 100644
--- a/include/deal.II/matrix_free/cuda_fe_evaluation.h
+++ b/include/deal.II/matrix_free/cuda_fe_evaluation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/cuda_hanging_nodes_internal.h b/include/deal.II/matrix_free/cuda_hanging_nodes_internal.h
index 858ea39d55..5b75a278b8 100644
--- a/include/deal.II/matrix_free/cuda_hanging_nodes_internal.h
+++ b/include/deal.II/matrix_free/cuda_hanging_nodes_internal.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/cuda_matrix_free.h b/include/deal.II/matrix_free/cuda_matrix_free.h
index 67dd8dbecb..864313e9c3 100644
--- a/include/deal.II/matrix_free/cuda_matrix_free.h
+++ b/include/deal.II/matrix_free/cuda_matrix_free.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/cuda_matrix_free.templates.h b/include/deal.II/matrix_free/cuda_matrix_free.templates.h
index 98fa41e935..37533c1c7f 100644
--- a/include/deal.II/matrix_free/cuda_matrix_free.templates.h
+++ b/include/deal.II/matrix_free/cuda_matrix_free.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/cuda_tensor_product_kernels.h b/include/deal.II/matrix_free/cuda_tensor_product_kernels.h
index ee9af7803e..7125ab0de8 100644
--- a/include/deal.II/matrix_free/cuda_tensor_product_kernels.h
+++ b/include/deal.II/matrix_free/cuda_tensor_product_kernels.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/dof_info.templates.h b/include/deal.II/matrix_free/dof_info.templates.h
index 033bf476f3..1e7725fc55 100644
--- a/include/deal.II/matrix_free/dof_info.templates.h
+++ b/include/deal.II/matrix_free/dof_info.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/evaluation_flags.h b/include/deal.II/matrix_free/evaluation_flags.h
index 290c7a34f3..2667b4da69 100644
--- a/include/deal.II/matrix_free/evaluation_flags.h
+++ b/include/deal.II/matrix_free/evaluation_flags.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/evaluation_kernels_face.h b/include/deal.II/matrix_free/evaluation_kernels_face.h
index 6ffba4231c..38bb63b227 100644
--- a/include/deal.II/matrix_free/evaluation_kernels_face.h
+++ b/include/deal.II/matrix_free/evaluation_kernels_face.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/evaluation_kernels_hanging_nodes.h b/include/deal.II/matrix_free/evaluation_kernels_hanging_nodes.h
index 5dc2d9c0d5..95dc1b5085 100644
--- a/include/deal.II/matrix_free/evaluation_kernels_hanging_nodes.h
+++ b/include/deal.II/matrix_free/evaluation_kernels_hanging_nodes.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/evaluation_template_face_factory.templates.h b/include/deal.II/matrix_free/evaluation_template_face_factory.templates.h
index 608d03e1b6..3c736274ce 100644
--- a/include/deal.II/matrix_free/evaluation_template_face_factory.templates.h
+++ b/include/deal.II/matrix_free/evaluation_template_face_factory.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/evaluation_template_factory.h b/include/deal.II/matrix_free/evaluation_template_factory.h
index ac2d4f09d9..395cd23171 100644
--- a/include/deal.II/matrix_free/evaluation_template_factory.h
+++ b/include/deal.II/matrix_free/evaluation_template_factory.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/evaluation_template_factory_hanging_nodes.templates.h b/include/deal.II/matrix_free/evaluation_template_factory_hanging_nodes.templates.h
index aff84563c7..c1e273bfe5 100644
--- a/include/deal.II/matrix_free/evaluation_template_factory_hanging_nodes.templates.h
+++ b/include/deal.II/matrix_free/evaluation_template_factory_hanging_nodes.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/evaluation_template_factory_internal.h b/include/deal.II/matrix_free/evaluation_template_factory_internal.h
index ca0cb4f03f..c2bd81aa67 100644
--- a/include/deal.II/matrix_free/evaluation_template_factory_internal.h
+++ b/include/deal.II/matrix_free/evaluation_template_factory_internal.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/fe_evaluation.h b/include/deal.II/matrix_free/fe_evaluation.h
index ad32c9e623..87b947f8fd 100644
--- a/include/deal.II/matrix_free/fe_evaluation.h
+++ b/include/deal.II/matrix_free/fe_evaluation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2023 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/fe_point_evaluation.h b/include/deal.II/matrix_free/fe_point_evaluation.h
index ff197c6b40..8b420dfdb3 100644
--- a/include/deal.II/matrix_free/fe_point_evaluation.h
+++ b/include/deal.II/matrix_free/fe_point_evaluation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/fe_remote_evaluation.h b/include/deal.II/matrix_free/fe_remote_evaluation.h
index 0816d162f6..4389d0b2d6 100644
--- a/include/deal.II/matrix_free/fe_remote_evaluation.h
+++ b/include/deal.II/matrix_free/fe_remote_evaluation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/hanging_nodes_internal.h b/include/deal.II/matrix_free/hanging_nodes_internal.h
index 5b8bd3e907..677fa84ae9 100644
--- a/include/deal.II/matrix_free/hanging_nodes_internal.h
+++ b/include/deal.II/matrix_free/hanging_nodes_internal.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/mapping_info.templates.h b/include/deal.II/matrix_free/mapping_info.templates.h
index 882a2a5b1b..55fa526150 100644
--- a/include/deal.II/matrix_free/mapping_info.templates.h
+++ b/include/deal.II/matrix_free/mapping_info.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2023 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/mapping_info_storage.h b/include/deal.II/matrix_free/mapping_info_storage.h
index ed4da5e39f..49fb6746f1 100644
--- a/include/deal.II/matrix_free/mapping_info_storage.h
+++ b/include/deal.II/matrix_free/mapping_info_storage.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/mapping_info_storage.templates.h b/include/deal.II/matrix_free/mapping_info_storage.templates.h
index a30e475533..bfc6edef21 100644
--- a/include/deal.II/matrix_free/mapping_info_storage.templates.h
+++ b/include/deal.II/matrix_free/mapping_info_storage.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/portable_fe_evaluation.h b/include/deal.II/matrix_free/portable_fe_evaluation.h
index 58bab33ad0..a82499c00a 100644
--- a/include/deal.II/matrix_free/portable_fe_evaluation.h
+++ b/include/deal.II/matrix_free/portable_fe_evaluation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/portable_hanging_nodes_internal.h b/include/deal.II/matrix_free/portable_hanging_nodes_internal.h
index 2944331ca4..2c91df24b3 100644
--- a/include/deal.II/matrix_free/portable_hanging_nodes_internal.h
+++ b/include/deal.II/matrix_free/portable_hanging_nodes_internal.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/portable_matrix_free.h b/include/deal.II/matrix_free/portable_matrix_free.h
index e5e43b07fd..3df13a1490 100644
--- a/include/deal.II/matrix_free/portable_matrix_free.h
+++ b/include/deal.II/matrix_free/portable_matrix_free.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/portable_matrix_free.templates.h b/include/deal.II/matrix_free/portable_matrix_free.templates.h
index 640e447efd..0cfbf2bce2 100644
--- a/include/deal.II/matrix_free/portable_matrix_free.templates.h
+++ b/include/deal.II/matrix_free/portable_matrix_free.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/portable_tensor_product_kernels.h b/include/deal.II/matrix_free/portable_tensor_product_kernels.h
index dbc7efb66f..a0b8c8af68 100644
--- a/include/deal.II/matrix_free/portable_tensor_product_kernels.h
+++ b/include/deal.II/matrix_free/portable_tensor_product_kernels.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/shape_info.templates.h b/include/deal.II/matrix_free/shape_info.templates.h
index 83b2639105..d7074fb8f8 100644
--- a/include/deal.II/matrix_free/shape_info.templates.h
+++ b/include/deal.II/matrix_free/shape_info.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2023 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/tensor_product_kernels.h b/include/deal.II/matrix_free/tensor_product_kernels.h
index 0ae8d2fa77..2a7bd2982f 100644
--- a/include/deal.II/matrix_free/tensor_product_kernels.h
+++ b/include/deal.II/matrix_free/tensor_product_kernels.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/type_traits.h b/include/deal.II/matrix_free/type_traits.h
index 7129bb040a..06ea119444 100644
--- a/include/deal.II/matrix_free/type_traits.h
+++ b/include/deal.II/matrix_free/type_traits.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/matrix_free/vector_access_internal.h b/include/deal.II/matrix_free/vector_access_internal.h
index 7270bb32f7..95a17a04f5 100644
--- a/include/deal.II/matrix_free/vector_access_internal.h
+++ b/include/deal.II/matrix_free/vector_access_internal.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/meshworker/assemble_flags.h b/include/deal.II/meshworker/assemble_flags.h
index e9c772c2c2..f3dd252631 100644
--- a/include/deal.II/meshworker/assemble_flags.h
+++ b/include/deal.II/meshworker/assemble_flags.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/meshworker/assembler.h b/include/deal.II/meshworker/assembler.h
index 3f304441a8..e224c56c75 100644
--- a/include/deal.II/meshworker/assembler.h
+++ b/include/deal.II/meshworker/assembler.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/meshworker/copy_data.h b/include/deal.II/meshworker/copy_data.h
index d83e762b57..906da35e94 100644
--- a/include/deal.II/meshworker/copy_data.h
+++ b/include/deal.II/meshworker/copy_data.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/meshworker/integration_info.h b/include/deal.II/meshworker/integration_info.h
index b773c7b432..ed6870d602 100644
--- a/include/deal.II/meshworker/integration_info.h
+++ b/include/deal.II/meshworker/integration_info.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/meshworker/scratch_data.h b/include/deal.II/meshworker/scratch_data.h
index f3b0098b29..7c51659719 100644
--- a/include/deal.II/meshworker/scratch_data.h
+++ b/include/deal.II/meshworker/scratch_data.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/meshworker/simple.h b/include/deal.II/meshworker/simple.h
index 9793a1ec7b..8a99d65b7b 100644
--- a/include/deal.II/meshworker/simple.h
+++ b/include/deal.II/meshworker/simple.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/meshworker/vector_selector.h b/include/deal.II/meshworker/vector_selector.h
index 270a3734fc..52ce3478ee 100644
--- a/include/deal.II/meshworker/vector_selector.h
+++ b/include/deal.II/meshworker/vector_selector.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/meshworker/vector_selector.templates.h b/include/deal.II/meshworker/vector_selector.templates.h
index 33423f683b..6371e65bd5 100644
--- a/include/deal.II/meshworker/vector_selector.templates.h
+++ b/include/deal.II/meshworker/vector_selector.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2019 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_base.h b/include/deal.II/multigrid/mg_base.h
index eab9cbe9b6..6ec9281640 100644
--- a/include/deal.II/multigrid/mg_base.h
+++ b/include/deal.II/multigrid/mg_base.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_block_smoother.h b/include/deal.II/multigrid/mg_block_smoother.h
index 97c2df0724..13e76c0185 100644
--- a/include/deal.II/multigrid/mg_block_smoother.h
+++ b/include/deal.II/multigrid/mg_block_smoother.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_coarse.h b/include/deal.II/multigrid/mg_coarse.h
index 33cfea5039..8c6e182777 100644
--- a/include/deal.II/multigrid/mg_coarse.h
+++ b/include/deal.II/multigrid/mg_coarse.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_matrix.h b/include/deal.II/multigrid/mg_matrix.h
index 4e72fc3be7..27ec94adf5 100644
--- a/include/deal.II/multigrid/mg_matrix.h
+++ b/include/deal.II/multigrid/mg_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_smoother.h b/include/deal.II/multigrid/mg_smoother.h
index 5e4256f6d3..8c8523761e 100644
--- a/include/deal.II/multigrid/mg_smoother.h
+++ b/include/deal.II/multigrid/mg_smoother.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_transfer.h b/include/deal.II/multigrid/mg_transfer.h
index 188b25c7e0..90597ebd66 100644
--- a/include/deal.II/multigrid/mg_transfer.h
+++ b/include/deal.II/multigrid/mg_transfer.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_transfer_block.templates.h b/include/deal.II/multigrid/mg_transfer_block.templates.h
index ed69894f53..25e1421c27 100644
--- a/include/deal.II/multigrid/mg_transfer_block.templates.h
+++ b/include/deal.II/multigrid/mg_transfer_block.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_transfer_component.templates.h b/include/deal.II/multigrid/mg_transfer_component.templates.h
index 93d7ebacd5..79b7b6ed4a 100644
--- a/include/deal.II/multigrid/mg_transfer_component.templates.h
+++ b/include/deal.II/multigrid/mg_transfer_component.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_transfer_global_coarsening.templates.h b/include/deal.II/multigrid/mg_transfer_global_coarsening.templates.h
index d3c154e0a1..b72e01eb9d 100644
--- a/include/deal.II/multigrid/mg_transfer_global_coarsening.templates.h
+++ b/include/deal.II/multigrid/mg_transfer_global_coarsening.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/mg_transfer_matrix_free.templates.h b/include/deal.II/multigrid/mg_transfer_matrix_free.templates.h
index f15e5f5413..0282808010 100644
--- a/include/deal.II/multigrid/mg_transfer_matrix_free.templates.h
+++ b/include/deal.II/multigrid/mg_transfer_matrix_free.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/multigrid/multigrid.h b/include/deal.II/multigrid/multigrid.h
index bfa48542ba..2adf5e50cd 100644
--- a/include/deal.II/multigrid/multigrid.h
+++ b/include/deal.II/multigrid/multigrid.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/non_matching/fe_immersed_values.h b/include/deal.II/non_matching/fe_immersed_values.h
index c4950e7e32..aca5b31dd2 100644
--- a/include/deal.II/non_matching/fe_immersed_values.h
+++ b/include/deal.II/non_matching/fe_immersed_values.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/non_matching/mapping_info.h b/include/deal.II/non_matching/mapping_info.h
index 5c80e284e6..cf15dd2902 100644
--- a/include/deal.II/non_matching/mapping_info.h
+++ b/include/deal.II/non_matching/mapping_info.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2023 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/non_matching/mesh_classifier.h b/include/deal.II/non_matching/mesh_classifier.h
index ce2342f04b..5a46452b8b 100644
--- a/include/deal.II/non_matching/mesh_classifier.h
+++ b/include/deal.II/non_matching/mesh_classifier.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/adaptation_strategies.h b/include/deal.II/numerics/adaptation_strategies.h
index 3518fccd39..5af3e5e243 100644
--- a/include/deal.II/numerics/adaptation_strategies.h
+++ b/include/deal.II/numerics/adaptation_strategies.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/data_out.h b/include/deal.II/numerics/data_out.h
index d7763643a9..4933b37a25 100644
--- a/include/deal.II/numerics/data_out.h
+++ b/include/deal.II/numerics/data_out.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/data_out_dof_data.h b/include/deal.II/numerics/data_out_dof_data.h
index 4cf9aea546..0b36622237 100644
--- a/include/deal.II/numerics/data_out_dof_data.h
+++ b/include/deal.II/numerics/data_out_dof_data.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/data_out_dof_data.templates.h b/include/deal.II/numerics/data_out_dof_data.templates.h
index 7405726891..8712e57ecf 100644
--- a/include/deal.II/numerics/data_out_dof_data.templates.h
+++ b/include/deal.II/numerics/data_out_dof_data.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/data_out_faces.h b/include/deal.II/numerics/data_out_faces.h
index d035e91139..cdd6504823 100644
--- a/include/deal.II/numerics/data_out_faces.h
+++ b/include/deal.II/numerics/data_out_faces.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/data_out_rotation.h b/include/deal.II/numerics/data_out_rotation.h
index d258312483..eba66b8ba8 100644
--- a/include/deal.II/numerics/data_out_rotation.h
+++ b/include/deal.II/numerics/data_out_rotation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/derivative_approximation.h b/include/deal.II/numerics/derivative_approximation.h
index 2b154b0824..2182ea0d4e 100644
--- a/include/deal.II/numerics/derivative_approximation.h
+++ b/include/deal.II/numerics/derivative_approximation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/dof_output_operator.templates.h b/include/deal.II/numerics/dof_output_operator.templates.h
index aeb556ab96..b7932ba86e 100644
--- a/include/deal.II/numerics/dof_output_operator.templates.h
+++ b/include/deal.II/numerics/dof_output_operator.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/dof_print_solver_step.h b/include/deal.II/numerics/dof_print_solver_step.h
index 75fb92bcd2..8c84417ca7 100644
--- a/include/deal.II/numerics/dof_print_solver_step.h
+++ b/include/deal.II/numerics/dof_print_solver_step.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/error_estimator.templates.h b/include/deal.II/numerics/error_estimator.templates.h
index dcc74f22f9..c45b78882a 100644
--- a/include/deal.II/numerics/error_estimator.templates.h
+++ b/include/deal.II/numerics/error_estimator.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/fe_field_function.h b/include/deal.II/numerics/fe_field_function.h
index ac83d84f72..c271ef1989 100644
--- a/include/deal.II/numerics/fe_field_function.h
+++ b/include/deal.II/numerics/fe_field_function.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/fe_field_function.templates.h b/include/deal.II/numerics/fe_field_function.templates.h
index d98a6db2ea..4ada5c8b11 100644
--- a/include/deal.II/numerics/fe_field_function.templates.h
+++ b/include/deal.II/numerics/fe_field_function.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/histogram.h b/include/deal.II/numerics/histogram.h
index 39c60dd124..293bcfb98a 100644
--- a/include/deal.II/numerics/histogram.h
+++ b/include/deal.II/numerics/histogram.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2020 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/history.h b/include/deal.II/numerics/history.h
index ceb6c94113..feca751051 100644
--- a/include/deal.II/numerics/history.h
+++ b/include/deal.II/numerics/history.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/matrix_creator.templates.h b/include/deal.II/numerics/matrix_creator.templates.h
index 16e2ae070a..5d816aa80d 100644
--- a/include/deal.II/numerics/matrix_creator.templates.h
+++ b/include/deal.II/numerics/matrix_creator.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/point_value_history.h b/include/deal.II/numerics/point_value_history.h
index 5317ed3afd..128c8e1d21 100644
--- a/include/deal.II/numerics/point_value_history.h
+++ b/include/deal.II/numerics/point_value_history.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/solution_transfer.h b/include/deal.II/numerics/solution_transfer.h
index c62c593141..fbe23e3bec 100644
--- a/include/deal.II/numerics/solution_transfer.h
+++ b/include/deal.II/numerics/solution_transfer.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/vector_tools_boundary.templates.h b/include/deal.II/numerics/vector_tools_boundary.templates.h
index 8ae9d745ec..769468af9d 100644
--- a/include/deal.II/numerics/vector_tools_boundary.templates.h
+++ b/include/deal.II/numerics/vector_tools_boundary.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/vector_tools_common.h b/include/deal.II/numerics/vector_tools_common.h
index cb9edf3098..8775ab3e67 100644
--- a/include/deal.II/numerics/vector_tools_common.h
+++ b/include/deal.II/numerics/vector_tools_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/vector_tools_constraints.h b/include/deal.II/numerics/vector_tools_constraints.h
index ab4cc0d6c5..f645e2834d 100644
--- a/include/deal.II/numerics/vector_tools_constraints.h
+++ b/include/deal.II/numerics/vector_tools_constraints.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/vector_tools_constraints.templates.h b/include/deal.II/numerics/vector_tools_constraints.templates.h
index 643d4f0bf1..78eadfa15c 100644
--- a/include/deal.II/numerics/vector_tools_constraints.templates.h
+++ b/include/deal.II/numerics/vector_tools_constraints.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/vector_tools_evaluate.h b/include/deal.II/numerics/vector_tools_evaluate.h
index 1e9ab401de..fe37f6a42c 100644
--- a/include/deal.II/numerics/vector_tools_evaluate.h
+++ b/include/deal.II/numerics/vector_tools_evaluate.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/vector_tools_integrate_difference.templates.h b/include/deal.II/numerics/vector_tools_integrate_difference.templates.h
index 513c433c50..bcf9aa5ea3 100644
--- a/include/deal.II/numerics/vector_tools_integrate_difference.templates.h
+++ b/include/deal.II/numerics/vector_tools_integrate_difference.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/numerics/vector_tools_project.templates.h b/include/deal.II/numerics/vector_tools_project.templates.h
index e3a7f38a56..1006e2b930 100644
--- a/include/deal.II/numerics/vector_tools_project.templates.h
+++ b/include/deal.II/numerics/vector_tools_project.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/opencascade/manifold_lib.h b/include/deal.II/opencascade/manifold_lib.h
index 88ea66f775..ddab37c207 100644
--- a/include/deal.II/opencascade/manifold_lib.h
+++ b/include/deal.II/opencascade/manifold_lib.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/opencascade/utilities.h b/include/deal.II/opencascade/utilities.h
index 3563e02908..aaa5d54465 100644
--- a/include/deal.II/opencascade/utilities.h
+++ b/include/deal.II/opencascade/utilities.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/optimization/line_minimization.h b/include/deal.II/optimization/line_minimization.h
index 6e682aa6c3..63787fe27e 100644
--- a/include/deal.II/optimization/line_minimization.h
+++ b/include/deal.II/optimization/line_minimization.h
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2018 - 2023 by the deal.II authors
+//    Copyright (C) 2018 - 2024 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/include/deal.II/optimization/rol/vector_adaptor.h b/include/deal.II/optimization/rol/vector_adaptor.h
index dee7c582de..787cea0a7f 100644
--- a/include/deal.II/optimization/rol/vector_adaptor.h
+++ b/include/deal.II/optimization/rol/vector_adaptor.h
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2017 - 2022 by the deal.II authors
+//    Copyright (C) 2017 - 2023 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/include/deal.II/optimization/solver_bfgs.h b/include/deal.II/optimization/solver_bfgs.h
index 4822a128f0..5c3874bb75 100644
--- a/include/deal.II/optimization/solver_bfgs.h
+++ b/include/deal.II/optimization/solver_bfgs.h
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2018 - 2023 by the deal.II authors
+//    Copyright (C) 2018 - 2024 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/include/deal.II/particles/generators.h b/include/deal.II/particles/generators.h
index 6f43bb5c4e..b65ace54ab 100644
--- a/include/deal.II/particles/generators.h
+++ b/include/deal.II/particles/generators.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/particles/particle.h b/include/deal.II/particles/particle.h
index 6a9f975a95..a8aba87067 100644
--- a/include/deal.II/particles/particle.h
+++ b/include/deal.II/particles/particle.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/particles/particle_accessor.h b/include/deal.II/particles/particle_accessor.h
index da079889df..9033fbad87 100644
--- a/include/deal.II/particles/particle_accessor.h
+++ b/include/deal.II/particles/particle_accessor.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/particles/particle_iterator.h b/include/deal.II/particles/particle_iterator.h
index e33f1bf772..456c2261e1 100644
--- a/include/deal.II/particles/particle_iterator.h
+++ b/include/deal.II/particles/particle_iterator.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/particles/utilities.h b/include/deal.II/particles/utilities.h
index ae181988c8..1ba3a7fe44 100644
--- a/include/deal.II/particles/utilities.h
+++ b/include/deal.II/particles/utilities.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/physics/elasticity/kinematics.h b/include/deal.II/physics/elasticity/kinematics.h
index a39d9c2a53..07d7802683 100644
--- a/include/deal.II/physics/elasticity/kinematics.h
+++ b/include/deal.II/physics/elasticity/kinematics.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/physics/transformations.h b/include/deal.II/physics/transformations.h
index 64d9a8bb44..2bb223123e 100644
--- a/include/deal.II/physics/transformations.h
+++ b/include/deal.II/physics/transformations.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/sundials/n_vector.templates.h b/include/deal.II/sundials/n_vector.templates.h
index da2d2fb57a..c508a7278d 100644
--- a/include/deal.II/sundials/n_vector.templates.h
+++ b/include/deal.II/sundials/n_vector.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/include/deal.II/trilinos/nox.templates.h b/include/deal.II/trilinos/nox.templates.h
index bde8680a1a..ec4373c89d 100644
--- a/include/deal.II/trilinos/nox.templates.h
+++ b/include/deal.II/trilinos/nox.templates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/algorithms/operator.cc b/source/algorithms/operator.cc
index 378a9844b3..3779e6077d 100644
--- a/source/algorithms/operator.cc
+++ b/source/algorithms/operator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2022 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/arborx/access_traits.inst.in b/source/arborx/access_traits.inst.in
index 32da50e190..a34de0166e 100644
--- a/source/arborx/access_traits.inst.in
+++ b/source/arborx/access_traits.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/auto_derivative_function.cc b/source/base/auto_derivative_function.cc
index 3de710201a..7cf2dc94b1 100644
--- a/source/base/auto_derivative_function.cc
+++ b/source/base/auto_derivative_function.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2018 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/data_out_base.cc b/source/base/data_out_base.cc
index b2bc85ca59..62b15bb858 100644
--- a/source/base/data_out_base.cc
+++ b/source/base/data_out_base.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/exceptions.cc b/source/base/exceptions.cc
index b839b9ef84..476889e545 100644
--- a/source/base/exceptions.cc
+++ b/source/base/exceptions.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/flow_function.cc b/source/base/flow_function.cc
index 45e1582ba7..a98294bd45 100644
--- a/source/base/flow_function.cc
+++ b/source/base/flow_function.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2023 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/function_derivative.cc b/source/base/function_derivative.cc
index c2e2ed63ce..d919c40939 100644
--- a/source/base/function_derivative.cc
+++ b/source/base/function_derivative.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/function_lib.cc b/source/base/function_lib.cc
index ffc8d1030e..ca10c9e98b 100644
--- a/source/base/function_lib.cc
+++ b/source/base/function_lib.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/function_parser.cc b/source/base/function_parser.cc
index 238a0cf16d..39ea753866 100644
--- a/source/base/function_parser.cc
+++ b/source/base/function_parser.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/function_restriction.cc b/source/base/function_restriction.cc
index 9542e1856e..dd3f304ce3 100644
--- a/source/base/function_restriction.cc
+++ b/source/base/function_restriction.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/function_signed_distance.cc b/source/base/function_signed_distance.cc
index d09a8f5d1a..14113bdff7 100644
--- a/source/base/function_signed_distance.cc
+++ b/source/base/function_signed_distance.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/function_spherical.cc b/source/base/function_spherical.cc
index bf2f4ab220..34f4a4c3f3 100644
--- a/source/base/function_spherical.cc
+++ b/source/base/function_spherical.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/geometric_utilities.cc b/source/base/geometric_utilities.cc
index e474dba95c..e487c7837f 100644
--- a/source/base/geometric_utilities.cc
+++ b/source/base/geometric_utilities.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/graph_coloring.cc b/source/base/graph_coloring.cc
index 1844256e8b..ec564d897e 100644
--- a/source/base/graph_coloring.cc
+++ b/source/base/graph_coloring.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/hdf5.cc b/source/base/hdf5.cc
index 3c5e35ad62..5caba30570 100644
--- a/source/base/hdf5.cc
+++ b/source/base/hdf5.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/incremental_function.cc b/source/base/incremental_function.cc
index fc5246b95b..a2be6ec151 100644
--- a/source/base/incremental_function.cc
+++ b/source/base/incremental_function.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2018 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/index_set.cc b/source/base/index_set.cc
index 19d08bd7de..2e984a99ad 100644
--- a/source/base/index_set.cc
+++ b/source/base/index_set.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/job_identifier.cc b/source/base/job_identifier.cc
index cdd287439e..580754a0a8 100644
--- a/source/base/job_identifier.cc
+++ b/source/base/job_identifier.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/mpi.cc b/source/base/mpi.cc
index 95aa3021e1..2ca5d596cd 100644
--- a/source/base/mpi.cc
+++ b/source/base/mpi.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/mpi_compute_index_owner_internal.cc b/source/base/mpi_compute_index_owner_internal.cc
index 01392dc80b..dfcc283be9 100644
--- a/source/base/mpi_compute_index_owner_internal.cc
+++ b/source/base/mpi_compute_index_owner_internal.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/mpi_noncontiguous_partitioner.inst.in b/source/base/mpi_noncontiguous_partitioner.inst.in
index 44c1fd08e0..e9c9310f3f 100644
--- a/source/base/mpi_noncontiguous_partitioner.inst.in
+++ b/source/base/mpi_noncontiguous_partitioner.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/mu_parser_internal.cc b/source/base/mu_parser_internal.cc
index 04d92e4fe4..57570bc42a 100644
--- a/source/base/mu_parser_internal.cc
+++ b/source/base/mu_parser_internal.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/numbers.cc b/source/base/numbers.cc
index 37d9ccb4c4..60a7f3002d 100644
--- a/source/base/numbers.cc
+++ b/source/base/numbers.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2019 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/parameter_handler.cc b/source/base/parameter_handler.cc
index e7da93089b..9e92fdb94c 100644
--- a/source/base/parameter_handler.cc
+++ b/source/base/parameter_handler.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/parsed_convergence_table.cc b/source/base/parsed_convergence_table.cc
index c859015add..8ad95f4c12 100644
--- a/source/base/parsed_convergence_table.cc
+++ b/source/base/parsed_convergence_table.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/parsed_function.cc b/source/base/parsed_function.cc
index 18de8dc0a9..5e99b15b8f 100644
--- a/source/base/parsed_function.cc
+++ b/source/base/parsed_function.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/path_search.cc b/source/base/path_search.cc
index b246cbbedb..b44bc45d15 100644
--- a/source/base/path_search.cc
+++ b/source/base/path_search.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2019 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/patterns.cc b/source/base/patterns.cc
index b8723fff5e..1cf56e8304 100644
--- a/source/base/patterns.cc
+++ b/source/base/patterns.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomial.cc b/source/base/polynomial.cc
index d2f8717dda..c38f7555e3 100644
--- a/source/base/polynomial.cc
+++ b/source/base/polynomial.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomial_space.cc b/source/base/polynomial_space.cc
index a01b03a523..2942c3cdce 100644
--- a/source/base/polynomial_space.cc
+++ b/source/base/polynomial_space.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2020 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_abf.cc b/source/base/polynomials_abf.cc
index 7ccc4de85d..bd5afa7eb6 100644
--- a/source/base/polynomials_abf.cc
+++ b/source/base/polynomials_abf.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_adini.cc b/source/base/polynomials_adini.cc
index 1780e56ce8..ff189b7d09 100644
--- a/source/base/polynomials_adini.cc
+++ b/source/base/polynomials_adini.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_barycentric.cc b/source/base/polynomials_barycentric.cc
index 234e12ccfa..312da35d95 100644
--- a/source/base/polynomials_barycentric.cc
+++ b/source/base/polynomials_barycentric.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_bdm.cc b/source/base/polynomials_bdm.cc
index 4a96cc13ec..fb36e0699e 100644
--- a/source/base/polynomials_bdm.cc
+++ b/source/base/polynomials_bdm.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_bernardi_raugel.cc b/source/base/polynomials_bernardi_raugel.cc
index 64d7261590..eee0c5f11c 100644
--- a/source/base/polynomials_bernardi_raugel.cc
+++ b/source/base/polynomials_bernardi_raugel.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_integrated_legendre_sz.cc b/source/base/polynomials_integrated_legendre_sz.cc
index a54460e4ae..4dad31dd31 100644
--- a/source/base/polynomials_integrated_legendre_sz.cc
+++ b/source/base/polynomials_integrated_legendre_sz.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_nedelec.cc b/source/base/polynomials_nedelec.cc
index 5bc28ad03b..dfde1aa9b3 100644
--- a/source/base/polynomials_nedelec.cc
+++ b/source/base/polynomials_nedelec.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2020 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_piecewise.cc b/source/base/polynomials_piecewise.cc
index f3ed8474fd..0a77bd7d7a 100644
--- a/source/base/polynomials_piecewise.cc
+++ b/source/base/polynomials_piecewise.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_pyramid.cc b/source/base/polynomials_pyramid.cc
index fba27ffcd5..cdcbe6be32 100644
--- a/source/base/polynomials_pyramid.cc
+++ b/source/base/polynomials_pyramid.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_rannacher_turek.cc b/source/base/polynomials_rannacher_turek.cc
index 262f303db0..1e5aaf2fa4 100644
--- a/source/base/polynomials_rannacher_turek.cc
+++ b/source/base/polynomials_rannacher_turek.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_raviart_thomas.cc b/source/base/polynomials_raviart_thomas.cc
index 2952983a81..11e7835ed3 100644
--- a/source/base/polynomials_raviart_thomas.cc
+++ b/source/base/polynomials_raviart_thomas.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_rt_bubbles.cc b/source/base/polynomials_rt_bubbles.cc
index 066a58005b..fbe6eeba94 100644
--- a/source/base/polynomials_rt_bubbles.cc
+++ b/source/base/polynomials_rt_bubbles.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/polynomials_wedge.cc b/source/base/polynomials_wedge.cc
index 4212ac2dde..f88c85f5eb 100644
--- a/source/base/polynomials_wedge.cc
+++ b/source/base/polynomials_wedge.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/qprojector.cc b/source/base/qprojector.cc
index aa9a07da56..d70d45039c 100644
--- a/source/base/qprojector.cc
+++ b/source/base/qprojector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/quadrature.cc b/source/base/quadrature.cc
index 5dffef9157..b6fa338a4c 100644
--- a/source/base/quadrature.cc
+++ b/source/base/quadrature.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/quadrature_lib.cc b/source/base/quadrature_lib.cc
index bd194c400b..5b1b68cf56 100644
--- a/source/base/quadrature_lib.cc
+++ b/source/base/quadrature_lib.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/scalar_polynomials_base.cc b/source/base/scalar_polynomials_base.cc
index e66629fb40..921e9cbcbf 100644
--- a/source/base/scalar_polynomials_base.cc
+++ b/source/base/scalar_polynomials_base.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2019 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/subscriptor.cc b/source/base/subscriptor.cc
index 9bc1bb9ea9..7daec46b30 100644
--- a/source/base/subscriptor.cc
+++ b/source/base/subscriptor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/table_handler.cc b/source/base/table_handler.cc
index 6e577f98d5..4496ee754d 100644
--- a/source/base/table_handler.cc
+++ b/source/base/table_handler.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/tensor_function_parser.cc b/source/base/tensor_function_parser.cc
index a0fe7b5e0e..7abb8e8c96 100644
--- a/source/base/tensor_function_parser.cc
+++ b/source/base/tensor_function_parser.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/tensor_product_polynomials.cc b/source/base/tensor_product_polynomials.cc
index 08b80f3a9e..be217b5956 100644
--- a/source/base/tensor_product_polynomials.cc
+++ b/source/base/tensor_product_polynomials.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/tensor_product_polynomials_bubbles.cc b/source/base/tensor_product_polynomials_bubbles.cc
index 65cfe522d5..0d70c5893e 100644
--- a/source/base/tensor_product_polynomials_bubbles.cc
+++ b/source/base/tensor_product_polynomials_bubbles.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2021 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/tensor_product_polynomials_const.cc b/source/base/tensor_product_polynomials_const.cc
index f4b09cf004..62862c5e93 100644
--- a/source/base/tensor_product_polynomials_const.cc
+++ b/source/base/tensor_product_polynomials_const.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/timer.cc b/source/base/timer.cc
index 4e4fac7454..b6dabe01ff 100644
--- a/source/base/timer.cc
+++ b/source/base/timer.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/trilinos_utilities.cc b/source/base/trilinos_utilities.cc
index 1c27569029..bb1493d89e 100644
--- a/source/base/trilinos_utilities.cc
+++ b/source/base/trilinos_utilities.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/utilities.cc b/source/base/utilities.cc
index d6b436ab70..0dc9ce145e 100644
--- a/source/base/utilities.cc
+++ b/source/base/utilities.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/base/vectorization.cc b/source/base/vectorization.cc
index a81179a3cb..35c2aa5f40 100644
--- a/source/base/vectorization.cc
+++ b/source/base/vectorization.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/cgal/intersections.cc b/source/cgal/intersections.cc
index e1a633abd4..ee7d963dd5 100644
--- a/source/cgal/intersections.cc
+++ b/source/cgal/intersections.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/cgal/intersections.inst.in b/source/cgal/intersections.inst.in
index 98de036407..e71ce0f3b0 100644
--- a/source/cgal/intersections.inst.in
+++ b/source/cgal/intersections.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/cgal/surface_mesh.cc b/source/cgal/surface_mesh.cc
index b5bdd406bb..8c037b6d2b 100644
--- a/source/cgal/surface_mesh.cc
+++ b/source/cgal/surface_mesh.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/cgal/surface_mesh.inst.in b/source/cgal/surface_mesh.inst.in
index 981d9e2f90..71f545b13f 100644
--- a/source/cgal/surface_mesh.inst.in
+++ b/source/cgal/surface_mesh.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/differentiation/ad/ad_helpers.cc b/source/differentiation/ad/ad_helpers.cc
index 55554a579b..fa58887a45 100644
--- a/source/differentiation/ad/ad_helpers.cc
+++ b/source/differentiation/ad/ad_helpers.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/differentiation/ad/adolc_number_types.cc b/source/differentiation/ad/adolc_number_types.cc
index 17cf9a4065..900cfc90bd 100644
--- a/source/differentiation/ad/adolc_number_types.cc
+++ b/source/differentiation/ad/adolc_number_types.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/differentiation/sd/symengine_number_types.cc b/source/differentiation/sd/symengine_number_types.cc
index 705ff5fb8a..a79bdca311 100644
--- a/source/differentiation/sd/symengine_number_types.cc
+++ b/source/differentiation/sd/symengine_number_types.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/differentiation/sd/symengine_optimizer.cc b/source/differentiation/sd/symengine_optimizer.cc
index 7a54173a38..1f55722128 100644
--- a/source/differentiation/sd/symengine_optimizer.cc
+++ b/source/differentiation/sd/symengine_optimizer.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/differentiation/sd/symengine_scalar_operations.cc b/source/differentiation/sd/symengine_scalar_operations.cc
index fd354c26a1..35c136dbee 100644
--- a/source/differentiation/sd/symengine_scalar_operations.cc
+++ b/source/differentiation/sd/symengine_scalar_operations.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/differentiation/sd/symengine_tensor_operations.cc b/source/differentiation/sd/symengine_tensor_operations.cc
index 8ec3a396ec..78781fcfb0 100644
--- a/source/differentiation/sd/symengine_tensor_operations.cc
+++ b/source/differentiation/sd/symengine_tensor_operations.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/differentiation/sd/symengine_tensor_operations.inst.in b/source/differentiation/sd/symengine_tensor_operations.inst.in
index d32d56ea19..8af721362a 100644
--- a/source/differentiation/sd/symengine_tensor_operations.inst.in
+++ b/source/differentiation/sd/symengine_tensor_operations.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/differentiation/sd/symengine_utilities.cc b/source/differentiation/sd/symengine_utilities.cc
index b58dc67d3a..12750d6146 100644
--- a/source/differentiation/sd/symengine_utilities.cc
+++ b/source/differentiation/sd/symengine_utilities.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/distributed/cell_weights.cc b/source/distributed/cell_weights.cc
index 5ca5129afe..5225dc03c7 100644
--- a/source/distributed/cell_weights.cc
+++ b/source/distributed/cell_weights.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/distributed/fully_distributed_tria.cc b/source/distributed/fully_distributed_tria.cc
index 1087fb397c..0836eb8510 100644
--- a/source/distributed/fully_distributed_tria.cc
+++ b/source/distributed/fully_distributed_tria.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/distributed/grid_refinement.cc b/source/distributed/grid_refinement.cc
index a0aa4a32ac..b31d85104c 100644
--- a/source/distributed/grid_refinement.cc
+++ b/source/distributed/grid_refinement.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/distributed/p4est_wrappers.cc b/source/distributed/p4est_wrappers.cc
index 8a5b164469..53e2cbc078 100644
--- a/source/distributed/p4est_wrappers.cc
+++ b/source/distributed/p4est_wrappers.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2022 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/distributed/repartitioning_policy_tools.cc b/source/distributed/repartitioning_policy_tools.cc
index 1aff13df0a..d02a8b64fb 100644
--- a/source/distributed/repartitioning_policy_tools.cc
+++ b/source/distributed/repartitioning_policy_tools.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/distributed/shared_tria.cc b/source/distributed/shared_tria.cc
index 84f663792c..3f78fb9692 100644
--- a/source/distributed/shared_tria.cc
+++ b/source/distributed/shared_tria.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2023 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/distributed/solution_transfer.cc b/source/distributed/solution_transfer.cc
index af20515b64..6b7a63ac0a 100644
--- a/source/distributed/solution_transfer.cc
+++ b/source/distributed/solution_transfer.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2023 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/distributed/tria.cc b/source/distributed/tria.cc
index 5df934934f..e03693f959 100644
--- a/source/distributed/tria.cc
+++ b/source/distributed/tria.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/distributed/tria_base.cc b/source/distributed/tria_base.cc
index 4532fb7ed0..40a0d53032 100644
--- a/source/distributed/tria_base.cc
+++ b/source/distributed/tria_base.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2023 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/block_info.cc b/source/dofs/block_info.cc
index ab3fe03549..5e78466058 100644
--- a/source/dofs/block_info.cc
+++ b/source/dofs/block_info.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_accessor.cc b/source/dofs/dof_accessor.cc
index 8ffa54426e..f6d85a61fc 100644
--- a/source/dofs/dof_accessor.cc
+++ b/source/dofs/dof_accessor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_accessor_get.cc b/source/dofs/dof_accessor_get.cc
index acb7979ccc..70bab34a47 100644
--- a/source/dofs/dof_accessor_get.cc
+++ b/source/dofs/dof_accessor_get.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_accessor_get.inst.in b/source/dofs/dof_accessor_get.inst.in
index 0c6127dd39..02b0dd8c7c 100644
--- a/source/dofs/dof_accessor_get.inst.in
+++ b/source/dofs/dof_accessor_get.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_accessor_set.cc b/source/dofs/dof_accessor_set.cc
index 9592e130ac..4627a0e822 100644
--- a/source/dofs/dof_accessor_set.cc
+++ b/source/dofs/dof_accessor_set.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_handler.cc b/source/dofs/dof_handler.cc
index 64a5b2ec93..380e143836 100644
--- a/source/dofs/dof_handler.cc
+++ b/source/dofs/dof_handler.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_handler_policy.cc b/source/dofs/dof_handler_policy.cc
index bd08718336..e093a523eb 100644
--- a/source/dofs/dof_handler_policy.cc
+++ b/source/dofs/dof_handler_policy.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_renumbering.cc b/source/dofs/dof_renumbering.cc
index 8d2d1f22f0..986128437e 100644
--- a/source/dofs/dof_renumbering.cc
+++ b/source/dofs/dof_renumbering.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_tools.inst.in b/source/dofs/dof_tools.inst.in
index 33138186a6..4094df58ca 100644
--- a/source/dofs/dof_tools.inst.in
+++ b/source/dofs/dof_tools.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2023 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_tools_constraints.cc b/source/dofs/dof_tools_constraints.cc
index 802af7c112..e42ba94a02 100644
--- a/source/dofs/dof_tools_constraints.cc
+++ b/source/dofs/dof_tools_constraints.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_tools_constraints.inst.in b/source/dofs/dof_tools_constraints.inst.in
index 8517424588..41c774c455 100644
--- a/source/dofs/dof_tools_constraints.inst.in
+++ b/source/dofs/dof_tools_constraints.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/dofs/dof_tools_sparsity.inst.in b/source/dofs/dof_tools_sparsity.inst.in
index bebe9fc625..721e45e0fd 100644
--- a/source/dofs/dof_tools_sparsity.inst.in
+++ b/source/dofs/dof_tools_sparsity.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/block_mask.cc b/source/fe/block_mask.cc
index 663b2f5033..4f7a115674 100644
--- a/source/fe/block_mask.cc
+++ b/source/fe/block_mask.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2018 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/component_mask.cc b/source/fe/component_mask.cc
index 99cc384d67..c6f6fb71d0 100644
--- a/source/fe/component_mask.cc
+++ b/source/fe/component_mask.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2018 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe.cc b/source/fe/fe.cc
index 03721c5b0a..927e6d8bdc 100644
--- a/source/fe/fe.cc
+++ b/source/fe/fe.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_abf.cc b/source/fe/fe_abf.cc
index 45d31415cb..e3d675173a 100644
--- a/source/fe/fe_abf.cc
+++ b/source/fe/fe_abf.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_bernstein.cc b/source/fe/fe_bernstein.cc
index 1d732a2410..a0d12bd2a3 100644
--- a/source/fe/fe_bernstein.cc
+++ b/source/fe/fe_bernstein.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_dg_vector.cc b/source/fe/fe_dg_vector.cc
index 060889cc60..63e6b0150b 100644
--- a/source/fe/fe_dg_vector.cc
+++ b/source/fe/fe_dg_vector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_dgp.cc b/source/fe/fe_dgp.cc
index 3c57909b7b..2b1c706b19 100644
--- a/source/fe/fe_dgp.cc
+++ b/source/fe/fe_dgp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2020 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_dgp_monomial.cc b/source/fe/fe_dgp_monomial.cc
index 2efdb1e805..231c5c796f 100644
--- a/source/fe/fe_dgp_monomial.cc
+++ b/source/fe/fe_dgp_monomial.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_dgp_nonparametric.cc b/source/fe/fe_dgp_nonparametric.cc
index 4debab7785..59a2a84e55 100644
--- a/source/fe/fe_dgp_nonparametric.cc
+++ b/source/fe/fe_dgp_nonparametric.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_dgq.cc b/source/fe/fe_dgq.cc
index 0a47a1b0ef..ec772c775f 100644
--- a/source/fe/fe_dgq.cc
+++ b/source/fe/fe_dgq.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_enriched.cc b/source/fe/fe_enriched.cc
index e9b8b09708..fc738c7c64 100644
--- a/source/fe/fe_enriched.cc
+++ b/source/fe/fe_enriched.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_enriched.inst.in b/source/fe/fe_enriched.inst.in
index bdd8dcd8bc..42fe21e792 100644
--- a/source/fe/fe_enriched.inst.in
+++ b/source/fe/fe_enriched.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_face.cc b/source/fe/fe_face.cc
index 79ea61a22e..87c78d9226 100644
--- a/source/fe/fe_face.cc
+++ b/source/fe/fe_face.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2023 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_hermite.cc b/source/fe/fe_hermite.cc
index f15cad6496..eb3f002516 100644
--- a/source/fe/fe_hermite.cc
+++ b/source/fe/fe_hermite.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 - 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_nedelec.cc b/source/fe/fe_nedelec.cc
index 156f12b721..5b0c78670a 100644
--- a/source/fe/fe_nedelec.cc
+++ b/source/fe/fe_nedelec.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2023 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_nedelec_sz.cc b/source/fe/fe_nedelec_sz.cc
index 23dfb9ef0a..ff944fd76f 100644
--- a/source/fe/fe_nedelec_sz.cc
+++ b/source/fe/fe_nedelec_sz.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2023 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_nothing.inst.in b/source/fe/fe_nothing.inst.in
index e5cd60dbd3..e0aa853a13 100644
--- a/source/fe/fe_nothing.inst.in
+++ b/source/fe/fe_nothing.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_p1nc.cc b/source/fe/fe_p1nc.cc
index 680279c38f..979ef4db76 100644
--- a/source/fe/fe_p1nc.cc
+++ b/source/fe/fe_p1nc.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_poly.cc b/source/fe/fe_poly.cc
index e31751a5af..aa6579063a 100644
--- a/source/fe/fe_poly.cc
+++ b/source/fe/fe_poly.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_poly_tensor.cc b/source/fe/fe_poly_tensor.cc
index 661f2f6aae..bcc5aab1bd 100644
--- a/source/fe/fe_poly_tensor.cc
+++ b/source/fe/fe_poly_tensor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_pyramid_p.cc b/source/fe/fe_pyramid_p.cc
index 1f6eb3f8c0..cf82a90343 100644
--- a/source/fe/fe_pyramid_p.cc
+++ b/source/fe/fe_pyramid_p.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_q.cc b/source/fe/fe_q.cc
index f4b5563df3..e3481078df 100644
--- a/source/fe/fe_q.cc
+++ b/source/fe/fe_q.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_q_base.cc b/source/fe/fe_q_base.cc
index eae49e57ae..d537e4dcf1 100644
--- a/source/fe/fe_q_base.cc
+++ b/source/fe/fe_q_base.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_q_bubbles.cc b/source/fe/fe_q_bubbles.cc
index 290e8ea06c..f509dfe2dc 100644
--- a/source/fe/fe_q_bubbles.cc
+++ b/source/fe/fe_q_bubbles.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2023 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_q_dg0.cc b/source/fe/fe_q_dg0.cc
index 0119d3a867..0aa93e7acb 100644
--- a/source/fe/fe_q_dg0.cc
+++ b/source/fe/fe_q_dg0.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_q_hierarchical.cc b/source/fe/fe_q_hierarchical.cc
index 1485511420..24153b19b8 100644
--- a/source/fe/fe_q_hierarchical.cc
+++ b/source/fe/fe_q_hierarchical.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2023 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_q_iso_q1.cc b/source/fe/fe_q_iso_q1.cc
index e2d4e41f48..37a731399e 100644
--- a/source/fe/fe_q_iso_q1.cc
+++ b/source/fe/fe_q_iso_q1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_rannacher_turek.cc b/source/fe/fe_rannacher_turek.cc
index d6d3bf51be..ffd6c1696e 100644
--- a/source/fe/fe_rannacher_turek.cc
+++ b/source/fe/fe_rannacher_turek.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_raviart_thomas.cc b/source/fe/fe_raviart_thomas.cc
index ca13f783ed..0e14b0c97f 100644
--- a/source/fe/fe_raviart_thomas.cc
+++ b/source/fe/fe_raviart_thomas.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_raviart_thomas_nodal.cc b/source/fe/fe_raviart_thomas_nodal.cc
index 6234a61a4e..c14a558b29 100644
--- a/source/fe/fe_raviart_thomas_nodal.cc
+++ b/source/fe/fe_raviart_thomas_nodal.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_rt_bubbles.cc b/source/fe/fe_rt_bubbles.cc
index 1c8c5a2631..9146e5e92e 100644
--- a/source/fe/fe_rt_bubbles.cc
+++ b/source/fe/fe_rt_bubbles.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_series_fourier.cc b/source/fe/fe_series_fourier.cc
index 626541d537..e18672c34b 100644
--- a/source/fe/fe_series_fourier.cc
+++ b/source/fe/fe_series_fourier.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_series_legendre.cc b/source/fe/fe_series_legendre.cc
index fcf08ce9b0..bb747a5d2a 100644
--- a/source/fe/fe_series_legendre.cc
+++ b/source/fe/fe_series_legendre.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_simplex_p.cc b/source/fe/fe_simplex_p.cc
index 025086847b..bb7006ec00 100644
--- a/source/fe/fe_simplex_p.cc
+++ b/source/fe/fe_simplex_p.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_simplex_p_bubbles.cc b/source/fe/fe_simplex_p_bubbles.cc
index e41c4da49d..50f28b5674 100644
--- a/source/fe/fe_simplex_p_bubbles.cc
+++ b/source/fe/fe_simplex_p_bubbles.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_system.cc b/source/fe/fe_system.cc
index 14f3e2164a..d979bb564f 100644
--- a/source/fe/fe_system.cc
+++ b/source/fe/fe_system.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_tools.cc b/source/fe/fe_tools.cc
index 8c8638dfe6..47eda5b996 100644
--- a/source/fe/fe_tools.cc
+++ b/source/fe/fe_tools.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_tools.inst.in b/source/fe/fe_tools.inst.in
index 4d44541b9e..6096fd030c 100644
--- a/source/fe/fe_tools.inst.in
+++ b/source/fe/fe_tools.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_trace.cc b/source/fe/fe_trace.cc
index b15e4e8c05..d6bb148d44 100644
--- a/source/fe/fe_trace.cc
+++ b/source/fe/fe_trace.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_values.cc b/source/fe/fe_values.cc
index c51c16873f..c2aa15d7f0 100644
--- a/source/fe/fe_values.cc
+++ b/source/fe/fe_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_values.inst.in b/source/fe/fe_values.inst.in
index 26ee780538..ed9fc02738 100644
--- a/source/fe/fe_values.inst.in
+++ b/source/fe/fe_values.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_values_base.inst.in b/source/fe/fe_values_base.inst.in
index 6469dab267..0aa15f9231 100644
--- a/source/fe/fe_values_base.inst.in
+++ b/source/fe/fe_values_base.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_values_views.inst.in b/source/fe/fe_values_views.inst.in
index 3d7f70728b..d0a7986e47 100644
--- a/source/fe/fe_values_views.inst.in
+++ b/source/fe/fe_values_views.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_values_views_internal.cc b/source/fe/fe_values_views_internal.cc
index 0e13816f0b..0660d89341 100644
--- a/source/fe/fe_values_views_internal.cc
+++ b/source/fe/fe_values_views_internal.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_values_views_internal.inst.in b/source/fe/fe_values_views_internal.inst.in
index 2f4cb3af9e..253da06d7c 100644
--- a/source/fe/fe_values_views_internal.inst.in
+++ b/source/fe/fe_values_views_internal.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/fe_wedge_p.cc b/source/fe/fe_wedge_p.cc
index 8357265595..82c1f2ed76 100644
--- a/source/fe/fe_wedge_p.cc
+++ b/source/fe/fe_wedge_p.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping.cc b/source/fe/mapping.cc
index cb9a8d96b9..128fc37ea5 100644
--- a/source/fe/mapping.cc
+++ b/source/fe/mapping.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping.inst.in b/source/fe/mapping.inst.in
index c620117c47..4ac657a7b6 100644
--- a/source/fe/mapping.inst.in
+++ b/source/fe/mapping.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping_c1.cc b/source/fe/mapping_c1.cc
index 2c52b5e6a7..ee8c40b39a 100644
--- a/source/fe/mapping_c1.cc
+++ b/source/fe/mapping_c1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping_cartesian.cc b/source/fe/mapping_cartesian.cc
index fb0573de15..a8cc0fcfb4 100644
--- a/source/fe/mapping_cartesian.cc
+++ b/source/fe/mapping_cartesian.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping_fe.cc b/source/fe/mapping_fe.cc
index c2f87a6422..15f35c2e14 100644
--- a/source/fe/mapping_fe.cc
+++ b/source/fe/mapping_fe.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping_fe_field.cc b/source/fe/mapping_fe_field.cc
index 2cac29eaa3..c84b9e1944 100644
--- a/source/fe/mapping_fe_field.cc
+++ b/source/fe/mapping_fe_field.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping_manifold.cc b/source/fe/mapping_manifold.cc
index 09b6973659..929c28f278 100644
--- a/source/fe/mapping_manifold.cc
+++ b/source/fe/mapping_manifold.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping_q.cc b/source/fe/mapping_q.cc
index 34f88f7903..8d05876b31 100644
--- a/source/fe/mapping_q.cc
+++ b/source/fe/mapping_q.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping_q1_eulerian.cc b/source/fe/mapping_q1_eulerian.cc
index 7911a09759..ac3e866797 100644
--- a/source/fe/mapping_q1_eulerian.cc
+++ b/source/fe/mapping_q1_eulerian.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping_q_cache.inst.in b/source/fe/mapping_q_cache.inst.in
index 5f8b845bf3..843c315150 100644
--- a/source/fe/mapping_q_cache.inst.in
+++ b/source/fe/mapping_q_cache.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/fe/mapping_q_eulerian.cc b/source/fe/mapping_q_eulerian.cc
index eea4b4d0af..6dc9719d6d 100644
--- a/source/fe/mapping_q_eulerian.cc
+++ b/source/fe/mapping_q_eulerian.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/gmsh/utilities.cc b/source/gmsh/utilities.cc
index 4fbad7db66..79281267c7 100644
--- a/source/gmsh/utilities.cc
+++ b/source/gmsh/utilities.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/gmsh/utilities.inst.in b/source/gmsh/utilities.inst.in
index 5a9158289a..43c203870b 100644
--- a/source/gmsh/utilities.inst.in
+++ b/source/gmsh/utilities.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/cell_id.cc b/source/grid/cell_id.cc
index da46dbbcee..ad1484504d 100644
--- a/source/grid/cell_id.cc
+++ b/source/grid/cell_id.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_generator.cc b/source/grid/grid_generator.cc
index 0ff6e12eb9..07602d3523 100644
--- a/source/grid/grid_generator.cc
+++ b/source/grid/grid_generator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_generator.inst.in b/source/grid/grid_generator.inst.in
index 26858a4acc..06969f1a31 100644
--- a/source/grid/grid_generator.inst.in
+++ b/source/grid/grid_generator.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_generator_cgal.cc b/source/grid/grid_generator_cgal.cc
index 3574034bbe..7c3de37e5d 100644
--- a/source/grid/grid_generator_cgal.cc
+++ b/source/grid/grid_generator_cgal.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_generator_from_name.cc b/source/grid/grid_generator_from_name.cc
index 341b2953ae..395cc590de 100644
--- a/source/grid/grid_generator_from_name.cc
+++ b/source/grid/grid_generator_from_name.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_generator_pipe_junction.cc b/source/grid/grid_generator_pipe_junction.cc
index c95815104b..9a3c9a7502 100644
--- a/source/grid/grid_generator_pipe_junction.cc
+++ b/source/grid/grid_generator_pipe_junction.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_in.cc b/source/grid/grid_in.cc
index d008699d9a..b80efec35b 100644
--- a/source/grid/grid_in.cc
+++ b/source/grid/grid_in.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_in.inst.in b/source/grid/grid_in.inst.in
index cdf09cf1ab..fe6295009f 100644
--- a/source/grid/grid_in.inst.in
+++ b/source/grid/grid_in.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2018 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_out.cc b/source/grid/grid_out.cc
index 3f920a515f..48951786a6 100644
--- a/source/grid/grid_out.cc
+++ b/source/grid/grid_out.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_refinement.cc b/source/grid/grid_refinement.cc
index b91bd4d2f0..984e85c280 100644
--- a/source/grid/grid_refinement.cc
+++ b/source/grid/grid_refinement.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_tools.cc b/source/grid/grid_tools.cc
index e8cfcb2cce..a6074ad6e4 100644
--- a/source/grid/grid_tools.cc
+++ b/source/grid/grid_tools.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_tools_dof_handlers.cc b/source/grid/grid_tools_dof_handlers.cc
index 76b825ef4f..fa51422deb 100644
--- a/source/grid/grid_tools_dof_handlers.cc
+++ b/source/grid/grid_tools_dof_handlers.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_tools_nontemplates.cc b/source/grid/grid_tools_nontemplates.cc
index 2e6cff31d4..8fb080944c 100644
--- a/source/grid/grid_tools_nontemplates.cc
+++ b/source/grid/grid_tools_nontemplates.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/grid_tools_topology.cc b/source/grid/grid_tools_topology.cc
index 30aaf67ff1..34dc53cc10 100644
--- a/source/grid/grid_tools_topology.cc
+++ b/source/grid/grid_tools_topology.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/manifold.cc b/source/grid/manifold.cc
index ce311fd26e..e2664376df 100644
--- a/source/grid/manifold.cc
+++ b/source/grid/manifold.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/manifold_lib.cc b/source/grid/manifold_lib.cc
index a97aa1aa77..bc1b93c721 100644
--- a/source/grid/manifold_lib.cc
+++ b/source/grid/manifold_lib.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2023 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/persistent_tria.cc b/source/grid/persistent_tria.cc
index 12981288dd..bc28513b29 100644
--- a/source/grid/persistent_tria.cc
+++ b/source/grid/persistent_tria.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/reference_cell.cc b/source/grid/reference_cell.cc
index 6e9f9f6aa3..17de98f759 100644
--- a/source/grid/reference_cell.cc
+++ b/source/grid/reference_cell.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/tria.cc b/source/grid/tria.cc
index ce80da5ec1..9c31f04d0e 100644
--- a/source/grid/tria.cc
+++ b/source/grid/tria.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/tria.inst.in b/source/grid/tria.inst.in
index 642bf33dec..0e7bbad3de 100644
--- a/source/grid/tria.inst.in
+++ b/source/grid/tria.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/tria_accessor.cc b/source/grid/tria_accessor.cc
index 0d9a30a923..1f9373ea2d 100644
--- a/source/grid/tria_accessor.cc
+++ b/source/grid/tria_accessor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/grid/tria_description.cc b/source/grid/tria_description.cc
index 3fea01049a..ba9607c2df 100644
--- a/source/grid/tria_description.cc
+++ b/source/grid/tria_description.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/hp/fe_values.cc b/source/hp/fe_values.cc
index 23779930a9..d12b2223df 100644
--- a/source/hp/fe_values.cc
+++ b/source/hp/fe_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/hp/refinement.cc b/source/hp/refinement.cc
index 2a3754e906..678c5b3679 100644
--- a/source/hp/refinement.cc
+++ b/source/hp/refinement.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/CMakeLists.txt b/source/lac/CMakeLists.txt
index cc9d8da6de..e693508581 100644
--- a/source/lac/CMakeLists.txt
+++ b/source/lac/CMakeLists.txt
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2012 - 2023 by the deal.II authors
+## Copyright (C) 2012 - 2024 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/source/lac/affine_constraints.inst.in b/source/lac/affine_constraints.inst.in
index 1c232930de..3cf67cbad0 100644
--- a/source/lac/affine_constraints.inst.in
+++ b/source/lac/affine_constraints.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2023 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/block_vector.inst.in b/source/lac/block_vector.inst.in
index 590a89688f..dc96a4d102 100644
--- a/source/lac/block_vector.inst.in
+++ b/source/lac/block_vector.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/cuda_kernels.cc b/source/lac/cuda_kernels.cc
index 6103018e49..823ade5ba8 100644
--- a/source/lac/cuda_kernels.cc
+++ b/source/lac/cuda_kernels.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/cuda_precondition.cc b/source/lac/cuda_precondition.cc
index 0ea8e560b3..982d41817b 100644
--- a/source/lac/cuda_precondition.cc
+++ b/source/lac/cuda_precondition.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/cuda_solver_direct.cc b/source/lac/cuda_solver_direct.cc
index 1940e913d7..5aedb4de93 100644
--- a/source/lac/cuda_solver_direct.cc
+++ b/source/lac/cuda_solver_direct.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/exceptions.cc b/source/lac/exceptions.cc
index f47c346064..0515383197 100644
--- a/source/lac/exceptions.cc
+++ b/source/lac/exceptions.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/ginkgo_solver.cc b/source/lac/ginkgo_solver.cc
index 73bcc6b9ee..00e9cbd858 100644
--- a/source/lac/ginkgo_solver.cc
+++ b/source/lac/ginkgo_solver.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/la_parallel_block_vector.inst.in b/source/lac/la_parallel_block_vector.inst.in
index cddb19fd82..f79a2198ff 100644
--- a/source/lac/la_parallel_block_vector.inst.in
+++ b/source/lac/la_parallel_block_vector.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/petsc_communication_pattern.cc b/source/lac/petsc_communication_pattern.cc
index 19ff745bbe..0a0a6ea84f 100644
--- a/source/lac/petsc_communication_pattern.cc
+++ b/source/lac/petsc_communication_pattern.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/petsc_matrix_base.cc b/source/lac/petsc_matrix_base.cc
index a160e2c67a..0b7f3a5b75 100644
--- a/source/lac/petsc_matrix_base.cc
+++ b/source/lac/petsc_matrix_base.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/petsc_precondition.cc b/source/lac/petsc_precondition.cc
index 8cd65eeabc..3e5ca0a9f6 100644
--- a/source/lac/petsc_precondition.cc
+++ b/source/lac/petsc_precondition.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/petsc_solver.cc b/source/lac/petsc_solver.cc
index 3f69e0bcb1..ad51e0e612 100644
--- a/source/lac/petsc_solver.cc
+++ b/source/lac/petsc_solver.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/qr.cc b/source/lac/qr.cc
index 96c225e0bd..c4ae1572a3 100644
--- a/source/lac/qr.cc
+++ b/source/lac/qr.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/scalapack.cc b/source/lac/scalapack.cc
index 2211757fcd..50e880177d 100644
--- a/source/lac/scalapack.cc
+++ b/source/lac/scalapack.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/slepc_solver.cc b/source/lac/slepc_solver.cc
index 2b34ebc2f7..d8d7ec13da 100644
--- a/source/lac/slepc_solver.cc
+++ b/source/lac/slepc_solver.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2023 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/solver.cc b/source/lac/solver.cc
index ad01d98aff..f21f1fa102 100644
--- a/source/lac/solver.cc
+++ b/source/lac/solver.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2019 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/solver_control.cc b/source/lac/solver_control.cc
index 074e21e53a..f285edae0f 100644
--- a/source/lac/solver_control.cc
+++ b/source/lac/solver_control.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/sparse_vanka.cc b/source/lac/sparse_vanka.cc
index 50e4e46ed2..436760a244 100644
--- a/source/lac/sparse_vanka.cc
+++ b/source/lac/sparse_vanka.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2018 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/sparsity_pattern.cc b/source/lac/sparsity_pattern.cc
index f20e8cae8d..c5ca52fe82 100644
--- a/source/lac/sparsity_pattern.cc
+++ b/source/lac/sparsity_pattern.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/tridiagonal_matrix.cc b/source/lac/tridiagonal_matrix.cc
index 847ddd7973..f43a76455e 100644
--- a/source/lac/tridiagonal_matrix.cc
+++ b/source/lac/tridiagonal_matrix.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_precondition.cc b/source/lac/trilinos_precondition.cc
index b3bd5021fa..e4c1d15516 100644
--- a/source/lac/trilinos_precondition.cc
+++ b/source/lac/trilinos_precondition.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_precondition_ml.cc b/source/lac/trilinos_precondition_ml.cc
index b20160c965..034cf2a5d9 100644
--- a/source/lac/trilinos_precondition_ml.cc
+++ b/source/lac/trilinos_precondition_ml.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2022 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_precondition_muelu.cc b/source/lac/trilinos_precondition_muelu.cc
index 58810669a9..e1a4248a9b 100644
--- a/source/lac/trilinos_precondition_muelu.cc
+++ b/source/lac/trilinos_precondition_muelu.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2022 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_solver.cc b/source/lac/trilinos_solver.cc
index 7661bf5dff..89012c6e0f 100644
--- a/source/lac/trilinos_solver.cc
+++ b/source/lac/trilinos_solver.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_sparse_matrix.cc b/source/lac/trilinos_sparse_matrix.cc
index c69654441c..4e286f9db3 100644
--- a/source/lac/trilinos_sparse_matrix.cc
+++ b/source/lac/trilinos_sparse_matrix.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_sparsity_pattern.cc b/source/lac/trilinos_sparsity_pattern.cc
index 965bed9e81..9e6ba3c274 100644
--- a/source/lac/trilinos_sparsity_pattern.cc
+++ b/source/lac/trilinos_sparsity_pattern.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_tpetra_communication_pattern.cc b/source/lac/trilinos_tpetra_communication_pattern.cc
index a797c628ab..6b7224c957 100644
--- a/source/lac/trilinos_tpetra_communication_pattern.cc
+++ b/source/lac/trilinos_tpetra_communication_pattern.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_tpetra_sparse_matrix.cc b/source/lac/trilinos_tpetra_sparse_matrix.cc
index 36945b1843..c5c2f33dbf 100644
--- a/source/lac/trilinos_tpetra_sparse_matrix.cc
+++ b/source/lac/trilinos_tpetra_sparse_matrix.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_tpetra_sparsity_pattern.cc b/source/lac/trilinos_tpetra_sparsity_pattern.cc
index 2e7778aebc..0ba1380d44 100644
--- a/source/lac/trilinos_tpetra_sparsity_pattern.cc
+++ b/source/lac/trilinos_tpetra_sparsity_pattern.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_tpetra_vector.cc b/source/lac/trilinos_tpetra_vector.cc
index f858d8d0bf..d8d1b3bd69 100644
--- a/source/lac/trilinos_tpetra_vector.cc
+++ b/source/lac/trilinos_tpetra_vector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/trilinos_vector.cc b/source/lac/trilinos_vector.cc
index b64381447f..f204d5a568 100644
--- a/source/lac/trilinos_vector.cc
+++ b/source/lac/trilinos_vector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/utilities.cc b/source/lac/utilities.cc
index f853e40f26..3a5547f64c 100644
--- a/source/lac/utilities.cc
+++ b/source/lac/utilities.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/vector.cc b/source/lac/vector.cc
index 54d97765c1..eaf3f8ad82 100644
--- a/source/lac/vector.cc
+++ b/source/lac/vector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/vector.inst.in b/source/lac/vector.inst.in
index f3ff806e42..511f786441 100644
--- a/source/lac/vector.inst.in
+++ b/source/lac/vector.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/lac/vector_memory.cc b/source/lac/vector_memory.cc
index dd72832d50..57a73b0176 100644
--- a/source/lac/vector_memory.cc
+++ b/source/lac/vector_memory.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/matrix_free/CMakeLists.txt b/source/matrix_free/CMakeLists.txt
index 730c9f6d1d..4333e75eab 100644
--- a/source/matrix_free/CMakeLists.txt
+++ b/source/matrix_free/CMakeLists.txt
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2013 - 2023 by the deal.II authors
+## Copyright (C) 2013 - 2024 by the deal.II authors
 ##
 ## This file is part of the deal.II library.
 ##
diff --git a/source/matrix_free/fe_point_evaluation.cc b/source/matrix_free/fe_point_evaluation.cc
index f315ce804e..6948c94db5 100644
--- a/source/matrix_free/fe_point_evaluation.cc
+++ b/source/matrix_free/fe_point_evaluation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/matrix_free/fe_point_evaluation.inst.in b/source/matrix_free/fe_point_evaluation.inst.in
index 8472091e9d..05c4966b8a 100644
--- a/source/matrix_free/fe_point_evaluation.inst.in
+++ b/source/matrix_free/fe_point_evaluation.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/matrix_free/portable_matrix_free.cc b/source/matrix_free/portable_matrix_free.cc
index 8b7df033ed..4e75156dc8 100644
--- a/source/matrix_free/portable_matrix_free.cc
+++ b/source/matrix_free/portable_matrix_free.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/matrix_free/task_info.cc b/source/matrix_free/task_info.cc
index 936b5eef13..6fe4aa85da 100644
--- a/source/matrix_free/task_info.cc
+++ b/source/matrix_free/task_info.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/matrix_free/vector_data_exchange.cc b/source/matrix_free/vector_data_exchange.cc
index 6d6151d10e..3e1250bea6 100644
--- a/source/matrix_free/vector_data_exchange.cc
+++ b/source/matrix_free/vector_data_exchange.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/meshworker/mesh_worker_vector_selector.cc b/source/meshworker/mesh_worker_vector_selector.cc
index ff2a946479..8b1ebf7719 100644
--- a/source/meshworker/mesh_worker_vector_selector.cc
+++ b/source/meshworker/mesh_worker_vector_selector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/multigrid/mg_base.cc b/source/multigrid/mg_base.cc
index 9a1afba77a..a125494840 100644
--- a/source/multigrid/mg_base.cc
+++ b/source/multigrid/mg_base.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2021 by the deal.II authors
+// Copyright (C) 1999 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/multigrid/mg_tools.cc b/source/multigrid/mg_tools.cc
index 5cd321d5c4..c55654bda3 100644
--- a/source/multigrid/mg_tools.cc
+++ b/source/multigrid/mg_tools.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/multigrid/mg_tools.inst.in b/source/multigrid/mg_tools.inst.in
index f36ff688a8..bc11cc8546 100644
--- a/source/multigrid/mg_tools.inst.in
+++ b/source/multigrid/mg_tools.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/multigrid/mg_transfer_global_coarsening.cc b/source/multigrid/mg_transfer_global_coarsening.cc
index ba7734b0ee..accc6bca26 100644
--- a/source/multigrid/mg_transfer_global_coarsening.cc
+++ b/source/multigrid/mg_transfer_global_coarsening.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/multigrid/mg_transfer_prebuilt.cc b/source/multigrid/mg_transfer_prebuilt.cc
index 408f298d5f..7e8610c99a 100644
--- a/source/multigrid/mg_transfer_prebuilt.cc
+++ b/source/multigrid/mg_transfer_prebuilt.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/multigrid/multigrid.cc b/source/multigrid/multigrid.cc
index 0e71fcd9ab..4096bd0b8b 100644
--- a/source/multigrid/multigrid.cc
+++ b/source/multigrid/multigrid.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/non_matching/coupling.cc b/source/non_matching/coupling.cc
index 22c073a237..fbeb92f10b 100644
--- a/source/non_matching/coupling.cc
+++ b/source/non_matching/coupling.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/non_matching/coupling.inst.in b/source/non_matching/coupling.inst.in
index 47b44b68f5..bf2f195c77 100644
--- a/source/non_matching/coupling.inst.in
+++ b/source/non_matching/coupling.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/non_matching/fe_immersed_values.cc b/source/non_matching/fe_immersed_values.cc
index 8d9dffb3c4..b9f7e434f2 100644
--- a/source/non_matching/fe_immersed_values.cc
+++ b/source/non_matching/fe_immersed_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/non_matching/fe_values.cc b/source/non_matching/fe_values.cc
index e8385a68fe..6f30fcbe10 100644
--- a/source/non_matching/fe_values.cc
+++ b/source/non_matching/fe_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/non_matching/immersed_surface_quadrature.cc b/source/non_matching/immersed_surface_quadrature.cc
index a439902fea..b415d41170 100644
--- a/source/non_matching/immersed_surface_quadrature.cc
+++ b/source/non_matching/immersed_surface_quadrature.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/non_matching/mesh_classifier.cc b/source/non_matching/mesh_classifier.cc
index 7149ed7a64..c1c17eb429 100644
--- a/source/non_matching/mesh_classifier.cc
+++ b/source/non_matching/mesh_classifier.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/non_matching/quadrature_generator.cc b/source/non_matching/quadrature_generator.cc
index 7e9ae0dbb3..b3656951e9 100644
--- a/source/non_matching/quadrature_generator.cc
+++ b/source/non_matching/quadrature_generator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/non_matching/quadrature_generator.inst.in b/source/non_matching/quadrature_generator.inst.in
index e2f2e551ab..1369636cf8 100644
--- a/source/non_matching/quadrature_generator.inst.in
+++ b/source/non_matching/quadrature_generator.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/data_out.cc b/source/numerics/data_out.cc
index 3627abd2c2..ffd729134f 100644
--- a/source/numerics/data_out.cc
+++ b/source/numerics/data_out.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/data_out_dof_data.cc b/source/numerics/data_out_dof_data.cc
index d562e41a79..7a047240af 100644
--- a/source/numerics/data_out_dof_data.cc
+++ b/source/numerics/data_out_dof_data.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/data_out_dof_data_codim.cc b/source/numerics/data_out_dof_data_codim.cc
index 4ce957b433..7cc3cca78f 100644
--- a/source/numerics/data_out_dof_data_codim.cc
+++ b/source/numerics/data_out_dof_data_codim.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/data_out_dof_data_inst2.cc b/source/numerics/data_out_dof_data_inst2.cc
index 3dbf96334b..c5af3dec91 100644
--- a/source/numerics/data_out_dof_data_inst2.cc
+++ b/source/numerics/data_out_dof_data_inst2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/data_out_faces.cc b/source/numerics/data_out_faces.cc
index 940cd725f5..1e48fab3fd 100644
--- a/source/numerics/data_out_faces.cc
+++ b/source/numerics/data_out_faces.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/data_out_resample.cc b/source/numerics/data_out_resample.cc
index 9a0166f1dd..ff84733fb2 100644
--- a/source/numerics/data_out_resample.cc
+++ b/source/numerics/data_out_resample.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/data_out_rotation.cc b/source/numerics/data_out_rotation.cc
index f329c72126..2725bfddd9 100644
--- a/source/numerics/data_out_rotation.cc
+++ b/source/numerics/data_out_rotation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/data_out_stack.cc b/source/numerics/data_out_stack.cc
index 5332ab98f7..ee4de094a2 100644
--- a/source/numerics/data_out_stack.cc
+++ b/source/numerics/data_out_stack.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/derivative_approximation.cc b/source/numerics/derivative_approximation.cc
index dd51ea4d9c..edcd494bdf 100644
--- a/source/numerics/derivative_approximation.cc
+++ b/source/numerics/derivative_approximation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/derivative_approximation.inst.in b/source/numerics/derivative_approximation.inst.in
index 06a36b2685..8735195632 100644
--- a/source/numerics/derivative_approximation.inst.in
+++ b/source/numerics/derivative_approximation.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/dof_output_operator.cc b/source/numerics/dof_output_operator.cc
index d8de292af5..438bd4a7f2 100644
--- a/source/numerics/dof_output_operator.cc
+++ b/source/numerics/dof_output_operator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/error_estimator.inst.in b/source/numerics/error_estimator.inst.in
index 74c2cf4009..bdebf4965f 100644
--- a/source/numerics/error_estimator.inst.in
+++ b/source/numerics/error_estimator.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/error_estimator_1d.cc b/source/numerics/error_estimator_1d.cc
index c621775af0..44cc359660 100644
--- a/source/numerics/error_estimator_1d.cc
+++ b/source/numerics/error_estimator_1d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/error_estimator_1d.inst.in b/source/numerics/error_estimator_1d.inst.in
index c01a378e8e..ba42e0c969 100644
--- a/source/numerics/error_estimator_1d.inst.in
+++ b/source/numerics/error_estimator_1d.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/fe_field_function.cc b/source/numerics/fe_field_function.cc
index c645cc8d85..a9cbc639a2 100644
--- a/source/numerics/fe_field_function.cc
+++ b/source/numerics/fe_field_function.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/histogram.cc b/source/numerics/histogram.cc
index 9057b5ea45..be367f9629 100644
--- a/source/numerics/histogram.cc
+++ b/source/numerics/histogram.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2022 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/matrix_creator.inst.in b/source/numerics/matrix_creator.inst.in
index e4782d8c46..65eb74aba0 100644
--- a/source/numerics/matrix_creator.inst.in
+++ b/source/numerics/matrix_creator.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/matrix_tools.cc b/source/numerics/matrix_tools.cc
index 98f9a43c82..b83146596d 100644
--- a/source/numerics/matrix_tools.cc
+++ b/source/numerics/matrix_tools.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/matrix_tools.inst.in b/source/numerics/matrix_tools.inst.in
index 8536d05d91..44fd6b7598 100644
--- a/source/numerics/matrix_tools.inst.in
+++ b/source/numerics/matrix_tools.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/matrix_tools_once.cc b/source/numerics/matrix_tools_once.cc
index 60052d3777..d311bcb9e9 100644
--- a/source/numerics/matrix_tools_once.cc
+++ b/source/numerics/matrix_tools_once.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/point_value_history.cc b/source/numerics/point_value_history.cc
index a9c260e980..b94adccc66 100644
--- a/source/numerics/point_value_history.cc
+++ b/source/numerics/point_value_history.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/solution_transfer.cc b/source/numerics/solution_transfer.cc
index ae54635768..8fb2d41b9b 100644
--- a/source/numerics/solution_transfer.cc
+++ b/source/numerics/solution_transfer.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/time_dependent.cc b/source/numerics/time_dependent.cc
index ea9541a2d6..d803e40ea2 100644
--- a/source/numerics/time_dependent.cc
+++ b/source/numerics/time_dependent.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2023 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/vector_tools_constraints.inst.in b/source/numerics/vector_tools_constraints.inst.in
index af31f69b56..78945bd156 100644
--- a/source/numerics/vector_tools_constraints.inst.in
+++ b/source/numerics/vector_tools_constraints.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/numerics/vector_tools_integrate_difference.inst.in b/source/numerics/vector_tools_integrate_difference.inst.in
index a1dbd44850..45652428a1 100644
--- a/source/numerics/vector_tools_integrate_difference.inst.in
+++ b/source/numerics/vector_tools_integrate_difference.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/opencascade/manifold_lib.cc b/source/opencascade/manifold_lib.cc
index 38374c8cef..8ff5fa3057 100644
--- a/source/opencascade/manifold_lib.cc
+++ b/source/opencascade/manifold_lib.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/opencascade/utilities.inst.in b/source/opencascade/utilities.inst.in
index 6edff0edee..ddd0598786 100644
--- a/source/opencascade/utilities.inst.in
+++ b/source/opencascade/utilities.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/particles/data_out.cc b/source/particles/data_out.cc
index 9c6bab556b..7df1b9ec87 100644
--- a/source/particles/data_out.cc
+++ b/source/particles/data_out.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/particles/generators.inst.in b/source/particles/generators.inst.in
index 9a1463d3b9..6811f61b4d 100644
--- a/source/particles/generators.inst.in
+++ b/source/particles/generators.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/particles/particle.cc b/source/particles/particle.cc
index e0685cbe77..396300b612 100644
--- a/source/particles/particle.cc
+++ b/source/particles/particle.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/particles/particle_handler.cc b/source/particles/particle_handler.cc
index 0d47946dc6..4a02a4882b 100644
--- a/source/particles/particle_handler.cc
+++ b/source/particles/particle_handler.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/particles/property_pool.cc b/source/particles/property_pool.cc
index 8d9fd19c45..12bd0d0704 100644
--- a/source/particles/property_pool.cc
+++ b/source/particles/property_pool.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/particles/utilities.cc b/source/particles/utilities.cc
index 1e2138e969..c41ffbd942 100644
--- a/source/particles/utilities.cc
+++ b/source/particles/utilities.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/particles/utilities.inst.in b/source/particles/utilities.inst.in
index 3f713a14a7..afda6b8bc0 100644
--- a/source/particles/utilities.inst.in
+++ b/source/particles/utilities.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/sundials/ida.cc b/source/sundials/ida.cc
index bac6cab459..e628953b91 100644
--- a/source/sundials/ida.cc
+++ b/source/sundials/ida.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2023 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/sundials/kinsol.cc b/source/sundials/kinsol.cc
index 4e2541078b..d99e6e0ef3 100644
--- a/source/sundials/kinsol.cc
+++ b/source/sundials/kinsol.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/source/sundials/n_vector.inst.in b/source/sundials/n_vector.inst.in
index bbd73f6077..b543fb40b0 100644
--- a/source/sundials/n_vector.inst.in
+++ b/source/sundials/n_vector.inst.in
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/helper_scalar_coupled_2_components_06.h b/tests/ad_common_tests/helper_scalar_coupled_2_components_06.h
index c9ea156fa0..0542b4af06 100644
--- a/tests/ad_common_tests/helper_scalar_coupled_2_components_06.h
+++ b/tests/ad_common_tests/helper_scalar_coupled_2_components_06.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/helper_scalar_coupled_2_components_06a.h b/tests/ad_common_tests/helper_scalar_coupled_2_components_06a.h
index 763e83cd6c..eee98c1489 100644
--- a/tests/ad_common_tests/helper_scalar_coupled_2_components_06a.h
+++ b/tests/ad_common_tests/helper_scalar_coupled_2_components_06a.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/helper_scalar_coupled_2_components_07.h b/tests/ad_common_tests/helper_scalar_coupled_2_components_07.h
index 3038ea0fee..5212f4056c 100644
--- a/tests/ad_common_tests/helper_scalar_coupled_2_components_07.h
+++ b/tests/ad_common_tests/helper_scalar_coupled_2_components_07.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/helper_scalar_coupled_3_components_01.h b/tests/ad_common_tests/helper_scalar_coupled_3_components_01.h
index a1effdd3e4..8e857d2625 100644
--- a/tests/ad_common_tests/helper_scalar_coupled_3_components_01.h
+++ b/tests/ad_common_tests/helper_scalar_coupled_3_components_01.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/helper_scalar_coupled_3_components_01_tapeless_only.h b/tests/ad_common_tests/helper_scalar_coupled_3_components_01_tapeless_only.h
index 0f200eb11d..0c64fffbca 100644
--- a/tests/ad_common_tests/helper_scalar_coupled_3_components_01_tapeless_only.h
+++ b/tests/ad_common_tests/helper_scalar_coupled_3_components_01_tapeless_only.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/helper_scalar_coupled_4_components_01.h b/tests/ad_common_tests/helper_scalar_coupled_4_components_01.h
index 98b72cb9a2..81092d8ca4 100644
--- a/tests/ad_common_tests/helper_scalar_coupled_4_components_01.h
+++ b/tests/ad_common_tests/helper_scalar_coupled_4_components_01.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/step-44-helper_res_lin_01.h b/tests/ad_common_tests/step-44-helper_res_lin_01.h
index c814731d1c..1a1e9dfcad 100644
--- a/tests/ad_common_tests/step-44-helper_res_lin_01.h
+++ b/tests/ad_common_tests/step-44-helper_res_lin_01.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/step-44-helper_scalar_01.h b/tests/ad_common_tests/step-44-helper_scalar_01.h
index a6416d9336..15177b8575 100644
--- a/tests/ad_common_tests/step-44-helper_scalar_01.h
+++ b/tests/ad_common_tests/step-44-helper_scalar_01.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/step-44-helper_var_form_01.h b/tests/ad_common_tests/step-44-helper_var_form_01.h
index d40f083a25..c7e64acb81 100644
--- a/tests/ad_common_tests/step-44-helper_var_form_01.h
+++ b/tests/ad_common_tests/step-44-helper_var_form_01.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/step-44-helper_vector_01.h b/tests/ad_common_tests/step-44-helper_vector_01.h
index 85bd58b1e4..65a0116777 100644
--- a/tests/ad_common_tests/step-44-helper_vector_01.h
+++ b/tests/ad_common_tests/step-44-helper_vector_01.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/symmetric_tensor_functions_04.h b/tests/ad_common_tests/symmetric_tensor_functions_04.h
index c3cf363a61..90bac7ab5f 100644
--- a/tests/ad_common_tests/symmetric_tensor_functions_04.h
+++ b/tests/ad_common_tests/symmetric_tensor_functions_04.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/ad_common_tests/tensor_functions_02.h b/tests/ad_common_tests/tensor_functions_02.h
index b4c418240f..6980526cd4 100644
--- a/tests/ad_common_tests/tensor_functions_02.h
+++ b/tests/ad_common_tests/tensor_functions_02.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/adolc/basic_function_gradient_hessian_taped.cc b/tests/adolc/basic_function_gradient_hessian_taped.cc
index 6f8eb8e272..390b4575ea 100644
--- a/tests/adolc/basic_function_gradient_hessian_taped.cc
+++ b/tests/adolc/basic_function_gradient_hessian_taped.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/adolc/basic_functions_jacobian_taped.cc b/tests/adolc/basic_functions_jacobian_taped.cc
index 791f899c3c..5179ed7062 100644
--- a/tests/adolc/basic_functions_jacobian_taped.cc
+++ b/tests/adolc/basic_functions_jacobian_taped.cc
@@ -1,5 +1,5 @@
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/adolc/step-44-helper_res_lin_01_1.cc b/tests/adolc/step-44-helper_res_lin_01_1.cc
index 8f27144381..faf8ae3d08 100644
--- a/tests/adolc/step-44-helper_res_lin_01_1.cc
+++ b/tests/adolc/step-44-helper_res_lin_01_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/adolc/step-44-helper_res_lin_01_2.cc b/tests/adolc/step-44-helper_res_lin_01_2.cc
index 2bdb4238a4..7000a7428e 100644
--- a/tests/adolc/step-44-helper_res_lin_01_2.cc
+++ b/tests/adolc/step-44-helper_res_lin_01_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/adolc/step-44-helper_scalar_01_1.cc b/tests/adolc/step-44-helper_scalar_01_1.cc
index a30ce5ed42..fbfd02e7fb 100644
--- a/tests/adolc/step-44-helper_scalar_01_1.cc
+++ b/tests/adolc/step-44-helper_scalar_01_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/adolc/step-44-helper_var_form_01_1.cc b/tests/adolc/step-44-helper_var_form_01_1.cc
index 5e0e87c617..9c3f2cad4c 100644
--- a/tests/adolc/step-44-helper_var_form_01_1.cc
+++ b/tests/adolc/step-44-helper_var_form_01_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/adolc/step-44-helper_vector_01_1.cc b/tests/adolc/step-44-helper_vector_01_1.cc
index 3316d48567..24fc9f9b76 100644
--- a/tests/adolc/step-44-helper_vector_01_1.cc
+++ b/tests/adolc/step-44-helper_vector_01_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/adolc/step-44-helper_vector_01_2.cc b/tests/adolc/step-44-helper_vector_01_2.cc
index fdf8526d5a..221c8d81ab 100644
--- a/tests/adolc/step-44-helper_vector_01_2.cc
+++ b/tests/adolc/step-44-helper_vector_01_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/adolc/step-44.cc b/tests/adolc/step-44.cc
index 096e49759b..cffeb870cb 100644
--- a/tests/adolc/step-44.cc
+++ b/tests/adolc/step-44.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/algorithms/any_data_01.cc b/tests/algorithms/any_data_01.cc
index df12c0a597..5e45ca12f5 100644
--- a/tests/algorithms/any_data_01.cc
+++ b/tests/algorithms/any_data_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/aniso/fe_tools.cc b/tests/aniso/fe_tools.cc
index 658abbcbbc..d0c5059674 100644
--- a/tests/aniso/fe_tools.cc
+++ b/tests/aniso/fe_tools.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/aniso/mesh_3d_21.cc b/tests/aniso/mesh_3d_21.cc
index af5c1f33a5..dc5ca72b55 100644
--- a/tests/aniso/mesh_3d_21.cc
+++ b/tests/aniso/mesh_3d_21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/aniso/refine_and_coarsen_anisotropic.cc b/tests/aniso/refine_and_coarsen_anisotropic.cc
index 820647dc3b..7fd97f759f 100644
--- a/tests/aniso/refine_and_coarsen_anisotropic.cc
+++ b/tests/aniso/refine_and_coarsen_anisotropic.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/aniso/up_and_down.cc b/tests/aniso/up_and_down.cc
index 5de50631cd..ed3e98a256 100644
--- a/tests/aniso/up_and_down.cc
+++ b/tests/aniso/up_and_down.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/arborx/bounding_box_intersect.cc b/tests/arborx/bounding_box_intersect.cc
index 43f53c2a62..2041d47f84 100644
--- a/tests/arborx/bounding_box_intersect.cc
+++ b/tests/arborx/bounding_box_intersect.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/arborx/distributed_tree_intersect.cc b/tests/arborx/distributed_tree_intersect.cc
index 76cb632e65..2ef47e9612 100644
--- a/tests/arborx/distributed_tree_intersect.cc
+++ b/tests/arborx/distributed_tree_intersect.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/arborx/distributed_tree_nearest.cc b/tests/arborx/distributed_tree_nearest.cc
index 7919abbbea..25351a8149 100644
--- a/tests/arborx/distributed_tree_nearest.cc
+++ b/tests/arborx/distributed_tree_nearest.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/arborx/point_intersect.cc b/tests/arborx/point_intersect.cc
index 401d1bac7c..59998c0b84 100644
--- a/tests/arborx/point_intersect.cc
+++ b/tests/arborx/point_intersect.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/arborx/point_nearest.cc b/tests/arborx/point_nearest.cc
index 31e89f5bc9..5bcb8e5987 100644
--- a/tests/arborx/point_nearest.cc
+++ b/tests/arborx/point_nearest.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/arborx/sphere_intersect.cc b/tests/arborx/sphere_intersect.cc
index b46ecee416..fad4e272bc 100644
--- a/tests/arborx/sphere_intersect.cc
+++ b/tests/arborx/sphere_intersect.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/arborx/sphere_nearest.cc b/tests/arborx/sphere_nearest.cc
index 8ff19ea7a7..a8f478878a 100644
--- a/tests/arborx/sphere_nearest.cc
+++ b/tests/arborx/sphere_nearest.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/arpack/arpack_advection_diffusion.cc b/tests/arpack/arpack_advection_diffusion.cc
index 75309fbe0d..ee45cfb387 100644
--- a/tests/arpack/arpack_advection_diffusion.cc
+++ b/tests/arpack/arpack_advection_diffusion.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2020 by the deal.II authors
+ * Copyright (C) 2009 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/arpack/parpack_advection_diffusion_trilinos.cc b/tests/arpack/parpack_advection_diffusion_trilinos.cc
index 3edd5a5d87..7b1f2d2253 100644
--- a/tests/arpack/parpack_advection_diffusion_trilinos.cc
+++ b/tests/arpack/parpack_advection_diffusion_trilinos.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2021 by the deal.II authors
+ * Copyright (C) 2009 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/arpack/step-36_ar.cc b/tests/arpack/step-36_ar.cc
index ba6dfbf25b..cd38d2a003 100644
--- a/tests/arpack/step-36_ar.cc
+++ b/tests/arpack/step-36_ar.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2021 by the deal.II authors
+ * Copyright (C) 2009 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/arpack/step-36_ar_shift.cc b/tests/arpack/step-36_ar_shift.cc
index 2e2929c731..028f66cfe0 100644
--- a/tests/arpack/step-36_ar_shift.cc
+++ b/tests/arpack/step-36_ar_shift.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2021 by the deal.II authors
+ * Copyright (C) 2016 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/arpack/step-36_ar_with_iterations.cc b/tests/arpack/step-36_ar_with_iterations.cc
index ba6dfbf25b..cd38d2a003 100644
--- a/tests/arpack/step-36_ar_with_iterations.cc
+++ b/tests/arpack/step-36_ar_with_iterations.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2021 by the deal.II authors
+ * Copyright (C) 2009 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/arpack/step-36_parpack_mf.cc b/tests/arpack/step-36_parpack_mf.cc
index 0e72decaec..342ca9230d 100644
--- a/tests/arpack/step-36_parpack_mf.cc
+++ b/tests/arpack/step-36_parpack_mf.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2022 by the deal.II authors
+ * Copyright (C) 2016 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/arpack/step-36_parpack_mf_02.cc b/tests/arpack/step-36_parpack_mf_02.cc
index f2a78529d1..e60144754c 100644
--- a/tests/arpack/step-36_parpack_mf_02.cc
+++ b/tests/arpack/step-36_parpack_mf_02.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2017 - 2022 by the deal.II authors
+ * Copyright (C) 2017 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/arpack/step-36_parpack_mf_03.cc b/tests/arpack/step-36_parpack_mf_03.cc
index 387f83d2e2..f157d6275d 100644
--- a/tests/arpack/step-36_parpack_mf_03.cc
+++ b/tests/arpack/step-36_parpack_mf_03.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2017 - 2022 by the deal.II authors
+ * Copyright (C) 2017 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/arpack/step-36_parpack_trilinos.cc b/tests/arpack/step-36_parpack_trilinos.cc
index f3ac6f6533..3061aa44c2 100644
--- a/tests/arpack/step-36_parpack_trilinos.cc
+++ b/tests/arpack/step-36_parpack_trilinos.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2021 by the deal.II authors
+ * Copyright (C) 2009 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/base/aligned_vector_01.cc b/tests/base/aligned_vector_01.cc
index 180e924da9..053b7ac097 100644
--- a/tests/base/aligned_vector_01.cc
+++ b/tests/base/aligned_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/anisotropic_1.cc b/tests/base/anisotropic_1.cc
index 63bfb1e844..21be8d0d6e 100644
--- a/tests/base/anisotropic_1.cc
+++ b/tests/base/anisotropic_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2019 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/anisotropic_2.cc b/tests/base/anisotropic_2.cc
index 3af5eca357..f5f5b2f5a7 100644
--- a/tests/base/anisotropic_2.cc
+++ b/tests/base/anisotropic_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/array_view_08.cc b/tests/base/array_view_08.cc
index 24370c30f9..f3aec18e4d 100644
--- a/tests/base/array_view_08.cc
+++ b/tests/base/array_view_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/array_view_22.cc b/tests/base/array_view_22.cc
index 53b371cd5c..3229d46fdb 100644
--- a/tests/base/array_view_22.cc
+++ b/tests/base/array_view_22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/auto_derivative_function.cc b/tests/base/auto_derivative_function.cc
index b297f4f88a..b8c3920132 100644
--- a/tests/base/auto_derivative_function.cc
+++ b/tests/base/auto_derivative_function.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/bounding_box_6.cc b/tests/base/bounding_box_6.cc
index 505ba924fe..b5ec294f21 100644
--- a/tests/base/bounding_box_6.cc
+++ b/tests/base/bounding_box_6.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II Authors
+// Copyright (C) 2015 - 2024 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/bounding_box_7.cc b/tests/base/bounding_box_7.cc
index fce4f37384..2c42715e1a 100644
--- a/tests/base/bounding_box_7.cc
+++ b/tests/base/bounding_box_7.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II Authors
+// Copyright (C) 2015 - 2024 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/bounding_box_data_out_01.cc b/tests/base/bounding_box_data_out_01.cc
index 03b5a47f95..59cfefa788 100644
--- a/tests/base/bounding_box_data_out_01.cc
+++ b/tests/base/bounding_box_data_out_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II Authors
+// Copyright (C) 2020 - 2024 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/bounding_box_data_out_02.cc b/tests/base/bounding_box_data_out_02.cc
index 0cbba38117..1a7a17392e 100644
--- a/tests/base/bounding_box_data_out_02.cc
+++ b/tests/base/bounding_box_data_out_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II Authors
+// Copyright (C) 2020 - 2024 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/bounding_box_data_out_03.cc b/tests/base/bounding_box_data_out_03.cc
index 2962684cb9..bac76b4580 100644
--- a/tests/base/bounding_box_data_out_03.cc
+++ b/tests/base/bounding_box_data_out_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II Authors
+// Copyright (C) 2020 - 2024 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/cell_data_storage_01.cc b/tests/base/cell_data_storage_01.cc
index c634154b68..e6bf098d0a 100644
--- a/tests/base/cell_data_storage_01.cc
+++ b/tests/base/cell_data_storage_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/cell_data_storage_02.cc b/tests/base/cell_data_storage_02.cc
index 9c077943d0..c1db61bc74 100644
--- a/tests/base/cell_data_storage_02.cc
+++ b/tests/base/cell_data_storage_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/cell_data_storage_03.cc b/tests/base/cell_data_storage_03.cc
index 82e617b828..ef83ec6d87 100644
--- a/tests/base/cell_data_storage_03.cc
+++ b/tests/base/cell_data_storage_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/coordinate_restriction.cc b/tests/base/coordinate_restriction.cc
index f9a485c213..afc2172f69 100644
--- a/tests/base/coordinate_restriction.cc
+++ b/tests/base/coordinate_restriction.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/create_higher_dim_point.cc b/tests/base/create_higher_dim_point.cc
index 893799c1f9..fe6d91d257 100644
--- a/tests/base/create_higher_dim_point.cc
+++ b/tests/base/create_higher_dim_point.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/function_derivative.cc b/tests/base/function_derivative.cc
index fa3d8cc429..4a59f20a1d 100644
--- a/tests/base/function_derivative.cc
+++ b/tests/base/function_derivative.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2018 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/function_parser_04.cc b/tests/base/function_parser_04.cc
index a10c12af14..e106094115 100644
--- a/tests/base/function_parser_04.cc
+++ b/tests/base/function_parser_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/function_signed_distance_01.cc b/tests/base/function_signed_distance_01.cc
index d2bbef9054..771e8b12b8 100644
--- a/tests/base/function_signed_distance_01.cc
+++ b/tests/base/function_signed_distance_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/function_signed_distance_02.cc b/tests/base/function_signed_distance_02.cc
index 3f802bc657..00559afb9e 100644
--- a/tests/base/function_signed_distance_02.cc
+++ b/tests/base/function_signed_distance_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/functions_04.cc b/tests/base/functions_04.cc
index 0f21bbd0ae..148c9b8c0e 100644
--- a/tests/base/functions_04.cc
+++ b/tests/base/functions_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/functions_08_gradient.cc b/tests/base/functions_08_gradient.cc
index 58ebfa02b3..038fb24fee 100644
--- a/tests/base/functions_08_gradient.cc
+++ b/tests/base/functions_08_gradient.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2018 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/functions_09.cc b/tests/base/functions_09.cc
index 29fcdc2ae4..f13bb69950 100644
--- a/tests/base/functions_09.cc
+++ b/tests/base/functions_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/functions_13.cc b/tests/base/functions_13.cc
index 6395306eff..fe7fb7fe72 100644
--- a/tests/base/functions_13.cc
+++ b/tests/base/functions_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2018 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/functions_cspline.cc b/tests/base/functions_cspline.cc
index eb71bb3834..79cb893119 100644
--- a/tests/base/functions_cspline.cc
+++ b/tests/base/functions_cspline.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/functions_cspline_02.cc b/tests/base/functions_cspline_02.cc
index d13e527123..8b7db932d6 100644
--- a/tests/base/functions_cspline_02.cc
+++ b/tests/base/functions_cspline_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/functions_singularity.cc b/tests/base/functions_singularity.cc
index 1419d4828e..c24d5b2f56 100644
--- a/tests/base/functions_singularity.cc
+++ b/tests/base/functions_singularity.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/generate_normal_random_number_01.cc b/tests/base/generate_normal_random_number_01.cc
index c05caa49d2..a295a47d40 100644
--- a/tests/base/generate_normal_random_number_01.cc
+++ b/tests/base/generate_normal_random_number_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/graph_coloring_01.cc b/tests/base/graph_coloring_01.cc
index ef9b504a1f..0a5947e687 100644
--- a/tests/base/graph_coloring_01.cc
+++ b/tests/base/graph_coloring_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/graph_coloring_02.cc b/tests/base/graph_coloring_02.cc
index 27e573eb61..6eae0d7b81 100644
--- a/tests/base/graph_coloring_02.cc
+++ b/tests/base/graph_coloring_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/graph_coloring_02a.cc b/tests/base/graph_coloring_02a.cc
index 86628eea66..bc91f52625 100644
--- a/tests/base/graph_coloring_02a.cc
+++ b/tests/base/graph_coloring_02a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/graph_coloring_03.cc b/tests/base/graph_coloring_03.cc
index 5924734642..1d5a550883 100644
--- a/tests/base/graph_coloring_03.cc
+++ b/tests/base/graph_coloring_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/graph_coloring_05.cc b/tests/base/graph_coloring_05.cc
index 2bde6fdbf9..a3d8a4abc2 100644
--- a/tests/base/graph_coloring_05.cc
+++ b/tests/base/graph_coloring_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/graph_coloring_06.cc b/tests/base/graph_coloring_06.cc
index a7efbf72a2..1f1208c17f 100644
--- a/tests/base/graph_coloring_06.cc
+++ b/tests/base/graph_coloring_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/hdf5_01.cc b/tests/base/hdf5_01.cc
index 90745d875d..55329b56db 100644
--- a/tests/base/hdf5_01.cc
+++ b/tests/base/hdf5_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2019 by the deal.II Authors
+// Copyright (C) 2015 - 2023 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/hdf5_02.cc b/tests/base/hdf5_02.cc
index 59ae7bb1e1..65b4b0412c 100644
--- a/tests/base/hdf5_02.cc
+++ b/tests/base/hdf5_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2019 by the deal.II Authors
+// Copyright (C) 2015 - 2023 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/hdf5_03.cc b/tests/base/hdf5_03.cc
index 790ffcb87a..9be248b022 100644
--- a/tests/base/hdf5_03.cc
+++ b/tests/base/hdf5_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II Authors
+// Copyright (C) 2015 - 2023 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/hdf5_04.cc b/tests/base/hdf5_04.cc
index ad6f522c0c..fa5cd2aa70 100644
--- a/tests/base/hdf5_04.cc
+++ b/tests/base/hdf5_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II Authors
+// Copyright (C) 2015 - 2023 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/hdf5_05.cc b/tests/base/hdf5_05.cc
index 881ef077fc..e4f09febf1 100644
--- a/tests/base/hdf5_05.cc
+++ b/tests/base/hdf5_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II Authors
+// Copyright (C) 2015 - 2023 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/hdf5_06.cc b/tests/base/hdf5_06.cc
index 8dfe446379..1e21b2ae7f 100644
--- a/tests/base/hdf5_06.cc
+++ b/tests/base/hdf5_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II Authors
+// Copyright (C) 2015 - 2023 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/hdf5_07.cc b/tests/base/hdf5_07.cc
index f0eef984a0..2aff281e8a 100644
--- a/tests/base/hdf5_07.cc
+++ b/tests/base/hdf5_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II Authors
+// Copyright (C) 2015 - 2023 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/index_set_32.cc b/tests/base/index_set_32.cc
index 30a2da2ab1..4739cd76ed 100644
--- a/tests/base/index_set_32.cc
+++ b/tests/base/index_set_32.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/index_set_34.cc b/tests/base/index_set_34.cc
index 69b870b11f..9d81700d4f 100644
--- a/tests/base/index_set_34.cc
+++ b/tests/base/index_set_34.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/index_set_35.cc b/tests/base/index_set_35.cc
index dd44e0a775..35082e755e 100644
--- a/tests/base/index_set_35.cc
+++ b/tests/base/index_set_35.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/index_set_36.cc b/tests/base/index_set_36.cc
index e8ccab3975..d171094624 100644
--- a/tests/base/index_set_36.cc
+++ b/tests/base/index_set_36.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/index_set_37.cc b/tests/base/index_set_37.cc
index 0594a5716f..6fa3609521 100644
--- a/tests/base/index_set_37.cc
+++ b/tests/base/index_set_37.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/index_set_38.cc b/tests/base/index_set_38.cc
index 81781231d3..4069900eec 100644
--- a/tests/base/index_set_38.cc
+++ b/tests/base/index_set_38.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/kokkos_point.cc b/tests/base/kokkos_point.cc
index 8cc9edf93c..3841264a87 100644
--- a/tests/base/kokkos_point.cc
+++ b/tests/base/kokkos_point.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/lazy_01.cc b/tests/base/lazy_01.cc
index cfcda8913f..fb3e43fa9f 100644
--- a/tests/base/lazy_01.cc
+++ b/tests/base/lazy_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 - 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/lazy_02.cc b/tests/base/lazy_02.cc
index 702ec691ec..03715803fa 100644
--- a/tests/base/lazy_02.cc
+++ b/tests/base/lazy_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/lazy_03.cc b/tests/base/lazy_03.cc
index 1a3503cd2c..6259258eec 100644
--- a/tests/base/lazy_03.cc
+++ b/tests/base/lazy_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/lazy_04.cc b/tests/base/lazy_04.cc
index 6b80ec126b..3d2fa10481 100644
--- a/tests/base/lazy_04.cc
+++ b/tests/base/lazy_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/lazy_05.cc b/tests/base/lazy_05.cc
index 6bb96c3741..f55499d75b 100644
--- a/tests/base/lazy_05.cc
+++ b/tests/base/lazy_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/mpi_some_to_some_01.cc b/tests/base/mpi_some_to_some_01.cc
index 36b63f8567..6fc7e0bd51 100644
--- a/tests/base/mpi_some_to_some_01.cc
+++ b/tests/base/mpi_some_to_some_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/mutable_bind_01.cc b/tests/base/mutable_bind_01.cc
index fa1cc92ad1..a25183d78b 100644
--- a/tests/base/mutable_bind_01.cc
+++ b/tests/base/mutable_bind_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/mutable_bind_02.cc b/tests/base/mutable_bind_02.cc
index 763fd87886..7545d0db46 100644
--- a/tests/base/mutable_bind_02.cc
+++ b/tests/base/mutable_bind_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/mutable_bind_03.cc b/tests/base/mutable_bind_03.cc
index 8f583fd543..956c4cedb8 100644
--- a/tests/base/mutable_bind_03.cc
+++ b/tests/base/mutable_bind_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/mutable_bind_04.cc b/tests/base/mutable_bind_04.cc
index 2dd02facff..6291074725 100644
--- a/tests/base/mutable_bind_04.cc
+++ b/tests/base/mutable_bind_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/ndarray.cc b/tests/base/ndarray.cc
index f66d225ffb..52310737a0 100644
--- a/tests/base/ndarray.cc
+++ b/tests/base/ndarray.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/point_01.cc b/tests/base/point_01.cc
index fc42beecd4..653fd14060 100644
--- a/tests/base/point_01.cc
+++ b/tests/base/point_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/point_02.cc b/tests/base/point_02.cc
index fca5e46be2..c461511da0 100644
--- a/tests/base/point_02.cc
+++ b/tests/base/point_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/point_04.cc b/tests/base/point_04.cc
index ba911ccd19..788ba29019 100644
--- a/tests/base/point_04.cc
+++ b/tests/base/point_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/point_05.cc b/tests/base/point_05.cc
index 1d1b019139..f9b3d011cd 100644
--- a/tests/base/point_05.cc
+++ b/tests/base/point_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/point_constexpr.cc b/tests/base/point_constexpr.cc
index 0506acb393..7b9e5e6104 100644
--- a/tests/base/point_constexpr.cc
+++ b/tests/base/point_constexpr.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/point_restriction.cc b/tests/base/point_restriction.cc
index 913809e0cb..32a687acdd 100644
--- a/tests/base/point_restriction.cc
+++ b/tests/base/point_restriction.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/polynomial1d.cc b/tests/base/polynomial1d.cc
index c071893bce..4857a88b79 100644
--- a/tests/base/polynomial1d.cc
+++ b/tests/base/polynomial1d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/polynomial_lagrange.cc b/tests/base/polynomial_lagrange.cc
index c51318c314..e48ecda730 100644
--- a/tests/base/polynomial_lagrange.cc
+++ b/tests/base/polynomial_lagrange.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/polynomial_lagrange_order.cc b/tests/base/polynomial_lagrange_order.cc
index c4ee2b996c..dcad217049 100644
--- a/tests/base/polynomial_lagrange_order.cc
+++ b/tests/base/polynomial_lagrange_order.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/polynomial_test.cc b/tests/base/polynomial_test.cc
index bcc387e0a1..76685f4353 100644
--- a/tests/base/polynomial_test.cc
+++ b/tests/base/polynomial_test.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2019 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/polynomials_tensor.cc b/tests/base/polynomials_tensor.cc
index b256d63844..b559d0acea 100644
--- a/tests/base/polynomials_tensor.cc
+++ b/tests/base/polynomials_tensor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/qprojector.cc b/tests/base/qprojector.cc
index cd109fd22b..5a1402bcb7 100644
--- a/tests/base/qprojector.cc
+++ b/tests/base/qprojector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/quadrature_chebyshev.cc b/tests/base/quadrature_chebyshev.cc
index 45a3cfdf5b..d16cefb1e2 100644
--- a/tests/base/quadrature_chebyshev.cc
+++ b/tests/base/quadrature_chebyshev.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/quadrature_check_tensor_product.cc b/tests/base/quadrature_check_tensor_product.cc
index 7d4300929c..a13f550eac 100644
--- a/tests/base/quadrature_check_tensor_product.cc
+++ b/tests/base/quadrature_check_tensor_product.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/quadrature_point_data.cc b/tests/base/quadrature_point_data.cc
index 091757f28c..87ff267e21 100644
--- a/tests/base/quadrature_point_data.cc
+++ b/tests/base/quadrature_point_data.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/quadrature_point_data_02.cc b/tests/base/quadrature_point_data_02.cc
index fe9be85713..b9e56d3edd 100644
--- a/tests/base/quadrature_point_data_02.cc
+++ b/tests/base/quadrature_point_data_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/quadrature_point_data_03.cc b/tests/base/quadrature_point_data_03.cc
index 192b49a812..c705262932 100644
--- a/tests/base/quadrature_point_data_03.cc
+++ b/tests/base/quadrature_point_data_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/quadrature_qiterated_01.cc b/tests/base/quadrature_qiterated_01.cc
index 05e69be7c8..7888f148ab 100644
--- a/tests/base/quadrature_qiterated_01.cc
+++ b/tests/base/quadrature_qiterated_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/quadrature_selector.cc b/tests/base/quadrature_selector.cc
index bb16d523a2..a765c60c67 100644
--- a/tests/base/quadrature_selector.cc
+++ b/tests/base/quadrature_selector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2019 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/quadrature_sorted_test.cc b/tests/base/quadrature_sorted_test.cc
index 1ac60a59f3..850781abfb 100644
--- a/tests/base/quadrature_sorted_test.cc
+++ b/tests/base/quadrature_sorted_test.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/quadrature_test.cc b/tests/base/quadrature_test.cc
index 80d3672dd7..b35837fcdf 100644
--- a/tests/base/quadrature_test.cc
+++ b/tests/base/quadrature_test.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/std_cxx20_functional.cc b/tests/base/std_cxx20_functional.cc
index df724e0381..3523fd04bd 100644
--- a/tests/base/std_cxx20_functional.cc
+++ b/tests/base/std_cxx20_functional.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/taylor_estimate_function_bounds.cc b/tests/base/taylor_estimate_function_bounds.cc
index df042b702f..d8f5037055 100644
--- a/tests/base/taylor_estimate_function_bounds.cc
+++ b/tests/base/taylor_estimate_function_bounds.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/time_stepping_01.cc b/tests/base/time_stepping_01.cc
index 5fca0fb3da..b916f47be7 100644
--- a/tests/base/time_stepping_01.cc
+++ b/tests/base/time_stepping_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/time_stepping_02.cc b/tests/base/time_stepping_02.cc
index 9cbdd5da6f..eb56d505f2 100644
--- a/tests/base/time_stepping_02.cc
+++ b/tests/base/time_stepping_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2018 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/timer_07.cc b/tests/base/timer_07.cc
index 895cb5cece..a97383ab10 100644
--- a/tests/base/timer_07.cc
+++ b/tests/base/timer_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/transpose_table_iterators_1.cc b/tests/base/transpose_table_iterators_1.cc
index c5ac158ff3..efec2de9db 100644
--- a/tests/base/transpose_table_iterators_1.cc
+++ b/tests/base/transpose_table_iterators_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/unsubscribe_subscriptor.cc b/tests/base/unsubscribe_subscriptor.cc
index 00a978e63a..df78ae3b4e 100644
--- a/tests/base/unsubscribe_subscriptor.cc
+++ b/tests/base/unsubscribe_subscriptor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2019 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/base/unsubscribe_subscriptor_01.cc b/tests/base/unsubscribe_subscriptor_01.cc
index c25a1cd4a0..eb3344a44f 100644
--- a/tests/base/unsubscribe_subscriptor_01.cc
+++ b/tests/base/unsubscribe_subscriptor_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2019 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/anna_4.cc b/tests/bits/anna_4.cc
index ca79734351..6ef4ec4c18 100644
--- a/tests/bits/anna_4.cc
+++ b/tests/bits/anna_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/anna_6.cc b/tests/bits/anna_6.cc
index 5bf44d638a..ae1b248547 100644
--- a/tests/bits/anna_6.cc
+++ b/tests/bits/anna_6.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/apply_boundary_values_01.cc b/tests/bits/apply_boundary_values_01.cc
index b0be1e2ad8..d593d3ab47 100644
--- a/tests/bits/apply_boundary_values_01.cc
+++ b/tests/bits/apply_boundary_values_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/apply_boundary_values_02.cc b/tests/bits/apply_boundary_values_02.cc
index 191d563ee4..d5a9052bde 100644
--- a/tests/bits/apply_boundary_values_02.cc
+++ b/tests/bits/apply_boundary_values_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/apply_boundary_values_03.cc b/tests/bits/apply_boundary_values_03.cc
index ffd09f934d..ab5ba859bb 100644
--- a/tests/bits/apply_boundary_values_03.cc
+++ b/tests/bits/apply_boundary_values_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/apply_boundary_values_04.cc b/tests/bits/apply_boundary_values_04.cc
index fbd8f960f4..99d7d666bd 100644
--- a/tests/bits/apply_boundary_values_04.cc
+++ b/tests/bits/apply_boundary_values_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/block_sparse_matrix_iterator_01.cc b/tests/bits/block_sparse_matrix_iterator_01.cc
index bb1f9646a2..b36ed2fb37 100644
--- a/tests/bits/block_sparse_matrix_iterator_01.cc
+++ b/tests/bits/block_sparse_matrix_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/block_sparse_matrix_iterator_02.cc b/tests/bits/block_sparse_matrix_iterator_02.cc
index d7bad85228..126b88238e 100644
--- a/tests/bits/block_sparse_matrix_iterator_02.cc
+++ b/tests/bits/block_sparse_matrix_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/block_sparse_matrix_iterator_04.cc b/tests/bits/block_sparse_matrix_iterator_04.cc
index c7ac17f032..672cd490a2 100644
--- a/tests/bits/block_sparse_matrix_iterator_04.cc
+++ b/tests/bits/block_sparse_matrix_iterator_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/block_sparse_matrix_iterator_05.cc b/tests/bits/block_sparse_matrix_iterator_05.cc
index 753b6b6041..a5755374b3 100644
--- a/tests/bits/block_sparse_matrix_iterator_05.cc
+++ b/tests/bits/block_sparse_matrix_iterator_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/block_vector_iterator_01.cc b/tests/bits/block_vector_iterator_01.cc
index d9afdbf338..c91f569edc 100644
--- a/tests/bits/block_vector_iterator_01.cc
+++ b/tests/bits/block_vector_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/block_vector_iterator_02.cc b/tests/bits/block_vector_iterator_02.cc
index 9bc0641dd0..632f430edd 100644
--- a/tests/bits/block_vector_iterator_02.cc
+++ b/tests/bits/block_vector_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/block_vector_vector_01.cc b/tests/bits/block_vector_vector_01.cc
index f85865fd6d..7f7d45d733 100644
--- a/tests/bits/block_vector_vector_01.cc
+++ b/tests/bits/block_vector_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/christian_1.cc b/tests/bits/christian_1.cc
index 742aab935b..34c6a81612 100644
--- a/tests/bits/christian_1.cc
+++ b/tests/bits/christian_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_00.cc b/tests/bits/chunk_sparse_matrix_00.cc
index 56b11aceec..7dc4699fc5 100644
--- a/tests/bits/chunk_sparse_matrix_00.cc
+++ b/tests/bits/chunk_sparse_matrix_00.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_01.cc b/tests/bits/chunk_sparse_matrix_01.cc
index ae520d46fc..a33061d9eb 100644
--- a/tests/bits/chunk_sparse_matrix_01.cc
+++ b/tests/bits/chunk_sparse_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_01a.cc b/tests/bits/chunk_sparse_matrix_01a.cc
index 157861eeaa..8f919273d2 100644
--- a/tests/bits/chunk_sparse_matrix_01a.cc
+++ b/tests/bits/chunk_sparse_matrix_01a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_02.cc b/tests/bits/chunk_sparse_matrix_02.cc
index 45099db417..dbf896daa5 100644
--- a/tests/bits/chunk_sparse_matrix_02.cc
+++ b/tests/bits/chunk_sparse_matrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_03.cc b/tests/bits/chunk_sparse_matrix_03.cc
index 6e94205886..ded974502b 100644
--- a/tests/bits/chunk_sparse_matrix_03.cc
+++ b/tests/bits/chunk_sparse_matrix_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_03a.cc b/tests/bits/chunk_sparse_matrix_03a.cc
index aa50a2533d..873409ba16 100644
--- a/tests/bits/chunk_sparse_matrix_03a.cc
+++ b/tests/bits/chunk_sparse_matrix_03a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_04.cc b/tests/bits/chunk_sparse_matrix_04.cc
index 64fa04b05f..694b303b17 100644
--- a/tests/bits/chunk_sparse_matrix_04.cc
+++ b/tests/bits/chunk_sparse_matrix_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_05.cc b/tests/bits/chunk_sparse_matrix_05.cc
index 572515fbef..15d54a1c86 100644
--- a/tests/bits/chunk_sparse_matrix_05.cc
+++ b/tests/bits/chunk_sparse_matrix_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_05a.cc b/tests/bits/chunk_sparse_matrix_05a.cc
index f77fab00e4..fa92c8860c 100644
--- a/tests/bits/chunk_sparse_matrix_05a.cc
+++ b/tests/bits/chunk_sparse_matrix_05a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_06.cc b/tests/bits/chunk_sparse_matrix_06.cc
index 4a02a93492..f0c6bf9ff2 100644
--- a/tests/bits/chunk_sparse_matrix_06.cc
+++ b/tests/bits/chunk_sparse_matrix_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_07.cc b/tests/bits/chunk_sparse_matrix_07.cc
index efaa622692..6fb2bd6b57 100644
--- a/tests/bits/chunk_sparse_matrix_07.cc
+++ b/tests/bits/chunk_sparse_matrix_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_08.cc b/tests/bits/chunk_sparse_matrix_08.cc
index dabf91f768..a0b1e41fc7 100644
--- a/tests/bits/chunk_sparse_matrix_08.cc
+++ b/tests/bits/chunk_sparse_matrix_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_09.cc b/tests/bits/chunk_sparse_matrix_09.cc
index 1679d3fb2e..367c1d7dd2 100644
--- a/tests/bits/chunk_sparse_matrix_09.cc
+++ b/tests/bits/chunk_sparse_matrix_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_10.cc b/tests/bits/chunk_sparse_matrix_10.cc
index be60068f9c..fc870ae1be 100644
--- a/tests/bits/chunk_sparse_matrix_10.cc
+++ b/tests/bits/chunk_sparse_matrix_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_11.cc b/tests/bits/chunk_sparse_matrix_11.cc
index 992d356cf0..34127f5651 100644
--- a/tests/bits/chunk_sparse_matrix_11.cc
+++ b/tests/bits/chunk_sparse_matrix_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_12.cc b/tests/bits/chunk_sparse_matrix_12.cc
index ac9314c06d..9c38bd612b 100644
--- a/tests/bits/chunk_sparse_matrix_12.cc
+++ b/tests/bits/chunk_sparse_matrix_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_13.cc b/tests/bits/chunk_sparse_matrix_13.cc
index ec7e4e59d9..d6a3e16a9c 100644
--- a/tests/bits/chunk_sparse_matrix_13.cc
+++ b/tests/bits/chunk_sparse_matrix_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_14.cc b/tests/bits/chunk_sparse_matrix_14.cc
index 5038b59f4c..7a839f783c 100644
--- a/tests/bits/chunk_sparse_matrix_14.cc
+++ b/tests/bits/chunk_sparse_matrix_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_15.cc b/tests/bits/chunk_sparse_matrix_15.cc
index 68e4a615f1..21456a037e 100644
--- a/tests/bits/chunk_sparse_matrix_15.cc
+++ b/tests/bits/chunk_sparse_matrix_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_16.cc b/tests/bits/chunk_sparse_matrix_16.cc
index e184dc6cf9..cfe22d4037 100644
--- a/tests/bits/chunk_sparse_matrix_16.cc
+++ b/tests/bits/chunk_sparse_matrix_16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_01.cc b/tests/bits/chunk_sparse_matrix_iterator_01.cc
index adcbc7e4c0..bed6221e74 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_01.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_02.cc b/tests/bits/chunk_sparse_matrix_iterator_02.cc
index eda831b7ed..23dd2a4e4c 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_02.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_03.cc b/tests/bits/chunk_sparse_matrix_iterator_03.cc
index 7bc29fbe3e..d99ed35c21 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_03.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_04.cc b/tests/bits/chunk_sparse_matrix_iterator_04.cc
index 5c11c9f56f..140dbbd6b9 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_04.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_05.cc b/tests/bits/chunk_sparse_matrix_iterator_05.cc
index 89a69ba2a7..09b5d38948 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_05.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_06.cc b/tests/bits/chunk_sparse_matrix_iterator_06.cc
index 93b3d5e762..0c8f3b6488 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_06.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_07.cc b/tests/bits/chunk_sparse_matrix_iterator_07.cc
index ab3aa6eca3..c9de89fc0f 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_07.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_08.cc b/tests/bits/chunk_sparse_matrix_iterator_08.cc
index 6c93df309b..0f22f1df67 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_08.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_09.cc b/tests/bits/chunk_sparse_matrix_iterator_09.cc
index 469a04bb0a..88a1d1ea8b 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_09.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_10.cc b/tests/bits/chunk_sparse_matrix_iterator_10.cc
index 473db655dc..43c8d091d9 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_10.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_11.cc b/tests/bits/chunk_sparse_matrix_iterator_11.cc
index 728b1a9e60..95d86af77b 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_11.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_12.cc b/tests/bits/chunk_sparse_matrix_iterator_12.cc
index 64aa506684..0cedfa1958 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_12.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_iterator_13.cc b/tests/bits/chunk_sparse_matrix_iterator_13.cc
index d6fa202c93..3efdfeb48b 100644
--- a/tests/bits/chunk_sparse_matrix_iterator_13.cc
+++ b/tests/bits/chunk_sparse_matrix_iterator_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_vector_01.cc b/tests/bits/chunk_sparse_matrix_vector_01.cc
index ebf45dae84..ffecbf7430 100644
--- a/tests/bits/chunk_sparse_matrix_vector_01.cc
+++ b/tests/bits/chunk_sparse_matrix_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_vector_02.cc b/tests/bits/chunk_sparse_matrix_vector_02.cc
index 01af4e0046..4c5d86acc1 100644
--- a/tests/bits/chunk_sparse_matrix_vector_02.cc
+++ b/tests/bits/chunk_sparse_matrix_vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_vector_03.cc b/tests/bits/chunk_sparse_matrix_vector_03.cc
index bdd99be3ea..8150e860f8 100644
--- a/tests/bits/chunk_sparse_matrix_vector_03.cc
+++ b/tests/bits/chunk_sparse_matrix_vector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_vector_04.cc b/tests/bits/chunk_sparse_matrix_vector_04.cc
index 6e6a058e6f..2dddb7cea0 100644
--- a/tests/bits/chunk_sparse_matrix_vector_04.cc
+++ b/tests/bits/chunk_sparse_matrix_vector_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_vector_05.cc b/tests/bits/chunk_sparse_matrix_vector_05.cc
index b9f946c4c9..e1a4762a6a 100644
--- a/tests/bits/chunk_sparse_matrix_vector_05.cc
+++ b/tests/bits/chunk_sparse_matrix_vector_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_vector_06.cc b/tests/bits/chunk_sparse_matrix_vector_06.cc
index dffc1aad59..09ccbddaec 100644
--- a/tests/bits/chunk_sparse_matrix_vector_06.cc
+++ b/tests/bits/chunk_sparse_matrix_vector_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/chunk_sparse_matrix_vector_07.cc b/tests/bits/chunk_sparse_matrix_vector_07.cc
index 0c24b1e836..26f524f99a 100644
--- a/tests/bits/chunk_sparse_matrix_vector_07.cc
+++ b/tests/bits/chunk_sparse_matrix_vector_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/coarsening_3d.cc b/tests/bits/coarsening_3d.cc
index 738aa9bb08..d4274111f5 100644
--- a/tests/bits/coarsening_3d.cc
+++ b/tests/bits/coarsening_3d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/cone_04.cc b/tests/bits/cone_04.cc
index abddbd8c16..b6bb59b130 100644
--- a/tests/bits/cone_04.cc
+++ b/tests/bits/cone_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/cylinder.cc b/tests/bits/cylinder.cc
index e043db7952..e00e50fdad 100644
--- a/tests/bits/cylinder.cc
+++ b/tests/bits/cylinder.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/deal_solver_04.cc b/tests/bits/deal_solver_04.cc
index 93ff6a0fd2..487a0cbaf2 100644
--- a/tests/bits/deal_solver_04.cc
+++ b/tests/bits/deal_solver_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/deal_solver_05.cc b/tests/bits/deal_solver_05.cc
index d5a83044ce..8283d50663 100644
--- a/tests/bits/deal_solver_05.cc
+++ b/tests/bits/deal_solver_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/denis_1.cc b/tests/bits/denis_1.cc
index e8ae103817..0cce6efe41 100644
--- a/tests/bits/denis_1.cc
+++ b/tests/bits/denis_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/distorted_cells_01.cc b/tests/bits/distorted_cells_01.cc
index a294a30fc5..04c62db479 100644
--- a/tests/bits/distorted_cells_01.cc
+++ b/tests/bits/distorted_cells_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/distorted_cells_02.cc b/tests/bits/distorted_cells_02.cc
index 3de85fbdf0..3515153ce4 100644
--- a/tests/bits/distorted_cells_02.cc
+++ b/tests/bits/distorted_cells_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/distorted_cells_06.cc b/tests/bits/distorted_cells_06.cc
index 8acb90ffec..51593f929d 100644
--- a/tests/bits/distorted_cells_06.cc
+++ b/tests/bits/distorted_cells_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/distorted_cells_07.cc b/tests/bits/distorted_cells_07.cc
index 7b4abdc16a..3727a2e352 100644
--- a/tests/bits/distorted_cells_07.cc
+++ b/tests/bits/distorted_cells_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/error_estimator_01.cc b/tests/bits/error_estimator_01.cc
index 49986feec4..95f0fcc58c 100644
--- a/tests/bits/error_estimator_01.cc
+++ b/tests/bits/error_estimator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/error_estimator_02.cc b/tests/bits/error_estimator_02.cc
index 613e75b5fe..0efe134764 100644
--- a/tests/bits/error_estimator_02.cc
+++ b/tests/bits/error_estimator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/faceq_face_interpolation.cc b/tests/bits/faceq_face_interpolation.cc
index 4da381652f..321b1b39e2 100644
--- a/tests/bits/faceq_face_interpolation.cc
+++ b/tests/bits/faceq_face_interpolation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/faceq_subface_interpolation.cc b/tests/bits/faceq_subface_interpolation.cc
index 09215e5355..a28caece9f 100644
--- a/tests/bits/faceq_subface_interpolation.cc
+++ b/tests/bits/faceq_subface_interpolation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/fe_q_constraints.cc b/tests/bits/fe_q_constraints.cc
index be4b3d4098..994427a7bc 100644
--- a/tests/bits/fe_q_constraints.cc
+++ b/tests/bits/fe_q_constraints.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/fe_tools_01a.cc b/tests/bits/fe_tools_01a.cc
index a19de29ba0..98dc6909cd 100644
--- a/tests/bits/fe_tools_01a.cc
+++ b/tests/bits/fe_tools_01a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/fe_tools_01b.cc b/tests/bits/fe_tools_01b.cc
index 7ea6c6bc12..6c0efc58fc 100644
--- a/tests/bits/fe_tools_01b.cc
+++ b/tests/bits/fe_tools_01b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/fe_tools_01c.cc b/tests/bits/fe_tools_01c.cc
index 74e0736e2a..719b57a952 100644
--- a/tests/bits/fe_tools_01c.cc
+++ b/tests/bits/fe_tools_01c.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/fe_tools_common.h b/tests/bits/fe_tools_common.h
index 241ab6835e..690e5a6bd8 100644
--- a/tests/bits/fe_tools_common.h
+++ b/tests/bits/fe_tools_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/fe_tools_cpfqpm_05.cc b/tests/bits/fe_tools_cpfqpm_05.cc
index 8657df4cb4..2cba1c8c3e 100644
--- a/tests/bits/fe_tools_cpfqpm_05.cc
+++ b/tests/bits/fe_tools_cpfqpm_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/find_cell_10.cc b/tests/bits/find_cell_10.cc
index dad4104723..91ccebb64f 100644
--- a/tests/bits/find_cell_10.cc
+++ b/tests/bits/find_cell_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/find_cell_10a.cc b/tests/bits/find_cell_10a.cc
index 3bb3ce2da1..72dea7c9f4 100644
--- a/tests/bits/find_cell_10a.cc
+++ b/tests/bits/find_cell_10a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/find_cell_11.cc b/tests/bits/find_cell_11.cc
index 13f4d8056e..0f5003df8c 100644
--- a/tests/bits/find_cell_11.cc
+++ b/tests/bits/find_cell_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/find_cell_12.cc b/tests/bits/find_cell_12.cc
index 2ce67b3261..5015bad0fe 100644
--- a/tests/bits/find_cell_12.cc
+++ b/tests/bits/find_cell_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/gerold_1.cc b/tests/bits/gerold_1.cc
index b18db0b47c..e5e92ac84c 100644
--- a/tests/bits/gerold_1.cc
+++ b/tests/bits/gerold_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2018 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/gerold_2.cc b/tests/bits/gerold_2.cc
index 554c877d6c..5aa10a7f66 100644
--- a/tests/bits/gerold_2.cc
+++ b/tests/bits/gerold_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2018 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/joa_1.cc b/tests/bits/joa_1.cc
index a14d221578..a3978100e9 100644
--- a/tests/bits/joa_1.cc
+++ b/tests/bits/joa_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/make_boundary_constraints_01.cc b/tests/bits/make_boundary_constraints_01.cc
index 6e0989c07d..8552adf2f7 100644
--- a/tests/bits/make_boundary_constraints_01.cc
+++ b/tests/bits/make_boundary_constraints_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/make_boundary_constraints_02.cc b/tests/bits/make_boundary_constraints_02.cc
index 8203b7897b..66d811ffc3 100644
--- a/tests/bits/make_boundary_constraints_02.cc
+++ b/tests/bits/make_boundary_constraints_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/make_boundary_constraints_03.cc b/tests/bits/make_boundary_constraints_03.cc
index 6e784756d7..5c1f5a8857 100644
--- a/tests/bits/make_boundary_constraints_03.cc
+++ b/tests/bits/make_boundary_constraints_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/neighboring_cells_at_two_faces.cc b/tests/bits/neighboring_cells_at_two_faces.cc
index 41b1ce22c9..5911d35542 100644
--- a/tests/bits/neighboring_cells_at_two_faces.cc
+++ b/tests/bits/neighboring_cells_at_two_faces.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/periodic_flux_coupling_01.cc b/tests/bits/periodic_flux_coupling_01.cc
index 8fc6435159..6564e4a54f 100644
--- a/tests/bits/periodic_flux_coupling_01.cc
+++ b/tests/bits/periodic_flux_coupling_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/periodicity_04.cc b/tests/bits/periodicity_04.cc
index bbfa67299b..ec52710bbe 100644
--- a/tests/bits/periodicity_04.cc
+++ b/tests/bits/periodicity_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/periodicity_06.cc b/tests/bits/periodicity_06.cc
index ca93fb1adf..19451b9bdb 100644
--- a/tests/bits/periodicity_06.cc
+++ b/tests/bits/periodicity_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/periodicity_07.cc b/tests/bits/periodicity_07.cc
index 1361445cd0..2fe06343fc 100644
--- a/tests/bits/periodicity_07.cc
+++ b/tests/bits/periodicity_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/point_gradient_01.cc b/tests/bits/point_gradient_01.cc
index 5a9d8004bc..b482bf6032 100644
--- a/tests/bits/point_gradient_01.cc
+++ b/tests/bits/point_gradient_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/point_gradient_02.cc b/tests/bits/point_gradient_02.cc
index c22f773f38..efe0991ba9 100644
--- a/tests/bits/point_gradient_02.cc
+++ b/tests/bits/point_gradient_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/point_gradient_hp_01.cc b/tests/bits/point_gradient_hp_01.cc
index f521c506ab..264fc0e40c 100644
--- a/tests/bits/point_gradient_hp_01.cc
+++ b/tests/bits/point_gradient_hp_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/point_gradient_hp_02.cc b/tests/bits/point_gradient_hp_02.cc
index a4792556b8..03dba3df48 100644
--- a/tests/bits/point_gradient_hp_02.cc
+++ b/tests/bits/point_gradient_hp_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/point_inside_1.cc b/tests/bits/point_inside_1.cc
index 69c56ceaff..f1969a4ce4 100644
--- a/tests/bits/point_inside_1.cc
+++ b/tests/bits/point_inside_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/point_inside_2.cc b/tests/bits/point_inside_2.cc
index e012f851fa..5e4c70d1de 100644
--- a/tests/bits/point_inside_2.cc
+++ b/tests/bits/point_inside_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/point_value_03.cc b/tests/bits/point_value_03.cc
index 3853a9f4c3..5c23c6c2c2 100644
--- a/tests/bits/point_value_03.cc
+++ b/tests/bits/point_value_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/q_points.cc b/tests/bits/q_points.cc
index 8f848a48a0..abf96392a3 100644
--- a/tests/bits/q_points.cc
+++ b/tests/bits/q_points.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_01.cc b/tests/bits/sparse_matrix_01.cc
index c6f212d623..0a036fad7d 100644
--- a/tests/bits/sparse_matrix_01.cc
+++ b/tests/bits/sparse_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_02.cc b/tests/bits/sparse_matrix_02.cc
index 3056f14c0a..139cf1ba30 100644
--- a/tests/bits/sparse_matrix_02.cc
+++ b/tests/bits/sparse_matrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_03.cc b/tests/bits/sparse_matrix_03.cc
index c3b3bb433a..39a1d1b587 100644
--- a/tests/bits/sparse_matrix_03.cc
+++ b/tests/bits/sparse_matrix_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_03a.cc b/tests/bits/sparse_matrix_03a.cc
index 6d37713d20..89ae625feb 100644
--- a/tests/bits/sparse_matrix_03a.cc
+++ b/tests/bits/sparse_matrix_03a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_04.cc b/tests/bits/sparse_matrix_04.cc
index 440ac4def5..7b901e7919 100644
--- a/tests/bits/sparse_matrix_04.cc
+++ b/tests/bits/sparse_matrix_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_05.cc b/tests/bits/sparse_matrix_05.cc
index af32463193..8e79fa89f1 100644
--- a/tests/bits/sparse_matrix_05.cc
+++ b/tests/bits/sparse_matrix_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_05a.cc b/tests/bits/sparse_matrix_05a.cc
index 39cdff16e2..a8856422f2 100644
--- a/tests/bits/sparse_matrix_05a.cc
+++ b/tests/bits/sparse_matrix_05a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_06.cc b/tests/bits/sparse_matrix_06.cc
index e35f3b411e..5b9656bbe0 100644
--- a/tests/bits/sparse_matrix_06.cc
+++ b/tests/bits/sparse_matrix_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_07.cc b/tests/bits/sparse_matrix_07.cc
index d1ea062eba..4fe8c7d1a7 100644
--- a/tests/bits/sparse_matrix_07.cc
+++ b/tests/bits/sparse_matrix_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_08.cc b/tests/bits/sparse_matrix_08.cc
index d2aaf8e980..ab6281191f 100644
--- a/tests/bits/sparse_matrix_08.cc
+++ b/tests/bits/sparse_matrix_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_09.cc b/tests/bits/sparse_matrix_09.cc
index a7eecc20e8..06d654db4b 100644
--- a/tests/bits/sparse_matrix_09.cc
+++ b/tests/bits/sparse_matrix_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_10.cc b/tests/bits/sparse_matrix_10.cc
index c719476a1f..1359ef6d71 100644
--- a/tests/bits/sparse_matrix_10.cc
+++ b/tests/bits/sparse_matrix_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_add_entries_01.cc b/tests/bits/sparse_matrix_add_entries_01.cc
index ef69d8952a..6ed66a014a 100644
--- a/tests/bits/sparse_matrix_add_entries_01.cc
+++ b/tests/bits/sparse_matrix_add_entries_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_add_entries_02.cc b/tests/bits/sparse_matrix_add_entries_02.cc
index c6c173084b..efbdcdce90 100644
--- a/tests/bits/sparse_matrix_add_entries_02.cc
+++ b/tests/bits/sparse_matrix_add_entries_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_add_entries_03.cc b/tests/bits/sparse_matrix_add_entries_03.cc
index c1612ad4fd..98b314f7c3 100644
--- a/tests/bits/sparse_matrix_add_entries_03.cc
+++ b/tests/bits/sparse_matrix_add_entries_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_add_entries_04.cc b/tests/bits/sparse_matrix_add_entries_04.cc
index f01efb8e05..cded468b58 100644
--- a/tests/bits/sparse_matrix_add_entries_04.cc
+++ b/tests/bits/sparse_matrix_add_entries_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_add_entries_05.cc b/tests/bits/sparse_matrix_add_entries_05.cc
index dc36d13813..750741d1c3 100644
--- a/tests/bits/sparse_matrix_add_entries_05.cc
+++ b/tests/bits/sparse_matrix_add_entries_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_add_entries_06.cc b/tests/bits/sparse_matrix_add_entries_06.cc
index 918dddabc9..8c12127db0 100644
--- a/tests/bits/sparse_matrix_add_entries_06.cc
+++ b/tests/bits/sparse_matrix_add_entries_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_01.cc b/tests/bits/sparse_matrix_iterator_01.cc
index 551c8f88f1..b1ed5343ba 100644
--- a/tests/bits/sparse_matrix_iterator_01.cc
+++ b/tests/bits/sparse_matrix_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_02.cc b/tests/bits/sparse_matrix_iterator_02.cc
index f1e43df753..b06ed91a3e 100644
--- a/tests/bits/sparse_matrix_iterator_02.cc
+++ b/tests/bits/sparse_matrix_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_03.cc b/tests/bits/sparse_matrix_iterator_03.cc
index cf5b406647..7afea9f132 100644
--- a/tests/bits/sparse_matrix_iterator_03.cc
+++ b/tests/bits/sparse_matrix_iterator_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_04.cc b/tests/bits/sparse_matrix_iterator_04.cc
index 61cee35779..91e176c05c 100644
--- a/tests/bits/sparse_matrix_iterator_04.cc
+++ b/tests/bits/sparse_matrix_iterator_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_05.cc b/tests/bits/sparse_matrix_iterator_05.cc
index a09305ed13..b41e06e61b 100644
--- a/tests/bits/sparse_matrix_iterator_05.cc
+++ b/tests/bits/sparse_matrix_iterator_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_06.cc b/tests/bits/sparse_matrix_iterator_06.cc
index 2ccdfdbdc6..aec58bfdf0 100644
--- a/tests/bits/sparse_matrix_iterator_06.cc
+++ b/tests/bits/sparse_matrix_iterator_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_07.cc b/tests/bits/sparse_matrix_iterator_07.cc
index ec85c903cd..fc4ca4462e 100644
--- a/tests/bits/sparse_matrix_iterator_07.cc
+++ b/tests/bits/sparse_matrix_iterator_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_08.cc b/tests/bits/sparse_matrix_iterator_08.cc
index 19f69d5bb7..e00768b308 100644
--- a/tests/bits/sparse_matrix_iterator_08.cc
+++ b/tests/bits/sparse_matrix_iterator_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_09.cc b/tests/bits/sparse_matrix_iterator_09.cc
index d12af689e8..bbc53d909c 100644
--- a/tests/bits/sparse_matrix_iterator_09.cc
+++ b/tests/bits/sparse_matrix_iterator_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_10.cc b/tests/bits/sparse_matrix_iterator_10.cc
index 0edf9a9315..cae36fc39f 100644
--- a/tests/bits/sparse_matrix_iterator_10.cc
+++ b/tests/bits/sparse_matrix_iterator_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_11.cc b/tests/bits/sparse_matrix_iterator_11.cc
index 375d7b8193..9b3efc48df 100644
--- a/tests/bits/sparse_matrix_iterator_11.cc
+++ b/tests/bits/sparse_matrix_iterator_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_12.cc b/tests/bits/sparse_matrix_iterator_12.cc
index ec4390f81e..2bc0c57536 100644
--- a/tests/bits/sparse_matrix_iterator_12.cc
+++ b/tests/bits/sparse_matrix_iterator_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_iterator_13.cc b/tests/bits/sparse_matrix_iterator_13.cc
index 548407527c..c5f7edc6e3 100644
--- a/tests/bits/sparse_matrix_iterator_13.cc
+++ b/tests/bits/sparse_matrix_iterator_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_vector_01.cc b/tests/bits/sparse_matrix_vector_01.cc
index 10112e912a..29579f157f 100644
--- a/tests/bits/sparse_matrix_vector_01.cc
+++ b/tests/bits/sparse_matrix_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_vector_02.cc b/tests/bits/sparse_matrix_vector_02.cc
index fa69002eee..f18f858b52 100644
--- a/tests/bits/sparse_matrix_vector_02.cc
+++ b/tests/bits/sparse_matrix_vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_vector_03.cc b/tests/bits/sparse_matrix_vector_03.cc
index e90a73a503..fe3d6fc3d9 100644
--- a/tests/bits/sparse_matrix_vector_03.cc
+++ b/tests/bits/sparse_matrix_vector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_vector_04.cc b/tests/bits/sparse_matrix_vector_04.cc
index 8d2c663570..f8e76faf63 100644
--- a/tests/bits/sparse_matrix_vector_04.cc
+++ b/tests/bits/sparse_matrix_vector_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_vector_05.cc b/tests/bits/sparse_matrix_vector_05.cc
index 9f6e9d3c46..636bd226f3 100644
--- a/tests/bits/sparse_matrix_vector_05.cc
+++ b/tests/bits/sparse_matrix_vector_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_vector_06.cc b/tests/bits/sparse_matrix_vector_06.cc
index 66c4edf59e..2ff1a31fcd 100644
--- a/tests/bits/sparse_matrix_vector_06.cc
+++ b/tests/bits/sparse_matrix_vector_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/sparse_matrix_vector_07.cc b/tests/bits/sparse_matrix_vector_07.cc
index dd9154af59..e00bd7e2eb 100644
--- a/tests/bits/sparse_matrix_vector_07.cc
+++ b/tests/bits/sparse_matrix_vector_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/static_condensation.cc b/tests/bits/static_condensation.cc
index 0a95b4aa92..69bb1e2815 100644
--- a/tests/bits/static_condensation.cc
+++ b/tests/bits/static_condensation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-11.cc b/tests/bits/step-11.cc
index dc47e5d303..c940d1fee3 100644
--- a/tests/bits/step-11.cc
+++ b/tests/bits/step-11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-12.cc b/tests/bits/step-12.cc
index b451080935..14014fd4e7 100644
--- a/tests/bits/step-12.cc
+++ b/tests/bits/step-12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-13.cc b/tests/bits/step-13.cc
index 083ee883df..3b39e4bf7c 100644
--- a/tests/bits/step-13.cc
+++ b/tests/bits/step-13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-14.cc b/tests/bits/step-14.cc
index db1261da8a..b2125fa5bb 100644
--- a/tests/bits/step-14.cc
+++ b/tests/bits/step-14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-4.cc b/tests/bits/step-4.cc
index 2b4b98820f..f840ba5d2a 100644
--- a/tests/bits/step-4.cc
+++ b/tests/bits/step-4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-4_dg_periodic.cc b/tests/bits/step-4_dg_periodic.cc
index 5a87980e80..a8a58d9766 100644
--- a/tests/bits/step-4_dg_periodic.cc
+++ b/tests/bits/step-4_dg_periodic.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-4_dg_periodic_coupling.cc b/tests/bits/step-4_dg_periodic_coupling.cc
index aac750b65e..8cca1cc788 100644
--- a/tests/bits/step-4_dg_periodic_coupling.cc
+++ b/tests/bits/step-4_dg_periodic_coupling.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-5.cc b/tests/bits/step-5.cc
index b304fec8e3..039ec201b5 100644
--- a/tests/bits/step-5.cc
+++ b/tests/bits/step-5.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-51.cc b/tests/bits/step-51.cc
index 1ef1ffe45f..02a04708a2 100644
--- a/tests/bits/step-51.cc
+++ b/tests/bits/step-51.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-51p.cc b/tests/bits/step-51p.cc
index 4b13bde372..b4c29c3d85 100644
--- a/tests/bits/step-51p.cc
+++ b/tests/bits/step-51p.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-6-racoptimize-2.cc b/tests/bits/step-6-racoptimize-2.cc
index cf8d5785b1..f8d45899f0 100644
--- a/tests/bits/step-6-racoptimize-2.cc
+++ b/tests/bits/step-6-racoptimize-2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-6-racoptimize.cc b/tests/bits/step-6-racoptimize.cc
index 0db8831b9c..dee07087e7 100644
--- a/tests/bits/step-6-racoptimize.cc
+++ b/tests/bits/step-6-racoptimize.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-6.cc b/tests/bits/step-6.cc
index 66ba222c3a..57f8ee3330 100644
--- a/tests/bits/step-6.cc
+++ b/tests/bits/step-6.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-7.cc b/tests/bits/step-7.cc
index 4e4326ca0c..feda44e0c0 100644
--- a/tests/bits/step-7.cc
+++ b/tests/bits/step-7.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/step-8.cc b/tests/bits/step-8.cc
index d24b68d65e..cf0a592760 100644
--- a/tests/bits/step-8.cc
+++ b/tests/bits/step-8.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/subdomain_ids_01.cc b/tests/bits/subdomain_ids_01.cc
index 6b300ae8fb..81042b12e3 100644
--- a/tests/bits/subdomain_ids_01.cc
+++ b/tests/bits/subdomain_ids_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/subdomain_ids_02.cc b/tests/bits/subdomain_ids_02.cc
index 4957b9c394..a51a1d315e 100644
--- a/tests/bits/subdomain_ids_02.cc
+++ b/tests/bits/subdomain_ids_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/subdomain_ids_03.cc b/tests/bits/subdomain_ids_03.cc
index f35e80aae8..ad9ecbdfd9 100644
--- a/tests/bits/subdomain_ids_03.cc
+++ b/tests/bits/subdomain_ids_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/subdomain_ids_04.cc b/tests/bits/subdomain_ids_04.cc
index bd8bcde91a..784279ce8f 100644
--- a/tests/bits/subdomain_ids_04.cc
+++ b/tests/bits/subdomain_ids_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/subdomain_ids_05.cc b/tests/bits/subdomain_ids_05.cc
index d82c457cb1..f8b82a35f5 100644
--- a/tests/bits/subdomain_ids_05.cc
+++ b/tests/bits/subdomain_ids_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/subdomain_ids_06.cc b/tests/bits/subdomain_ids_06.cc
index 2f3ac1dc7b..661b154991 100644
--- a/tests/bits/subdomain_ids_06.cc
+++ b/tests/bits/subdomain_ids_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/subdomain_ids_07.cc b/tests/bits/subdomain_ids_07.cc
index d1ca3161dd..2a0a6e21e0 100644
--- a/tests/bits/subdomain_ids_07.cc
+++ b/tests/bits/subdomain_ids_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/bits/unit_support_points_03.cc b/tests/bits/unit_support_points_03.cc
index c78c6194dd..00f051363e 100644
--- a/tests/bits/unit_support_points_03.cc
+++ b/tests/bits/unit_support_points_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/boost/node_visitor_01.cc b/tests/boost/node_visitor_01.cc
index cfcd7150eb..a21a4eb45b 100644
--- a/tests/boost/node_visitor_01.cc
+++ b/tests/boost/node_visitor_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/boost/node_visitor_02.cc b/tests/boost/node_visitor_02.cc
index 30df85cf37..ee2d98ae6c 100644
--- a/tests/boost/node_visitor_02.cc
+++ b/tests/boost/node_visitor_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/cgal/cgal_remesh_surface.cc b/tests/cgal/cgal_remesh_surface.cc
index f8fd8b5436..ed500882f1 100644
--- a/tests/cgal/cgal_remesh_surface.cc
+++ b/tests/cgal/cgal_remesh_surface.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/cgal/cgal_surface_mesh_02.cc b/tests/cgal/cgal_surface_mesh_02.cc
index 222551ea50..25e429080d 100644
--- a/tests/cgal/cgal_surface_mesh_02.cc
+++ b/tests/cgal/cgal_surface_mesh_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/cgal/cgal_triangulation_06.cc b/tests/cgal/cgal_triangulation_06.cc
index 517d3902dd..bb41c5f6fd 100644
--- a/tests/cgal/cgal_triangulation_06.cc
+++ b/tests/cgal/cgal_triangulation_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/bem.cc b/tests/codim_one/bem.cc
index c1c769a868..763c7a300e 100644
--- a/tests/codim_one/bem.cc
+++ b/tests/codim_one/bem.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/data_out.cc b/tests/codim_one/data_out.cc
index 4e48cfacd5..c9a2132f33 100644
--- a/tests/codim_one/data_out.cc
+++ b/tests/codim_one/data_out.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/data_out_03.cc b/tests/codim_one/data_out_03.cc
index 7968154783..5b4f1f33ce 100644
--- a/tests/codim_one/data_out_03.cc
+++ b/tests/codim_one/data_out_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2022 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/error_estimator_01.cc b/tests/codim_one/error_estimator_01.cc
index 611a7f3cff..2da2248047 100644
--- a/tests/codim_one/error_estimator_01.cc
+++ b/tests/codim_one/error_estimator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/error_estimator_02.cc b/tests/codim_one/error_estimator_02.cc
index 704b36e5e2..6f631fa9a0 100644
--- a/tests/codim_one/error_estimator_02.cc
+++ b/tests/codim_one/error_estimator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/extract_boundary_mesh_08.cc b/tests/codim_one/extract_boundary_mesh_08.cc
index 6039a5e653..eaa2f0fc4f 100644
--- a/tests/codim_one/extract_boundary_mesh_08.cc
+++ b/tests/codim_one/extract_boundary_mesh_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/extract_boundary_mesh_09.cc b/tests/codim_one/extract_boundary_mesh_09.cc
index 7e64570037..6843b09906 100644
--- a/tests/codim_one/extract_boundary_mesh_09.cc
+++ b/tests/codim_one/extract_boundary_mesh_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/extract_boundary_mesh_11.cc b/tests/codim_one/extract_boundary_mesh_11.cc
index bd4df02b41..509f5cb25a 100644
--- a/tests/codim_one/extract_boundary_mesh_11.cc
+++ b/tests/codim_one/extract_boundary_mesh_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/extract_boundary_mesh_12.cc b/tests/codim_one/extract_boundary_mesh_12.cc
index cde714fa3f..3f5fb8e779 100644
--- a/tests/codim_one/extract_boundary_mesh_12.cc
+++ b/tests/codim_one/extract_boundary_mesh_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/extract_boundary_mesh_13.cc b/tests/codim_one/extract_boundary_mesh_13.cc
index c3a6ca4659..3455edcb49 100644
--- a/tests/codim_one/extract_boundary_mesh_13.cc
+++ b/tests/codim_one/extract_boundary_mesh_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2020 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/gradients.cc b/tests/codim_one/gradients.cc
index f85f4d7130..b76a941881 100644
--- a/tests/codim_one/gradients.cc
+++ b/tests/codim_one/gradients.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/gradients_1.cc b/tests/codim_one/gradients_1.cc
index fe7d6c9047..aff0a5109d 100644
--- a/tests/codim_one/gradients_1.cc
+++ b/tests/codim_one/gradients_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/grid_in_out.cc b/tests/codim_one/grid_in_out.cc
index f17ace3fa1..327ca2fab4 100644
--- a/tests/codim_one/grid_in_out.cc
+++ b/tests/codim_one/grid_in_out.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/grid_in_out_02.cc b/tests/codim_one/grid_in_out_02.cc
index 547544cafd..90bc587b6b 100644
--- a/tests/codim_one/grid_in_out_02.cc
+++ b/tests/codim_one/grid_in_out_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/grid_in_out_03.cc b/tests/codim_one/grid_in_out_03.cc
index 70fe9105c8..33644968bd 100644
--- a/tests/codim_one/grid_in_out_03.cc
+++ b/tests/codim_one/grid_in_out_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/grid_refinement.cc b/tests/codim_one/grid_refinement.cc
index 0cfb1c4505..d10a4ae2c3 100644
--- a/tests/codim_one/grid_refinement.cc
+++ b/tests/codim_one/grid_refinement.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/interpolate_boundary_values_01.cc b/tests/codim_one/interpolate_boundary_values_01.cc
index 19161e3d8a..4b8d2a0bd1 100644
--- a/tests/codim_one/interpolate_boundary_values_01.cc
+++ b/tests/codim_one/interpolate_boundary_values_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/interpolate_boundary_values_01_vector_valued.cc b/tests/codim_one/interpolate_boundary_values_01_vector_valued.cc
index 00f7d7ef3f..c8c311eb5c 100644
--- a/tests/codim_one/interpolate_boundary_values_01_vector_valued.cc
+++ b/tests/codim_one/interpolate_boundary_values_01_vector_valued.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/interpolation.cc b/tests/codim_one/interpolation.cc
index 2acda2b183..5d69751c09 100644
--- a/tests/codim_one/interpolation.cc
+++ b/tests/codim_one/interpolation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/interpolation_2.cc b/tests/codim_one/interpolation_2.cc
index 38d43e2835..7a0c25f7a6 100644
--- a/tests/codim_one/interpolation_2.cc
+++ b/tests/codim_one/interpolation_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/interpolation_3.cc b/tests/codim_one/interpolation_3.cc
index 8bd12ab127..c2ddaac69f 100644
--- a/tests/codim_one/interpolation_3.cc
+++ b/tests/codim_one/interpolation_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/mapping_fe_field_01.cc b/tests/codim_one/mapping_fe_field_01.cc
index fdd4fc2b5a..44926f22a3 100644
--- a/tests/codim_one/mapping_fe_field_01.cc
+++ b/tests/codim_one/mapping_fe_field_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/mapping_q1.cc b/tests/codim_one/mapping_q1.cc
index a0c05c5bc6..185a60126a 100644
--- a/tests/codim_one/mapping_q1.cc
+++ b/tests/codim_one/mapping_q1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/mapping_q1_eulerian.cc b/tests/codim_one/mapping_q1_eulerian.cc
index b8677675cd..0105698bbc 100644
--- a/tests/codim_one/mapping_q1_eulerian.cc
+++ b/tests/codim_one/mapping_q1_eulerian.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/mapping_q_eulerian.cc b/tests/codim_one/mapping_q_eulerian.cc
index 7b3f1f545f..fe18242974 100644
--- a/tests/codim_one/mapping_q_eulerian.cc
+++ b/tests/codim_one/mapping_q_eulerian.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/mesh_bug.cc b/tests/codim_one/mesh_bug.cc
index c095948895..9a2689494c 100644
--- a/tests/codim_one/mesh_bug.cc
+++ b/tests/codim_one/mesh_bug.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/projection.cc b/tests/codim_one/projection.cc
index bcebbb3581..3efd615e77 100644
--- a/tests/codim_one/projection.cc
+++ b/tests/codim_one/projection.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/projection_dgp.cc b/tests/codim_one/projection_dgp.cc
index 1779e43737..3e0b8a4036 100644
--- a/tests/codim_one/projection_dgp.cc
+++ b/tests/codim_one/projection_dgp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/renumber_component_wise_01.cc b/tests/codim_one/renumber_component_wise_01.cc
index 93aa58244b..58309913aa 100644
--- a/tests/codim_one/renumber_component_wise_01.cc
+++ b/tests/codim_one/renumber_component_wise_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/codim_one/surface.cc b/tests/codim_one/surface.cc
index 06403f32b6..456e92120e 100644
--- a/tests/codim_one/surface.cc
+++ b/tests/codim_one/surface.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_01.cc b/tests/data_out/data_out_01.cc
index 0b834f5adf..ce17308754 100644
--- a/tests/data_out/data_out_01.cc
+++ b/tests/data_out/data_out_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_02.cc b/tests/data_out/data_out_02.cc
index ef1196809d..cb1930b389 100644
--- a/tests/data_out/data_out_02.cc
+++ b/tests/data_out/data_out_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_03.cc b/tests/data_out/data_out_03.cc
index ea7901dde1..d96861189e 100644
--- a/tests/data_out/data_out_03.cc
+++ b/tests/data_out/data_out_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_04.cc b/tests/data_out/data_out_04.cc
index 4b3a92b79e..8059395642 100644
--- a/tests/data_out/data_out_04.cc
+++ b/tests/data_out/data_out_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_05.cc b/tests/data_out/data_out_05.cc
index b622f5beb4..f5e651048a 100644
--- a/tests/data_out/data_out_05.cc
+++ b/tests/data_out/data_out_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_06.cc b/tests/data_out/data_out_06.cc
index bda6f3e03e..ca7d86504e 100644
--- a/tests/data_out/data_out_06.cc
+++ b/tests/data_out/data_out_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_07.cc b/tests/data_out/data_out_07.cc
index 023058c8e9..58ef95d54a 100644
--- a/tests/data_out/data_out_07.cc
+++ b/tests/data_out/data_out_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_08_set_cell_selection_01.cc b/tests/data_out/data_out_08_set_cell_selection_01.cc
index 2343defe32..ca9f72904a 100644
--- a/tests/data_out/data_out_08_set_cell_selection_01.cc
+++ b/tests/data_out/data_out_08_set_cell_selection_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_base.cc b/tests/data_out/data_out_base.cc
index ae7524f16e..5a8d73fa27 100644
--- a/tests/data_out/data_out_base.cc
+++ b/tests/data_out/data_out_base.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_base_dx.cc b/tests/data_out/data_out_base_dx.cc
index 6083ba56c8..6cf054e791 100644
--- a/tests/data_out/data_out_base_dx.cc
+++ b/tests/data_out/data_out_base_dx.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_base_eps.cc b/tests/data_out/data_out_base_eps.cc
index c65f36a410..4f8fd4ec7c 100644
--- a/tests/data_out/data_out_base_eps.cc
+++ b/tests/data_out/data_out_base_eps.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_base_gnuplot.cc b/tests/data_out/data_out_base_gnuplot.cc
index b4e024ed6e..244c3b4a47 100644
--- a/tests/data_out/data_out_base_gnuplot.cc
+++ b/tests/data_out/data_out_base_gnuplot.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_base_gnuplot_02.cc b/tests/data_out/data_out_base_gnuplot_02.cc
index f9808147e6..947b5416da 100644
--- a/tests/data_out/data_out_base_gnuplot_02.cc
+++ b/tests/data_out/data_out_base_gnuplot_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_base_gnuplot_labels_02.cc b/tests/data_out/data_out_base_gnuplot_labels_02.cc
index 039d6c778d..8a1031107c 100644
--- a/tests/data_out/data_out_base_gnuplot_labels_02.cc
+++ b/tests/data_out/data_out_base_gnuplot_labels_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_base_povray.cc b/tests/data_out/data_out_base_povray.cc
index 7ebb8d4c7e..375ef1d12d 100644
--- a/tests/data_out/data_out_base_povray.cc
+++ b/tests/data_out/data_out_base_povray.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_common.h b/tests/data_out/data_out_common.h
index 85462cba27..883828bb30 100644
--- a/tests/data_out/data_out_common.h
+++ b/tests/data_out/data_out_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_01.cc b/tests/data_out/data_out_complex_01.cc
index 81e3f01755..60d56ba167 100644
--- a/tests/data_out/data_out_complex_01.cc
+++ b/tests/data_out/data_out_complex_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_01_mixed.cc b/tests/data_out/data_out_complex_01_mixed.cc
index edc09044ee..b5757fefe5 100644
--- a/tests/data_out/data_out_complex_01_mixed.cc
+++ b/tests/data_out/data_out_complex_01_mixed.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_02.cc b/tests/data_out/data_out_complex_02.cc
index 35837d3d35..33442e70fc 100644
--- a/tests/data_out/data_out_complex_02.cc
+++ b/tests/data_out/data_out_complex_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_02_mixed.cc b/tests/data_out/data_out_complex_02_mixed.cc
index 8519b37393..418fc247df 100644
--- a/tests/data_out/data_out_complex_02_mixed.cc
+++ b/tests/data_out/data_out_complex_02_mixed.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_03.cc b/tests/data_out/data_out_complex_03.cc
index e4015eeef9..69468d3443 100644
--- a/tests/data_out/data_out_complex_03.cc
+++ b/tests/data_out/data_out_complex_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_03_mixed.cc b/tests/data_out/data_out_complex_03_mixed.cc
index 6df1850e8a..a359882d89 100644
--- a/tests/data_out/data_out_complex_03_mixed.cc
+++ b/tests/data_out/data_out_complex_03_mixed.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_04.cc b/tests/data_out/data_out_complex_04.cc
index 6e8e391005..4d859246be 100644
--- a/tests/data_out/data_out_complex_04.cc
+++ b/tests/data_out/data_out_complex_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_04_mixed.cc b/tests/data_out/data_out_complex_04_mixed.cc
index 0693185c5e..9893f2fc11 100644
--- a/tests/data_out/data_out_complex_04_mixed.cc
+++ b/tests/data_out/data_out_complex_04_mixed.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_05.cc b/tests/data_out/data_out_complex_05.cc
index 52bff22651..97e7dc585a 100644
--- a/tests/data_out/data_out_complex_05.cc
+++ b/tests/data_out/data_out_complex_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_05_tensor.cc b/tests/data_out/data_out_complex_05_tensor.cc
index ec7bfdbcdc..f6c56e09b1 100644
--- a/tests/data_out/data_out_complex_05_tensor.cc
+++ b/tests/data_out/data_out_complex_05_tensor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_06.cc b/tests/data_out/data_out_complex_06.cc
index 7d369740e5..40f98c3959 100644
--- a/tests/data_out/data_out_complex_06.cc
+++ b/tests/data_out/data_out_complex_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_postprocessor_01.cc b/tests/data_out/data_out_complex_postprocessor_01.cc
index a7a6924619..665cb598ae 100644
--- a/tests/data_out/data_out_complex_postprocessor_01.cc
+++ b/tests/data_out/data_out_complex_postprocessor_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_postprocessor_02.cc b/tests/data_out/data_out_complex_postprocessor_02.cc
index b86c4690a9..4443160d65 100644
--- a/tests/data_out/data_out_complex_postprocessor_02.cc
+++ b/tests/data_out/data_out_complex_postprocessor_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_complex_postprocessor_03.cc b/tests/data_out/data_out_complex_postprocessor_03.cc
index 068893dc67..56c1e152e7 100644
--- a/tests/data_out/data_out_complex_postprocessor_03.cc
+++ b/tests/data_out/data_out_complex_postprocessor_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_curved_cells.cc b/tests/data_out/data_out_curved_cells.cc
index 2b43d1dac0..2c53013542 100644
--- a/tests/data_out/data_out_curved_cells.cc
+++ b/tests/data_out/data_out_curved_cells.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_faces_01.cc b/tests/data_out/data_out_faces_01.cc
index 8a0eec3d49..f23503a99c 100644
--- a/tests/data_out/data_out_faces_01.cc
+++ b/tests/data_out/data_out_faces_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_faces_02.cc b/tests/data_out/data_out_faces_02.cc
index bc22572054..8bfb81a9b1 100644
--- a/tests/data_out/data_out_faces_02.cc
+++ b/tests/data_out/data_out_faces_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_faces_03.cc b/tests/data_out/data_out_faces_03.cc
index 5a803ff263..e4b2d7db8e 100644
--- a/tests/data_out/data_out_faces_03.cc
+++ b/tests/data_out/data_out_faces_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_faces_04.cc b/tests/data_out/data_out_faces_04.cc
index dce8683c6f..c0e43f228a 100644
--- a/tests/data_out/data_out_faces_04.cc
+++ b/tests/data_out/data_out_faces_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_faces_05.cc b/tests/data_out/data_out_faces_05.cc
index d5ab263cfc..8607dc7f65 100644
--- a/tests/data_out/data_out_faces_05.cc
+++ b/tests/data_out/data_out_faces_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_hdf5_01.cc b/tests/data_out/data_out_hdf5_01.cc
index 3d65b8c3cc..f57823f8c4 100644
--- a/tests/data_out/data_out_hdf5_01.cc
+++ b/tests/data_out/data_out_hdf5_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_hdf5_02.cc b/tests/data_out/data_out_hdf5_02.cc
index 96843cfb47..6e04f68658 100644
--- a/tests/data_out/data_out_hdf5_02.cc
+++ b/tests/data_out/data_out_hdf5_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_multi_dh_01.cc b/tests/data_out/data_out_multi_dh_01.cc
index da4e3636e3..01f019dd00 100644
--- a/tests/data_out/data_out_multi_dh_01.cc
+++ b/tests/data_out/data_out_multi_dh_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_multi_dh_02.cc b/tests/data_out/data_out_multi_dh_02.cc
index 81e4defb43..20616477e2 100644
--- a/tests/data_out/data_out_multi_dh_02.cc
+++ b/tests/data_out/data_out_multi_dh_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_multi_dh_03.cc b/tests/data_out/data_out_multi_dh_03.cc
index 926aa60551..41e4029ad3 100644
--- a/tests/data_out/data_out_multi_dh_03.cc
+++ b/tests/data_out/data_out_multi_dh_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_multi_dh_04.cc b/tests/data_out/data_out_multi_dh_04.cc
index 3565fbb5d8..25ff838a0f 100644
--- a/tests/data_out/data_out_multi_dh_04.cc
+++ b/tests/data_out/data_out_multi_dh_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_multi_dh_05.cc b/tests/data_out/data_out_multi_dh_05.cc
index 89b2c0b9d4..ccba1f630d 100644
--- a/tests/data_out/data_out_multi_dh_05.cc
+++ b/tests/data_out/data_out_multi_dh_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_postprocessor_01-new.cc b/tests/data_out/data_out_postprocessor_01-new.cc
index 37945867f2..9681f7acc9 100644
--- a/tests/data_out/data_out_postprocessor_01-new.cc
+++ b/tests/data_out/data_out_postprocessor_01-new.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_postprocessor_scalar_01-new.cc b/tests/data_out/data_out_postprocessor_scalar_01-new.cc
index 2378fc3940..bae208175c 100644
--- a/tests/data_out/data_out_postprocessor_scalar_01-new.cc
+++ b/tests/data_out/data_out_postprocessor_scalar_01-new.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_postprocessor_tensor_01.cc b/tests/data_out/data_out_postprocessor_tensor_01.cc
index f2741669c8..2f02cc8712 100644
--- a/tests/data_out/data_out_postprocessor_tensor_01.cc
+++ b/tests/data_out/data_out_postprocessor_tensor_01.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2000 - 2020 by the deal.II authors
+ * Copyright (C) 2000 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/data_out/data_out_postprocessor_tensor_02.cc b/tests/data_out/data_out_postprocessor_tensor_02.cc
index 8e9034bb61..7e5fc4b669 100644
--- a/tests/data_out/data_out_postprocessor_tensor_02.cc
+++ b/tests/data_out/data_out_postprocessor_tensor_02.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2000 - 2023 by the deal.II authors
+ * Copyright (C) 2000 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/data_out/data_out_postprocessor_vector_01-new.cc b/tests/data_out/data_out_postprocessor_vector_01-new.cc
index 0248af5b94..f9bdd2ca66 100644
--- a/tests/data_out/data_out_postprocessor_vector_01-new.cc
+++ b/tests/data_out/data_out_postprocessor_vector_01-new.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_postprocessor_vector_complex_01.cc b/tests/data_out/data_out_postprocessor_vector_complex_01.cc
index 3f5d450dd1..079e22b92c 100644
--- a/tests/data_out/data_out_postprocessor_vector_complex_01.cc
+++ b/tests/data_out/data_out_postprocessor_vector_complex_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2019 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_rotation_01.cc b/tests/data_out/data_out_rotation_01.cc
index 7ad6922d32..3f318113a0 100644
--- a/tests/data_out/data_out_rotation_01.cc
+++ b/tests/data_out/data_out_rotation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_rotation_02.cc b/tests/data_out/data_out_rotation_02.cc
index 48e24c034b..c4f6685a7e 100644
--- a/tests/data_out/data_out_rotation_02.cc
+++ b/tests/data_out/data_out_rotation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_rotation_03.cc b/tests/data_out/data_out_rotation_03.cc
index 9a2042248e..1e4b7e21a9 100644
--- a/tests/data_out/data_out_rotation_03.cc
+++ b/tests/data_out/data_out_rotation_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_rotation_04.cc b/tests/data_out/data_out_rotation_04.cc
index caa7bf081d..c979442725 100644
--- a/tests/data_out/data_out_rotation_04.cc
+++ b/tests/data_out/data_out_rotation_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_rotation_05.cc b/tests/data_out/data_out_rotation_05.cc
index 728a609b98..26099dfa10 100644
--- a/tests/data_out/data_out_rotation_05.cc
+++ b/tests/data_out/data_out_rotation_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_stack_01.cc b/tests/data_out/data_out_stack_01.cc
index a011f1c6b2..dfc55a3236 100644
--- a/tests/data_out/data_out_stack_01.cc
+++ b/tests/data_out/data_out_stack_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/data_out_stack_02.cc b/tests/data_out/data_out_stack_02.cc
index 9a62c8e418..5be0ceb6e2 100644
--- a/tests/data_out/data_out_stack_02.cc
+++ b/tests/data_out/data_out_stack_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/patches.h b/tests/data_out/patches.h
index 4729f994d2..d624eb6da1 100644
--- a/tests/data_out/patches.h
+++ b/tests/data_out/patches.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2021 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/write_subdivided_simplex_vtu.cc b/tests/data_out/write_subdivided_simplex_vtu.cc
index 8cd640233c..5f75b4ea1b 100644
--- a/tests/data_out/write_subdivided_simplex_vtu.cc
+++ b/tests/data_out/write_subdivided_simplex_vtu.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/data_out/write_vtu_with_pvtu_record_no_folder_01.cc b/tests/data_out/write_vtu_with_pvtu_record_no_folder_01.cc
index 201718fa61..b3a7782af4 100644
--- a/tests/data_out/write_vtu_with_pvtu_record_no_folder_01.cc
+++ b/tests/data_out/write_vtu_with_pvtu_record_no_folder_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/distributed_grids/2d_refinement_10.cc b/tests/distributed_grids/2d_refinement_10.cc
index 96e697e6fc..62d2c51a7c 100644
--- a/tests/distributed_grids/2d_refinement_10.cc
+++ b/tests/distributed_grids/2d_refinement_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/distributed_grids/3d_coarse_grid_05.cc b/tests/distributed_grids/3d_coarse_grid_05.cc
index 12176612a3..29ae10b877 100644
--- a/tests/distributed_grids/3d_coarse_grid_05.cc
+++ b/tests/distributed_grids/3d_coarse_grid_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/distributed_grids/3d_refinement_12.cc b/tests/distributed_grids/3d_refinement_12.cc
index b8e7af6a21..bb9196ceb3 100644
--- a/tests/distributed_grids/3d_refinement_12.cc
+++ b/tests/distributed_grids/3d_refinement_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/distributed_grids/checkpointing_02.cc b/tests/distributed_grids/checkpointing_02.cc
index 68a5d0cd93..b4830950c6 100644
--- a/tests/distributed_grids/checkpointing_02.cc
+++ b/tests/distributed_grids/checkpointing_02.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2022 by the deal.II authors
+ * Copyright (C) 2021 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/distributed_grids/checkpointing_03.cc b/tests/distributed_grids/checkpointing_03.cc
index f0971d879d..113668b030 100644
--- a/tests/distributed_grids/checkpointing_03.cc
+++ b/tests/distributed_grids/checkpointing_03.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2022 by the deal.II authors
+ * Copyright (C) 2021 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/distributed_grids/coarse_grid_common.h b/tests/distributed_grids/coarse_grid_common.h
index 12f9a28b65..459b76a767 100644
--- a/tests/distributed_grids/coarse_grid_common.h
+++ b/tests/distributed_grids/coarse_grid_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/distributed_grids/get_boundary_ids_01.cc b/tests/distributed_grids/get_boundary_ids_01.cc
index f1b5712964..0b5ca5d976 100644
--- a/tests/distributed_grids/get_boundary_ids_01.cc
+++ b/tests/distributed_grids/get_boundary_ids_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/distributed_grids/large_vtu_01.cc b/tests/distributed_grids/large_vtu_01.cc
index acf41e053f..5ea2998987 100644
--- a/tests/distributed_grids/large_vtu_01.cc
+++ b/tests/distributed_grids/large_vtu_01.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2022 by the deal.II authors
+ * Copyright (C) 2021 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/distributed_grids/solution_transfer_05.cc b/tests/distributed_grids/solution_transfer_05.cc
index 9d00a07dfc..3be83ff0ab 100644
--- a/tests/distributed_grids/solution_transfer_05.cc
+++ b/tests/distributed_grids/solution_transfer_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/block_list.h b/tests/dofs/block_list.h
index d0008ce200..55eb0ac38e 100644
--- a/tests/dofs/block_list.h
+++ b/tests/dofs/block_list.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2020 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/block_list_parallel_01.cc b/tests/dofs/block_list_parallel_01.cc
index 386d3aff56..021074dedf 100644
--- a/tests/dofs/block_list_parallel_01.cc
+++ b/tests/dofs/block_list_parallel_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/block_relaxation_01.cc b/tests/dofs/block_relaxation_01.cc
index fd76dfd2d1..ef067ff254 100644
--- a/tests/dofs/block_relaxation_01.cc
+++ b/tests/dofs/block_relaxation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_accessor_03.cc b/tests/dofs/dof_accessor_03.cc
index 72658a553e..339f839a02 100644
--- a/tests/dofs/dof_accessor_03.cc
+++ b/tests/dofs/dof_accessor_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_accessor_04.cc b/tests/dofs/dof_accessor_04.cc
index 69b1075e29..75e3739113 100644
--- a/tests/dofs/dof_accessor_04.cc
+++ b/tests/dofs/dof_accessor_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_01.cc b/tests/dofs/dof_constraints_01.cc
index 39498d5b3a..271e1e14a8 100644
--- a/tests/dofs/dof_constraints_01.cc
+++ b/tests/dofs/dof_constraints_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_02.cc b/tests/dofs/dof_constraints_02.cc
index 5e0a90c4a4..54d04f8b07 100644
--- a/tests/dofs/dof_constraints_02.cc
+++ b/tests/dofs/dof_constraints_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_03.cc b/tests/dofs/dof_constraints_03.cc
index bcce4c2a30..2243fc8bfc 100644
--- a/tests/dofs/dof_constraints_03.cc
+++ b/tests/dofs/dof_constraints_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_04.cc b/tests/dofs/dof_constraints_04.cc
index 56dbb787f9..736912f92d 100644
--- a/tests/dofs/dof_constraints_04.cc
+++ b/tests/dofs/dof_constraints_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_05.cc b/tests/dofs/dof_constraints_05.cc
index a9d665e610..340d40fb5c 100644
--- a/tests/dofs/dof_constraints_05.cc
+++ b/tests/dofs/dof_constraints_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_06.cc b/tests/dofs/dof_constraints_06.cc
index 9536c3a8ef..3a952b586b 100644
--- a/tests/dofs/dof_constraints_06.cc
+++ b/tests/dofs/dof_constraints_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_07.cc b/tests/dofs/dof_constraints_07.cc
index 00cdf83c0b..5191484da2 100644
--- a/tests/dofs/dof_constraints_07.cc
+++ b/tests/dofs/dof_constraints_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_08.cc b/tests/dofs/dof_constraints_08.cc
index 09be6710d8..6a5508cfc2 100644
--- a/tests/dofs/dof_constraints_08.cc
+++ b/tests/dofs/dof_constraints_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_09.cc b/tests/dofs/dof_constraints_09.cc
index c00761b004..1dde2b7d11 100644
--- a/tests/dofs/dof_constraints_09.cc
+++ b/tests/dofs/dof_constraints_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_10.cc b/tests/dofs/dof_constraints_10.cc
index 9fa3d9128d..270cdd846e 100644
--- a/tests/dofs/dof_constraints_10.cc
+++ b/tests/dofs/dof_constraints_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_11.cc b/tests/dofs/dof_constraints_11.cc
index 9aa6186dbb..d2716975d4 100644
--- a/tests/dofs/dof_constraints_11.cc
+++ b/tests/dofs/dof_constraints_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_constraints_11_x.cc b/tests/dofs/dof_constraints_11_x.cc
index 0133549925..a373cbb536 100644
--- a/tests/dofs/dof_constraints_11_x.cc
+++ b/tests/dofs/dof_constraints_11_x.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering.cc b/tests/dofs/dof_renumbering.cc
index 1548af9936..9bac266bbd 100644
--- a/tests/dofs/dof_renumbering.cc
+++ b/tests/dofs/dof_renumbering.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_02.cc b/tests/dofs/dof_renumbering_02.cc
index f884fbeae9..82c9cca86c 100644
--- a/tests/dofs/dof_renumbering_02.cc
+++ b/tests/dofs/dof_renumbering_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_03.cc b/tests/dofs/dof_renumbering_03.cc
index 5faedf07ce..0c1a6afc16 100644
--- a/tests/dofs/dof_renumbering_03.cc
+++ b/tests/dofs/dof_renumbering_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_04.cc b/tests/dofs/dof_renumbering_04.cc
index cef59224ba..43d69176df 100644
--- a/tests/dofs/dof_renumbering_04.cc
+++ b/tests/dofs/dof_renumbering_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_05.cc b/tests/dofs/dof_renumbering_05.cc
index 0e01d639b8..c71dc6bfbc 100644
--- a/tests/dofs/dof_renumbering_05.cc
+++ b/tests/dofs/dof_renumbering_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_06.cc b/tests/dofs/dof_renumbering_06.cc
index a1e9784473..dd5051080a 100644
--- a/tests/dofs/dof_renumbering_06.cc
+++ b/tests/dofs/dof_renumbering_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_07.cc b/tests/dofs/dof_renumbering_07.cc
index d52f2dec86..e90fbec582 100644
--- a/tests/dofs/dof_renumbering_07.cc
+++ b/tests/dofs/dof_renumbering_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_08.cc b/tests/dofs/dof_renumbering_08.cc
index 16c031fe2e..70c8c51116 100644
--- a/tests/dofs/dof_renumbering_08.cc
+++ b/tests/dofs/dof_renumbering_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_10.cc b/tests/dofs/dof_renumbering_10.cc
index 48a10900e3..a2afba1b84 100644
--- a/tests/dofs/dof_renumbering_10.cc
+++ b/tests/dofs/dof_renumbering_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_zorder_01.cc b/tests/dofs/dof_renumbering_zorder_01.cc
index 0702905526..a30f6c083e 100644
--- a/tests/dofs/dof_renumbering_zorder_01.cc
+++ b/tests/dofs/dof_renumbering_zorder_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_renumbering_zorder_02.cc b/tests/dofs/dof_renumbering_zorder_02.cc
index b013c26be0..e265ff5ae7 100644
--- a/tests/dofs/dof_renumbering_zorder_02.cc
+++ b/tests/dofs/dof_renumbering_zorder_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_test.cc b/tests/dofs/dof_test.cc
index 7b7e1d9d0d..4a2e8e3be8 100644
--- a/tests/dofs/dof_test.cc
+++ b/tests/dofs/dof_test.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2023 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_04a.cc b/tests/dofs/dof_tools_04a.cc
index f8b8979c52..82734698df 100644
--- a/tests/dofs/dof_tools_04a.cc
+++ b/tests/dofs/dof_tools_04a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_05.cc b/tests/dofs/dof_tools_05.cc
index da38e6da6e..7870b61cff 100644
--- a/tests/dofs/dof_tools_05.cc
+++ b/tests/dofs/dof_tools_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_18a_1d.cc b/tests/dofs/dof_tools_18a_1d.cc
index 25874b82be..1294bbf548 100644
--- a/tests/dofs/dof_tools_18a_1d.cc
+++ b/tests/dofs/dof_tools_18a_1d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_20.cc b/tests/dofs/dof_tools_20.cc
index d596fae106..ec878be380 100644
--- a/tests/dofs/dof_tools_20.cc
+++ b/tests/dofs/dof_tools_20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_21_b.cc b/tests/dofs/dof_tools_21_b.cc
index 74ad523456..2aaef662fa 100644
--- a/tests/dofs/dof_tools_21_b.cc
+++ b/tests/dofs/dof_tools_21_b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_21_b_x.cc b/tests/dofs/dof_tools_21_b_x.cc
index 0bfc6b093f..80c39a217f 100644
--- a/tests/dofs/dof_tools_21_b_x.cc
+++ b/tests/dofs/dof_tools_21_b_x.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_21_b_x_q3.cc b/tests/dofs/dof_tools_21_b_x_q3.cc
index beceb9dc74..0ced2d84e1 100644
--- a/tests/dofs/dof_tools_21_b_x_q3.cc
+++ b/tests/dofs/dof_tools_21_b_x_q3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_21_b_y.cc b/tests/dofs/dof_tools_21_b_y.cc
index b20701ae5e..77459bf20f 100644
--- a/tests/dofs/dof_tools_21_b_y.cc
+++ b/tests/dofs/dof_tools_21_b_y.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_21_c.cc b/tests/dofs/dof_tools_21_c.cc
index 325d9ccd45..dfb7097183 100644
--- a/tests/dofs/dof_tools_21_c.cc
+++ b/tests/dofs/dof_tools_21_c.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_22a.cc b/tests/dofs/dof_tools_22a.cc
index fa6146bae1..b9d6377ac5 100644
--- a/tests/dofs/dof_tools_22a.cc
+++ b/tests/dofs/dof_tools_22a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_common_parallel.h b/tests/dofs/dof_tools_common_parallel.h
index 1f894f87fc..abce23ed23 100644
--- a/tests/dofs/dof_tools_common_parallel.h
+++ b/tests/dofs/dof_tools_common_parallel.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_01.cc b/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_01.cc
index 3f59e0dedc..6b0064e921 100644
--- a/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_01.cc
+++ b/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_02.cc b/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_02.cc
index 7f21a43869..d1755da871 100644
--- a/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_02.cc
+++ b/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_03.cc b/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_03.cc
index da51e07a4b..cb39eb4a35 100644
--- a/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_03.cc
+++ b/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_04.cc b/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_04.cc
index fff3153dee..e90c66540a 100644
--- a/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_04.cc
+++ b/tests/dofs/dof_tools_extract_dofs_with_support_contained_within_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/extract_dofs_by_component_04.cc b/tests/dofs/extract_dofs_by_component_04.cc
index 7f72fad184..28f355f3b6 100644
--- a/tests/dofs/extract_dofs_by_component_04.cc
+++ b/tests/dofs/extract_dofs_by_component_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/interpolate_boundary_values_01.cc b/tests/dofs/interpolate_boundary_values_01.cc
index 5f1df80f1f..ce6276b208 100644
--- a/tests/dofs/interpolate_boundary_values_01.cc
+++ b/tests/dofs/interpolate_boundary_values_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/locally_relevant_dofs_per_subdomain_01.cc b/tests/dofs/locally_relevant_dofs_per_subdomain_01.cc
index 625c92b7db..cf51d8f085 100644
--- a/tests/dofs/locally_relevant_dofs_per_subdomain_01.cc
+++ b/tests/dofs/locally_relevant_dofs_per_subdomain_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/locally_relevant_dofs_per_subdomain_01_hp.cc b/tests/dofs/locally_relevant_dofs_per_subdomain_01_hp.cc
index 864187a594..b6653b50e5 100644
--- a/tests/dofs/locally_relevant_dofs_per_subdomain_01_hp.cc
+++ b/tests/dofs/locally_relevant_dofs_per_subdomain_01_hp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/nodal_renumbering_01.cc b/tests/dofs/nodal_renumbering_01.cc
index 5e1a1a31e2..33dfe1abad 100644
--- a/tests/dofs/nodal_renumbering_01.cc
+++ b/tests/dofs/nodal_renumbering_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/range_based_for_step-6.cc b/tests/dofs/range_based_for_step-6.cc
index 7373bac948..fb09df35bd 100644
--- a/tests/dofs/range_based_for_step-6.cc
+++ b/tests/dofs/range_based_for_step-6.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/sparsity_pattern_06.cc b/tests/dofs/sparsity_pattern_06.cc
index e8a1bc3498..2a4fb2602f 100644
--- a/tests/dofs/sparsity_pattern_06.cc
+++ b/tests/dofs/sparsity_pattern_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/dofs/sparsity_pattern_07.cc b/tests/dofs/sparsity_pattern_07.cc
index d501fe5ca9..e6a37d9b42 100644
--- a/tests/dofs/sparsity_pattern_07.cc
+++ b/tests/dofs/sparsity_pattern_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/epetraext/trilinos_sparse_matrix_mmult_01.cc b/tests/epetraext/trilinos_sparse_matrix_mmult_01.cc
index 3a9d8d78db..c62a21ed62 100644
--- a/tests/epetraext/trilinos_sparse_matrix_mmult_01.cc
+++ b/tests/epetraext/trilinos_sparse_matrix_mmult_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/2d_grid_projection_hermite.cc b/tests/fe/2d_grid_projection_hermite.cc
index 741036a379..1491e924d0 100644
--- a/tests/fe/2d_grid_projection_hermite.cc
+++ b/tests/fe/2d_grid_projection_hermite.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 - 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/abf_01.cc b/tests/fe/abf_01.cc
index b849ca6c88..5792ba85d1 100644
--- a/tests/fe/abf_01.cc
+++ b/tests/fe/abf_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/abf_02.cc b/tests/fe/abf_02.cc
index 5e0769f054..4f896eac0e 100644
--- a/tests/fe/abf_02.cc
+++ b/tests/fe/abf_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/bdm_2.cc b/tests/fe/bdm_2.cc
index 5ead7e9768..899e71c7a7 100644
--- a/tests/fe/bdm_2.cc
+++ b/tests/fe/bdm_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/br_approximation_01.cc b/tests/fe/br_approximation_01.cc
index ff4c457382..6169f73676 100644
--- a/tests/fe/br_approximation_01.cc
+++ b/tests/fe/br_approximation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2023 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/cell_similarity_08.cc b/tests/fe/cell_similarity_08.cc
index f0e17bfc3d..17bdbbe893 100644
--- a/tests/fe/cell_similarity_08.cc
+++ b/tests/fe/cell_similarity_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/component_mask_12.cc b/tests/fe/component_mask_12.cc
index 3ed60d9682..7aa69ac7bc 100644
--- a/tests/fe/component_mask_12.cc
+++ b/tests/fe/component_mask_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/component_mask_14.cc b/tests/fe/component_mask_14.cc
index f054c82033..c0eeb70851 100644
--- a/tests/fe/component_mask_14.cc
+++ b/tests/fe/component_mask_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/curl_curl_01.cc b/tests/fe/curl_curl_01.cc
index b4cb4fad90..e26a936b9b 100644
--- a/tests/fe/curl_curl_01.cc
+++ b/tests/fe/curl_curl_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2022 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/deformed_projection.h b/tests/fe/deformed_projection.h
index eabccc3f4b..d35194cab1 100644
--- a/tests/fe/deformed_projection.h
+++ b/tests/fe/deformed_projection.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/derivatives.cc b/tests/fe/derivatives.cc
index 529c9549e0..4ea5ee6472 100644
--- a/tests/fe/derivatives.cc
+++ b/tests/fe/derivatives.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/derivatives_bernstein.cc b/tests/fe/derivatives_bernstein.cc
index 8ce451249b..713a1c24b3 100644
--- a/tests/fe/derivatives_bernstein.cc
+++ b/tests/fe/derivatives_bernstein.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/derivatives_face.cc b/tests/fe/derivatives_face.cc
index 314757ffac..d0876cf53d 100644
--- a/tests/fe/derivatives_face.cc
+++ b/tests/fe/derivatives_face.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/dgq_1.cc b/tests/fe/dgq_1.cc
index 974ad0fea1..ecb77b6645 100644
--- a/tests/fe/dgq_1.cc
+++ b/tests/fe/dgq_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/face_to_cell_q1_2d.cc b/tests/fe/face_to_cell_q1_2d.cc
index 603f72da42..695d3650d0 100644
--- a/tests/fe/face_to_cell_q1_2d.cc
+++ b/tests/fe/face_to_cell_q1_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/face_to_cell_q2_2d.cc b/tests/fe/face_to_cell_q2_2d.cc
index 87bc64166b..8cb1aba62e 100644
--- a/tests/fe/face_to_cell_q2_2d.cc
+++ b/tests/fe/face_to_cell_q2_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/face_to_cell_q2xq2_2d.cc b/tests/fe/face_to_cell_q2xq2_2d.cc
index 50309ba641..8d23ca2c8c 100644
--- a/tests/fe/face_to_cell_q2xq2_2d.cc
+++ b/tests/fe/face_to_cell_q2xq2_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/face_to_cell_q3_2d.cc b/tests/fe/face_to_cell_q3_2d.cc
index ee7721ebba..ddf454086a 100644
--- a/tests/fe/face_to_cell_q3_2d.cc
+++ b/tests/fe/face_to_cell_q3_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/face_to_cell_q3xq4_2d.cc b/tests/fe/face_to_cell_q3xq4_2d.cc
index 874d3394da..2fe76d825c 100644
--- a/tests/fe/face_to_cell_q3xq4_2d.cc
+++ b/tests/fe/face_to_cell_q3xq4_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/face_to_cell_q4_2d.cc b/tests/fe/face_to_cell_q4_2d.cc
index 56efd4e298..ccab084575 100644
--- a/tests/fe/face_to_cell_q4_2d.cc
+++ b/tests/fe/face_to_cell_q4_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_abf_gradient_divergence_theorem.cc b/tests/fe/fe_abf_gradient_divergence_theorem.cc
index 07ae1795e0..bf9fe0c42b 100644
--- a/tests/fe/fe_abf_gradient_divergence_theorem.cc
+++ b/tests/fe/fe_abf_gradient_divergence_theorem.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_br.cc b/tests/fe/fe_br.cc
index 028b707a01..5b2bd9a551 100644
--- a/tests/fe/fe_br.cc
+++ b/tests/fe/fe_br.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_2_fe_abf.cc b/tests/fe/fe_conformity_dim_2_fe_abf.cc
index f476083509..7ca2cb8910 100644
--- a/tests/fe/fe_conformity_dim_2_fe_abf.cc
+++ b/tests/fe/fe_conformity_dim_2_fe_abf.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_2_fe_bdm.cc b/tests/fe/fe_conformity_dim_2_fe_bdm.cc
index 6eb46c25d0..0856a19035 100644
--- a/tests/fe/fe_conformity_dim_2_fe_bdm.cc
+++ b/tests/fe/fe_conformity_dim_2_fe_bdm.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_2_fe_nedelec.cc b/tests/fe/fe_conformity_dim_2_fe_nedelec.cc
index 1fb628ecc2..8a4d25e531 100644
--- a/tests/fe/fe_conformity_dim_2_fe_nedelec.cc
+++ b/tests/fe/fe_conformity_dim_2_fe_nedelec.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_2_fe_nedelec_sz.cc b/tests/fe/fe_conformity_dim_2_fe_nedelec_sz.cc
index c17f37fad1..dfe3aba82c 100644
--- a/tests/fe/fe_conformity_dim_2_fe_nedelec_sz.cc
+++ b/tests/fe/fe_conformity_dim_2_fe_nedelec_sz.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_2_fe_rt.cc b/tests/fe/fe_conformity_dim_2_fe_rt.cc
index 3cc9a7978d..a78a6e18d0 100644
--- a/tests/fe/fe_conformity_dim_2_fe_rt.cc
+++ b/tests/fe/fe_conformity_dim_2_fe_rt.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_2_fe_rt_nodal.cc b/tests/fe/fe_conformity_dim_2_fe_rt_nodal.cc
index 399b1b383d..983d3213df 100644
--- a/tests/fe/fe_conformity_dim_2_fe_rt_nodal.cc
+++ b/tests/fe/fe_conformity_dim_2_fe_rt_nodal.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_3_fe_nedelec.cc b/tests/fe/fe_conformity_dim_3_fe_nedelec.cc
index 0d2ec3123c..abca046f89 100644
--- a/tests/fe/fe_conformity_dim_3_fe_nedelec.cc
+++ b/tests/fe/fe_conformity_dim_3_fe_nedelec.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_3_fe_nedelec_sz.cc b/tests/fe/fe_conformity_dim_3_fe_nedelec_sz.cc
index 68142a248b..e8d8108fd5 100644
--- a/tests/fe/fe_conformity_dim_3_fe_nedelec_sz.cc
+++ b/tests/fe/fe_conformity_dim_3_fe_nedelec_sz.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_3_fe_q.cc b/tests/fe/fe_conformity_dim_3_fe_q.cc
index 3e788ca876..e265a0e5c3 100644
--- a/tests/fe/fe_conformity_dim_3_fe_q.cc
+++ b/tests/fe/fe_conformity_dim_3_fe_q.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_3_fe_rt.cc b/tests/fe/fe_conformity_dim_3_fe_rt.cc
index 71216136c8..26fd85903e 100644
--- a/tests/fe/fe_conformity_dim_3_fe_rt.cc
+++ b/tests/fe/fe_conformity_dim_3_fe_rt.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_dim_3_fe_rt_nodal.cc b/tests/fe/fe_conformity_dim_3_fe_rt_nodal.cc
index 367115a6c7..acde6d7e0d 100644
--- a/tests/fe/fe_conformity_dim_3_fe_rt_nodal.cc
+++ b/tests/fe/fe_conformity_dim_3_fe_rt_nodal.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_conformity_test.h b/tests/fe/fe_conformity_test.h
index 5ef27e548e..b53daa1237 100644
--- a/tests/fe/fe_conformity_test.h
+++ b/tests/fe/fe_conformity_test.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_01.cc b/tests/fe/fe_enriched_01.cc
index 10e109844d..1600c4d2f6 100644
--- a/tests/fe/fe_enriched_01.cc
+++ b/tests/fe/fe_enriched_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_02.cc b/tests/fe/fe_enriched_02.cc
index 809f27c66c..6119655d52 100644
--- a/tests/fe/fe_enriched_02.cc
+++ b/tests/fe/fe_enriched_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_03.cc b/tests/fe/fe_enriched_03.cc
index b6af63010d..d71b367ff1 100644
--- a/tests/fe/fe_enriched_03.cc
+++ b/tests/fe/fe_enriched_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_04.cc b/tests/fe/fe_enriched_04.cc
index b1476bd7ed..3ce046f31a 100644
--- a/tests/fe/fe_enriched_04.cc
+++ b/tests/fe/fe_enriched_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_05.cc b/tests/fe/fe_enriched_05.cc
index fc25194a96..897030dc88 100644
--- a/tests/fe/fe_enriched_05.cc
+++ b/tests/fe/fe_enriched_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_06.cc b/tests/fe/fe_enriched_06.cc
index 8ea8fb7034..221e63b47d 100644
--- a/tests/fe/fe_enriched_06.cc
+++ b/tests/fe/fe_enriched_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_07.cc b/tests/fe/fe_enriched_07.cc
index 8b15387840..c9e7d3bcd2 100644
--- a/tests/fe/fe_enriched_07.cc
+++ b/tests/fe/fe_enriched_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_08.cc b/tests/fe/fe_enriched_08.cc
index 96cf627c11..e7a358658b 100644
--- a/tests/fe/fe_enriched_08.cc
+++ b/tests/fe/fe_enriched_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_08a.cc b/tests/fe/fe_enriched_08a.cc
index d0873b21bb..69b97e798d 100644
--- a/tests/fe/fe_enriched_08a.cc
+++ b/tests/fe/fe_enriched_08a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_color_01.cc b/tests/fe/fe_enriched_color_01.cc
index bddbdeee33..0326e9d789 100644
--- a/tests/fe/fe_enriched_color_01.cc
+++ b/tests/fe/fe_enriched_color_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_color_05.cc b/tests/fe/fe_enriched_color_05.cc
index 79afb679ba..0d8743fb56 100644
--- a/tests/fe/fe_enriched_color_05.cc
+++ b/tests/fe/fe_enriched_color_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_color_06.cc b/tests/fe/fe_enriched_color_06.cc
index 1cbcec1981..efbe5290fb 100644
--- a/tests/fe/fe_enriched_color_06.cc
+++ b/tests/fe/fe_enriched_color_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_color_08.cc b/tests/fe/fe_enriched_color_08.cc
index 15fd59a366..50b13d1795 100644
--- a/tests/fe/fe_enriched_color_08.cc
+++ b/tests/fe/fe_enriched_color_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_compare_to_fe_system.cc b/tests/fe/fe_enriched_compare_to_fe_system.cc
index 4fd21a9d77..fc4fb2b2e5 100644
--- a/tests/fe/fe_enriched_compare_to_fe_system.cc
+++ b/tests/fe/fe_enriched_compare_to_fe_system.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_compare_to_fe_system_2.cc b/tests/fe/fe_enriched_compare_to_fe_system_2.cc
index 9cd61abe13..2f98f65e9c 100644
--- a/tests/fe/fe_enriched_compare_to_fe_system_2.cc
+++ b/tests/fe/fe_enriched_compare_to_fe_system_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_step-36.cc b/tests/fe/fe_enriched_step-36.cc
index bd16c1e819..b8716c4725 100644
--- a/tests/fe/fe_enriched_step-36.cc
+++ b/tests/fe/fe_enriched_step-36.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_enriched_step-36b.cc b/tests/fe/fe_enriched_step-36b.cc
index 1bb4dfb12d..1eaa5ca5cf 100644
--- a/tests/fe/fe_enriched_step-36b.cc
+++ b/tests/fe/fe_enriched_step-36b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_face_orientation_nedelec.h b/tests/fe/fe_face_orientation_nedelec.h
index b809875516..1886c9a4d3 100644
--- a/tests/fe/fe_face_orientation_nedelec.h
+++ b/tests/fe/fe_face_orientation_nedelec.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_face_orientation_nedelec_0.cc b/tests/fe/fe_face_orientation_nedelec_0.cc
index 946035613c..ed91919880 100644
--- a/tests/fe/fe_face_orientation_nedelec_0.cc
+++ b/tests/fe/fe_face_orientation_nedelec_0.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_face_values_1d.cc b/tests/fe/fe_face_values_1d.cc
index b3d7d1df80..933b897f76 100644
--- a/tests/fe/fe_face_values_1d.cc
+++ b/tests/fe/fe_face_values_1d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_nedelec_sz_non_rect_2d.cc b/tests/fe/fe_nedelec_sz_non_rect_2d.cc
index fb7946e186..929082c803 100644
--- a/tests/fe/fe_nedelec_sz_non_rect_2d.cc
+++ b/tests/fe/fe_nedelec_sz_non_rect_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_nedelec_sz_non_rect_face.cc b/tests/fe/fe_nedelec_sz_non_rect_face.cc
index 4487096427..d915fab51b 100644
--- a/tests/fe/fe_nedelec_sz_non_rect_face.cc
+++ b/tests/fe/fe_nedelec_sz_non_rect_face.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_nothing.cc b/tests/fe/fe_nothing.cc
index c6e91bfa5f..e1f2b0694f 100644
--- a/tests/fe/fe_nothing.cc
+++ b/tests/fe/fe_nothing.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_project_2d.cc b/tests/fe/fe_project_2d.cc
index 5e911541d7..97d9d52126 100644
--- a/tests/fe/fe_project_2d.cc
+++ b/tests/fe/fe_project_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_project_3d.cc b/tests/fe/fe_project_3d.cc
index 8b8c200f1c..09c71e4c67 100644
--- a/tests/fe/fe_project_3d.cc
+++ b/tests/fe/fe_project_3d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_q_bubbles.cc b/tests/fe/fe_q_bubbles.cc
index 35c7aa2753..bc2555e9db 100644
--- a/tests/fe/fe_q_bubbles.cc
+++ b/tests/fe/fe_q_bubbles.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 1999 - 2022 by the deal.II authors
+ * Copyright (C) 1999 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/fe/fe_q_dg0.cc b/tests/fe/fe_q_dg0.cc
index ea1e388394..d4a75f33a5 100644
--- a/tests/fe/fe_q_dg0.cc
+++ b/tests/fe/fe_q_dg0.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_rt_gradient_divergence_theorem.cc b/tests/fe/fe_rt_gradient_divergence_theorem.cc
index 81a2f16034..06ec952bac 100644
--- a/tests/fe/fe_rt_gradient_divergence_theorem.cc
+++ b/tests/fe/fe_rt_gradient_divergence_theorem.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_rt_hessian_divergence_theorem.cc b/tests/fe/fe_rt_hessian_divergence_theorem.cc
index bfbf035899..b6137487ed 100644
--- a/tests/fe/fe_rt_hessian_divergence_theorem.cc
+++ b/tests/fe/fe_rt_hessian_divergence_theorem.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_series_06.cc b/tests/fe/fe_series_06.cc
index dd3f04cacb..c19ecd48f0 100644
--- a/tests/fe/fe_series_06.cc
+++ b/tests/fe/fe_series_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_system_components_base.cc b/tests/fe/fe_system_components_base.cc
index 1dc3998c2d..630be3a83b 100644
--- a/tests/fe/fe_system_components_base.cc
+++ b/tests/fe/fe_system_components_base.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_system_from_list.cc b/tests/fe/fe_system_from_list.cc
index 1ab35a2e0e..a54aecdefc 100644
--- a/tests/fe/fe_system_from_list.cc
+++ b/tests/fe/fe_system_from_list.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2018 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_tools.cc b/tests/fe/fe_tools.cc
index d6f4bf66d5..3a2fca2de7 100644
--- a/tests/fe/fe_tools.cc
+++ b/tests/fe/fe_tools.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_tools_test.cc b/tests/fe/fe_tools_test.cc
index fae4be3316..11a65205d4 100644
--- a/tests/fe/fe_tools_test.cc
+++ b/tests/fe/fe_tools_test.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2021 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_values_function_manifold.cc b/tests/fe/fe_values_function_manifold.cc
index 72da217899..a52d56aff8 100644
--- a/tests/fe/fe_values_function_manifold.cc
+++ b/tests/fe/fe_values_function_manifold.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_values_no_mapping.cc b/tests/fe/fe_values_no_mapping.cc
index fe8560d6c7..4f1a0265f6 100644
--- a/tests/fe/fe_values_no_mapping.cc
+++ b/tests/fe/fe_values_no_mapping.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_values_view_02.cc b/tests/fe/fe_values_view_02.cc
index 8a0031faba..b66238e379 100644
--- a/tests/fe/fe_values_view_02.cc
+++ b/tests/fe/fe_values_view_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2020 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_values_view_04.cc b/tests/fe/fe_values_view_04.cc
index b956bf321b..bce46a200f 100644
--- a/tests/fe/fe_values_view_04.cc
+++ b/tests/fe/fe_values_view_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2020 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_values_view_30.cc b/tests/fe/fe_values_view_30.cc
index 90444bb4ce..179efcf965 100644
--- a/tests/fe/fe_values_view_30.cc
+++ b/tests/fe/fe_values_view_30.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_values_view_get_function_from_local_dof_values_01.cc b/tests/fe/fe_values_view_get_function_from_local_dof_values_01.cc
index d2b9cdad4a..b9d38fbf55 100644
--- a/tests/fe/fe_values_view_get_function_from_local_dof_values_01.cc
+++ b/tests/fe/fe_values_view_get_function_from_local_dof_values_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/fe_values_view_get_function_from_local_dof_values_02.cc b/tests/fe/fe_values_view_get_function_from_local_dof_values_02.cc
index 249198f294..6593af615d 100644
--- a/tests/fe/fe_values_view_get_function_from_local_dof_values_02.cc
+++ b/tests/fe/fe_values_view_get_function_from_local_dof_values_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/generic_dofs_per_object_01.cc b/tests/fe/generic_dofs_per_object_01.cc
index b171d872bf..c97d7bc415 100644
--- a/tests/fe/generic_dofs_per_object_01.cc
+++ b/tests/fe/generic_dofs_per_object_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/get_fe_by_name_01.cc b/tests/fe/get_fe_by_name_01.cc
index 8b832c18c7..3e0b571f8a 100644
--- a/tests/fe/get_fe_by_name_01.cc
+++ b/tests/fe/get_fe_by_name_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/interpolate_common.h b/tests/fe/interpolate_common.h
index 99c8fecec5..d8a4d24772 100644
--- a/tests/fe/interpolate_common.h
+++ b/tests/fe/interpolate_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/jacobians.cc b/tests/fe/jacobians.cc
index cad8982749..1da8e09679 100644
--- a/tests/fe/jacobians.cc
+++ b/tests/fe/jacobians.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/jacobians_face.cc b/tests/fe/jacobians_face.cc
index 41b604ba45..f31772817b 100644
--- a/tests/fe/jacobians_face.cc
+++ b/tests/fe/jacobians_face.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/jacobians_face_cartesian.cc b/tests/fe/jacobians_face_cartesian.cc
index fc80961851..1c696fc840 100644
--- a/tests/fe/jacobians_face_cartesian.cc
+++ b/tests/fe/jacobians_face_cartesian.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/jacobians_face_fe_field.cc b/tests/fe/jacobians_face_fe_field.cc
index efb06fee7f..4c2d3c4d5d 100644
--- a/tests/fe/jacobians_face_fe_field.cc
+++ b/tests/fe/jacobians_face_fe_field.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/nedelec.cc b/tests/fe/nedelec.cc
index 14daeb67ce..8975bfe3be 100644
--- a/tests/fe/nedelec.cc
+++ b/tests/fe/nedelec.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/nedelec_2.cc b/tests/fe/nedelec_2.cc
index 36d63175f8..8b8ded94e9 100644
--- a/tests/fe/nedelec_2.cc
+++ b/tests/fe/nedelec_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2020 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/nedelec_crash_01.cc b/tests/fe/nedelec_crash_01.cc
index bd297ba16f..0d0b3e11c6 100644
--- a/tests/fe/nedelec_crash_01.cc
+++ b/tests/fe/nedelec_crash_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/nedelec_non_rect_2d.cc b/tests/fe/nedelec_non_rect_2d.cc
index 6408f7363a..89d0efec9b 100644
--- a/tests/fe/nedelec_non_rect_2d.cc
+++ b/tests/fe/nedelec_non_rect_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/nedelec_non_rect_face.cc b/tests/fe/nedelec_non_rect_face.cc
index 2f20e408ff..4535862709 100644
--- a/tests/fe/nedelec_non_rect_face.cc
+++ b/tests/fe/nedelec_non_rect_face.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/nedelec_projection_01.cc b/tests/fe/nedelec_projection_01.cc
index 7061b8dd9e..08e9b7ecae 100644
--- a/tests/fe/nedelec_projection_01.cc
+++ b/tests/fe/nedelec_projection_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/non_primitive_1.cc b/tests/fe/non_primitive_1.cc
index 4771d27f8e..9a5cc68ed5 100644
--- a/tests/fe/non_primitive_1.cc
+++ b/tests/fe/non_primitive_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/non_primitive_2.cc b/tests/fe/non_primitive_2.cc
index c6361d84fc..8f5b1a4a62 100644
--- a/tests/fe/non_primitive_2.cc
+++ b/tests/fe/non_primitive_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/numbering.cc b/tests/fe/numbering.cc
index a60a4cbdf9..031f18e9a7 100644
--- a/tests/fe/numbering.cc
+++ b/tests/fe/numbering.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2023 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/p1nc_02.cc b/tests/fe/p1nc_02.cc
index 8b89e4c236..499d825bfc 100644
--- a/tests/fe/p1nc_02.cc
+++ b/tests/fe/p1nc_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/p1nc_03.cc b/tests/fe/p1nc_03.cc
index cf4d0c254f..0f707973fe 100644
--- a/tests/fe/p1nc_03.cc
+++ b/tests/fe/p1nc_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/p1nc_04.cc b/tests/fe/p1nc_04.cc
index 7d75f220af..e13b325b2c 100644
--- a/tests/fe/p1nc_04.cc
+++ b/tests/fe/p1nc_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/p1nc_06.cc b/tests/fe/p1nc_06.cc
index f5a682d9bb..ceb74c17bd 100644
--- a/tests/fe/p1nc_06.cc
+++ b/tests/fe/p1nc_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/p1nc_07.cc b/tests/fe/p1nc_07.cc
index a54c0ac7c0..b4c6735dc6 100644
--- a/tests/fe/p1nc_07.cc
+++ b/tests/fe/p1nc_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/p1nc_08.cc b/tests/fe/p1nc_08.cc
index 5b8c502c27..ebebcf6ad9 100644
--- a/tests/fe/p1nc_08.cc
+++ b/tests/fe/p1nc_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/rt_2.cc b/tests/fe/rt_2.cc
index b770982d4a..c0083a9fdc 100644
--- a/tests/fe/rt_2.cc
+++ b/tests/fe/rt_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/rt_approximation_01.cc b/tests/fe/rt_approximation_01.cc
index 9ad6db04e3..60b4d632d8 100644
--- a/tests/fe/rt_approximation_01.cc
+++ b/tests/fe/rt_approximation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/rt_bubbles_2.cc b/tests/fe/rt_bubbles_2.cc
index ca3b57b860..42f72a9280 100644
--- a/tests/fe/rt_bubbles_2.cc
+++ b/tests/fe/rt_bubbles_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/shapes_bernstein.cc b/tests/fe/shapes_bernstein.cc
index 59023336b0..9564f2613e 100644
--- a/tests/fe/shapes_bernstein.cc
+++ b/tests/fe/shapes_bernstein.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/shapes_faceq.cc b/tests/fe/shapes_faceq.cc
index 8a593f6f99..5c2d42747e 100644
--- a/tests/fe/shapes_faceq.cc
+++ b/tests/fe/shapes_faceq.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/shapes_traceq.cc b/tests/fe/shapes_traceq.cc
index 7ffafbd65b..7d298f6c43 100644
--- a/tests/fe/shapes_traceq.cc
+++ b/tests/fe/shapes_traceq.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/transfer.cc b/tests/fe/transfer.cc
index 6ea955686d..d877d7e3db 100644
--- a/tests/fe/transfer.cc
+++ b/tests/fe/transfer.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fe/up_and_down.cc b/tests/fe/up_and_down.cc
index 45cd0d5f7a..6822100e4d 100644
--- a/tests/fe/up_and_down.cc
+++ b/tests/fe/up_and_down.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2020 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/feinterface/fe_interface_view_01.cc b/tests/feinterface/fe_interface_view_01.cc
index e2e752c044..e708a8fd56 100644
--- a/tests/feinterface/fe_interface_view_01.cc
+++ b/tests/feinterface/fe_interface_view_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/feinterface/fe_interface_view_02.cc b/tests/feinterface/fe_interface_view_02.cc
index c785b520c2..83ea719ef5 100644
--- a/tests/feinterface/fe_interface_view_02.cc
+++ b/tests/feinterface/fe_interface_view_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/feinterface/fe_interface_view_get_function_from_local_dof_values_01.cc b/tests/feinterface/fe_interface_view_get_function_from_local_dof_values_01.cc
index 8963b14f44..84042a9a87 100644
--- a/tests/feinterface/fe_interface_view_get_function_from_local_dof_values_01.cc
+++ b/tests/feinterface/fe_interface_view_get_function_from_local_dof_values_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/feinterface/fe_interface_view_get_function_from_local_dof_values_02.cc b/tests/feinterface/fe_interface_view_get_function_from_local_dof_values_02.cc
index d901aa600d..0ce5b4c8c4 100644
--- a/tests/feinterface/fe_interface_view_get_function_from_local_dof_values_02.cc
+++ b/tests/feinterface/fe_interface_view_get_function_from_local_dof_values_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/feinterface/step-12.cc b/tests/feinterface/step-12.cc
index d9ee2a1f9d..9e5f5319f2 100644
--- a/tests/feinterface/step-12.cc
+++ b/tests/feinterface/step-12.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2022 by the deal.II authors
+ * Copyright (C) 2009 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/feinterface/stokes.cc b/tests/feinterface/stokes.cc
index 87aaeb2502..3305c9cd64 100644
--- a/tests/feinterface/stokes.cc
+++ b/tests/feinterface/stokes.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/full_matrix/full_matrix_iterator_01.cc b/tests/full_matrix/full_matrix_iterator_01.cc
index f9fd3ad179..fe52fe3407 100644
--- a/tests/full_matrix/full_matrix_iterator_01.cc
+++ b/tests/full_matrix/full_matrix_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/full_matrix/full_matrix_vector_01.cc b/tests/full_matrix/full_matrix_vector_01.cc
index e2c8f24d08..bb1a129e22 100644
--- a/tests/full_matrix/full_matrix_vector_01.cc
+++ b/tests/full_matrix/full_matrix_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/full_matrix/full_matrix_vector_02.cc b/tests/full_matrix/full_matrix_vector_02.cc
index 419bd2c5f4..feb3431b81 100644
--- a/tests/full_matrix/full_matrix_vector_02.cc
+++ b/tests/full_matrix/full_matrix_vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/full_matrix/full_matrix_vector_05.cc b/tests/full_matrix/full_matrix_vector_05.cc
index d4d9d0aaca..a49bb534d7 100644
--- a/tests/full_matrix/full_matrix_vector_05.cc
+++ b/tests/full_matrix/full_matrix_vector_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/full_matrix/full_matrix_vector_06.cc b/tests/full_matrix/full_matrix_vector_06.cc
index 57cdff120a..92887af40a 100644
--- a/tests/full_matrix/full_matrix_vector_06.cc
+++ b/tests/full_matrix/full_matrix_vector_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/full_matrix/full_matrix_vector_07.cc b/tests/full_matrix/full_matrix_vector_07.cc
index ad3f90d3f6..11d37ae96a 100644
--- a/tests/full_matrix/full_matrix_vector_07.cc
+++ b/tests/full_matrix/full_matrix_vector_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_distributed_tria_01.cc b/tests/fullydistributed_grids/copy_distributed_tria_01.cc
index 23fbdd174b..7f975412df 100644
--- a/tests/fullydistributed_grids/copy_distributed_tria_01.cc
+++ b/tests/fullydistributed_grids/copy_distributed_tria_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_distributed_tria_02.cc b/tests/fullydistributed_grids/copy_distributed_tria_02.cc
index 1e7dd9c5f9..cf3f4cf8ba 100644
--- a/tests/fullydistributed_grids/copy_distributed_tria_02.cc
+++ b/tests/fullydistributed_grids/copy_distributed_tria_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_distributed_tria_03.cc b/tests/fullydistributed_grids/copy_distributed_tria_03.cc
index a32eb53043..588751ab72 100644
--- a/tests/fullydistributed_grids/copy_distributed_tria_03.cc
+++ b/tests/fullydistributed_grids/copy_distributed_tria_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_01.cc b/tests/fullydistributed_grids/copy_serial_tria_01.cc
index 9079b57cb0..2d24adc0fd 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_01.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_02.cc b/tests/fullydistributed_grids/copy_serial_tria_02.cc
index 76407bff5b..f56b787cf3 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_02.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_03.cc b/tests/fullydistributed_grids/copy_serial_tria_03.cc
index 0c5c26f23d..14bf6deeef 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_03.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_04.cc b/tests/fullydistributed_grids/copy_serial_tria_04.cc
index 2456c39dea..09a677f097 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_04.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_05.cc b/tests/fullydistributed_grids/copy_serial_tria_05.cc
index cc62ddd958..8bd179eee2 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_05.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_06.cc b/tests/fullydistributed_grids/copy_serial_tria_06.cc
index e280861482..cc4aab3842 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_06.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_07.cc b/tests/fullydistributed_grids/copy_serial_tria_07.cc
index 6c581f7faa..cbfa542dac 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_07.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_08.cc b/tests/fullydistributed_grids/copy_serial_tria_08.cc
index 66e378203b..32a8a13393 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_08.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_09.cc b/tests/fullydistributed_grids/copy_serial_tria_09.cc
index dead2f68a9..1d6b01e0be 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_09.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_10.cc b/tests/fullydistributed_grids/copy_serial_tria_10.cc
index b576af7ab1..1b7522e326 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_10.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_11.cc b/tests/fullydistributed_grids/copy_serial_tria_11.cc
index cfc12402ec..31a80d7268 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_11.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_12.cc b/tests/fullydistributed_grids/copy_serial_tria_12.cc
index 0ec9cf4790..3c4182d4b7 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_12.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/copy_serial_tria_grouped_01.cc b/tests/fullydistributed_grids/copy_serial_tria_grouped_01.cc
index 08f4383b51..fa3cd52a5d 100644
--- a/tests/fullydistributed_grids/copy_serial_tria_grouped_01.cc
+++ b/tests/fullydistributed_grids/copy_serial_tria_grouped_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/create_manually_01.cc b/tests/fullydistributed_grids/create_manually_01.cc
index 4e4d64c6a7..1732099e2f 100644
--- a/tests/fullydistributed_grids/create_manually_01.cc
+++ b/tests/fullydistributed_grids/create_manually_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/memory_consumption_01.cc b/tests/fullydistributed_grids/memory_consumption_01.cc
index 7c0dbfb29b..d531f55c50 100644
--- a/tests/fullydistributed_grids/memory_consumption_01.cc
+++ b/tests/fullydistributed_grids/memory_consumption_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/repartitioning_01.cc b/tests/fullydistributed_grids/repartitioning_01.cc
index b38a350217..53310129c0 100644
--- a/tests/fullydistributed_grids/repartitioning_01.cc
+++ b/tests/fullydistributed_grids/repartitioning_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/repartitioning_02.cc b/tests/fullydistributed_grids/repartitioning_02.cc
index 84b4da1f10..fc36934523 100644
--- a/tests/fullydistributed_grids/repartitioning_02.cc
+++ b/tests/fullydistributed_grids/repartitioning_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/repartitioning_03.cc b/tests/fullydistributed_grids/repartitioning_03.cc
index 05c077cbbe..a792907147 100644
--- a/tests/fullydistributed_grids/repartitioning_03.cc
+++ b/tests/fullydistributed_grids/repartitioning_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/repartitioning_04.cc b/tests/fullydistributed_grids/repartitioning_04.cc
index e6acef668a..8c30ea83de 100644
--- a/tests/fullydistributed_grids/repartitioning_04.cc
+++ b/tests/fullydistributed_grids/repartitioning_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/repartitioning_05.cc b/tests/fullydistributed_grids/repartitioning_05.cc
index 2e8d1d8917..4f408edd1e 100644
--- a/tests/fullydistributed_grids/repartitioning_05.cc
+++ b/tests/fullydistributed_grids/repartitioning_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/repartitioning_06.cc b/tests/fullydistributed_grids/repartitioning_06.cc
index 3b9cefc5fa..38bf3d79e5 100644
--- a/tests/fullydistributed_grids/repartitioning_06.cc
+++ b/tests/fullydistributed_grids/repartitioning_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/repartitioning_07.cc b/tests/fullydistributed_grids/repartitioning_07.cc
index 81695444e2..ae519ca5cd 100644
--- a/tests/fullydistributed_grids/repartitioning_07.cc
+++ b/tests/fullydistributed_grids/repartitioning_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/repartitioning_08.cc b/tests/fullydistributed_grids/repartitioning_08.cc
index f220e0e1f1..abb8045226 100644
--- a/tests/fullydistributed_grids/repartitioning_08.cc
+++ b/tests/fullydistributed_grids/repartitioning_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/save_load_01.cc b/tests/fullydistributed_grids/save_load_01.cc
index 8bfe26b155..8af94f0ae4 100644
--- a/tests/fullydistributed_grids/save_load_01.cc
+++ b/tests/fullydistributed_grids/save_load_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/fullydistributed_grids/solution_transfer_01.cc b/tests/fullydistributed_grids/solution_transfer_01.cc
index 0b7b20612f..293619744e 100644
--- a/tests/fullydistributed_grids/solution_transfer_01.cc
+++ b/tests/fullydistributed_grids/solution_transfer_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/gla/block_mat_02.cc b/tests/gla/block_mat_02.cc
index e2f8915549..93ba4066e4 100644
--- a/tests/gla/block_mat_02.cc
+++ b/tests/gla/block_mat_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/gla/block_mat_03.cc b/tests/gla/block_mat_03.cc
index cde0c1c6ee..318d97c695 100644
--- a/tests/gla/block_mat_03.cc
+++ b/tests/gla/block_mat_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/gla/block_vec_02.cc b/tests/gla/block_vec_02.cc
index 4946b78f86..cb9f33ffac 100644
--- a/tests/gla/block_vec_02.cc
+++ b/tests/gla/block_vec_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/gla/mat_03.cc b/tests/gla/mat_03.cc
index 5ec9452e3e..f1fde37466 100644
--- a/tests/gla/mat_03.cc
+++ b/tests/gla/mat_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/gla/mat_04.cc b/tests/gla/mat_04.cc
index 7909773f4f..32e4f5764c 100644
--- a/tests/gla/mat_04.cc
+++ b/tests/gla/mat_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/gla/vec_03.cc b/tests/gla/vec_03.cc
index a78b4ff655..6e4dc9be6b 100644
--- a/tests/gla/vec_03.cc
+++ b/tests/gla/vec_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/gmsh/gmsh_api_01.cc b/tests/gmsh/gmsh_api_01.cc
index a08b15ef02..00c9afd172 100644
--- a/tests/gmsh/gmsh_api_01.cc
+++ b/tests/gmsh/gmsh_api_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/gmsh/gmsh_api_03.cc b/tests/gmsh/gmsh_api_03.cc
index 56a384dda5..79d5038cb5 100644
--- a/tests/gmsh/gmsh_api_03.cc
+++ b/tests/gmsh/gmsh_api_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/gmsh/gmsh_api_05.cc b/tests/gmsh/gmsh_api_05.cc
index 955b83b222..7601312c6f 100644
--- a/tests/gmsh/gmsh_api_05.cc
+++ b/tests/gmsh/gmsh_api_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/cell_id_08.cc b/tests/grid/cell_id_08.cc
index edd6d31086..ab5afabfc4 100644
--- a/tests/grid/cell_id_08.cc
+++ b/tests/grid/cell_id_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/distributed_compute_point_locations_03.cc b/tests/grid/distributed_compute_point_locations_03.cc
index 008cfd83cb..516e4b83c9 100644
--- a/tests/grid/distributed_compute_point_locations_03.cc
+++ b/tests/grid/distributed_compute_point_locations_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/enclosing_sphere_01.cc b/tests/grid/enclosing_sphere_01.cc
index 33f45ada95..05e494ab33 100644
--- a/tests/grid/enclosing_sphere_01.cc
+++ b/tests/grid/enclosing_sphere_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/extent_in_direction.cc b/tests/grid/extent_in_direction.cc
index 1f907ca737..0b105d4532 100644
--- a/tests/grid/extent_in_direction.cc
+++ b/tests/grid/extent_in_direction.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/extrude_copy_manifold.cc b/tests/grid/extrude_copy_manifold.cc
index eeaa626640..42e6d7f9c0 100644
--- a/tests/grid/extrude_copy_manifold.cc
+++ b/tests/grid/extrude_copy_manifold.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/filtered_iterator.cc b/tests/grid/filtered_iterator.cc
index 8c2337620e..b86b6b1b16 100644
--- a/tests/grid/filtered_iterator.cc
+++ b/tests/grid/filtered_iterator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/filtered_iterator_02.cc b/tests/grid/filtered_iterator_02.cc
index 9be87521b8..72b6662966 100644
--- a/tests/grid/filtered_iterator_02.cc
+++ b/tests/grid/filtered_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/filtered_iterator_03.cc b/tests/grid/filtered_iterator_03.cc
index c7b1360b98..aa412dd7e5 100644
--- a/tests/grid/filtered_iterator_03.cc
+++ b/tests/grid/filtered_iterator_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/filtered_iterator_08.cc b/tests/grid/filtered_iterator_08.cc
index 16991e5a83..33def94a19 100644
--- a/tests/grid/filtered_iterator_08.cc
+++ b/tests/grid/filtered_iterator_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/find_all_active_cells_around_point_01.cc b/tests/grid/find_all_active_cells_around_point_01.cc
index 4c4be04bb5..470d72dff4 100644
--- a/tests/grid/find_all_active_cells_around_point_01.cc
+++ b/tests/grid/find_all_active_cells_around_point_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/find_all_active_cells_around_point_01_b.cc b/tests/grid/find_all_active_cells_around_point_01_b.cc
index 411a9a2895..62282a0cd0 100644
--- a/tests/grid/find_all_active_cells_around_point_01_b.cc
+++ b/tests/grid/find_all_active_cells_around_point_01_b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/find_all_active_cells_around_point_02.cc b/tests/grid/find_all_active_cells_around_point_02.cc
index a6b4213e21..75cc3e04f9 100644
--- a/tests/grid/find_all_active_cells_around_point_02.cc
+++ b/tests/grid/find_all_active_cells_around_point_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/find_all_active_cells_around_point_03.cc b/tests/grid/find_all_active_cells_around_point_03.cc
index 3c2e6f47b6..7314a9e62e 100644
--- a/tests/grid/find_all_active_cells_around_point_03.cc
+++ b/tests/grid/find_all_active_cells_around_point_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/get_coarse_mesh_description_01.cc b/tests/grid/get_coarse_mesh_description_01.cc
index 41cd70f69e..afdb8c9f63 100644
--- a/tests/grid/get_coarse_mesh_description_01.cc
+++ b/tests/grid/get_coarse_mesh_description_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/global_ids_01.cc b/tests/grid/global_ids_01.cc
index 64afe519b2..9b6c471be8 100644
--- a/tests/grid/global_ids_01.cc
+++ b/tests/grid/global_ids_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/global_ids_03.cc b/tests/grid/global_ids_03.cc
index 33ebbddf68..aa3748e3f5 100644
--- a/tests/grid/global_ids_03.cc
+++ b/tests/grid/global_ids_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_09.cc b/tests/grid/grid_generator_09.cc
index 4ec10371de..9152c04c3d 100644
--- a/tests/grid/grid_generator_09.cc
+++ b/tests/grid/grid_generator_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2018 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_10.cc b/tests/grid/grid_generator_10.cc
index 833a58e7fb..bbd14802d5 100644
--- a/tests/grid/grid_generator_10.cc
+++ b/tests/grid/grid_generator_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_airfoil_01.cc b/tests/grid/grid_generator_airfoil_01.cc
index 592210cd3b..6623847174 100644
--- a/tests/grid/grid_generator_airfoil_01.cc
+++ b/tests/grid/grid_generator_airfoil_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_cylinder_shell_colorized.cc b/tests/grid/grid_generator_cylinder_shell_colorized.cc
index 624a22f8b9..f750f17ba2 100644
--- a/tests/grid/grid_generator_cylinder_shell_colorized.cc
+++ b/tests/grid/grid_generator_cylinder_shell_colorized.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2019 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_general_cell_01.cc b/tests/grid/grid_generator_general_cell_01.cc
index 51767b2c8f..84de943c87 100644
--- a/tests/grid/grid_generator_general_cell_01.cc
+++ b/tests/grid/grid_generator_general_cell_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2019 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_general_cell_02.cc b/tests/grid/grid_generator_general_cell_02.cc
index d16ed0ab00..6a06d8f436 100644
--- a/tests/grid/grid_generator_general_cell_02.cc
+++ b/tests/grid/grid_generator_general_cell_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2019 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_marching_cube_algorithm_01.cc b/tests/grid/grid_generator_marching_cube_algorithm_01.cc
index 174dd32763..779aa0aa1a 100644
--- a/tests/grid/grid_generator_marching_cube_algorithm_01.cc
+++ b/tests/grid/grid_generator_marching_cube_algorithm_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_marching_cube_algorithm_02.cc b/tests/grid/grid_generator_marching_cube_algorithm_02.cc
index 739ff8b502..ca9f676eaf 100644
--- a/tests/grid/grid_generator_marching_cube_algorithm_02.cc
+++ b/tests/grid/grid_generator_marching_cube_algorithm_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_non_standard_orientation_mesh_2d.cc b/tests/grid/grid_generator_non_standard_orientation_mesh_2d.cc
index 2b036ab8eb..ef4ba80ea4 100644
--- a/tests/grid/grid_generator_non_standard_orientation_mesh_2d.cc
+++ b/tests/grid/grid_generator_non_standard_orientation_mesh_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_non_standard_orientation_mesh_3d.cc b/tests/grid/grid_generator_non_standard_orientation_mesh_3d.cc
index 92ebb674dd..a114b6d724 100644
--- a/tests/grid/grid_generator_non_standard_orientation_mesh_3d.cc
+++ b/tests/grid/grid_generator_non_standard_orientation_mesh_3d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2023 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_open_torus.cc b/tests/grid/grid_generator_open_torus.cc
index 55e148e3c9..8c6e2f2750 100644
--- a/tests/grid/grid_generator_open_torus.cc
+++ b/tests/grid/grid_generator_open_torus.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_plate_with_a_hole.cc b/tests/grid/grid_generator_plate_with_a_hole.cc
index a2900c60a1..d8a04fb3fa 100644
--- a/tests/grid/grid_generator_plate_with_a_hole.cc
+++ b/tests/grid/grid_generator_plate_with_a_hole.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_plate_with_a_hole_2.cc b/tests/grid/grid_generator_plate_with_a_hole_2.cc
index 35fe9c2d08..b85d068bb6 100644
--- a/tests/grid/grid_generator_plate_with_a_hole_2.cc
+++ b/tests/grid/grid_generator_plate_with_a_hole_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_plate_with_a_hole_3.cc b/tests/grid/grid_generator_plate_with_a_hole_3.cc
index fcde178f3d..eaaed9206e 100644
--- a/tests/grid/grid_generator_plate_with_a_hole_3.cc
+++ b/tests/grid/grid_generator_plate_with_a_hole_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_plate_with_a_hole_4.cc b/tests/grid/grid_generator_plate_with_a_hole_4.cc
index af01f8e12b..965fbd0ec0 100644
--- a/tests/grid/grid_generator_plate_with_a_hole_4.cc
+++ b/tests/grid/grid_generator_plate_with_a_hole_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_simplex.cc b/tests/grid/grid_generator_simplex.cc
index 8c2fc0b528..5ad0e1f164 100644
--- a/tests/grid/grid_generator_simplex.cc
+++ b/tests/grid/grid_generator_simplex.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_generator_subdivided_cylinder.cc b/tests/grid/grid_generator_subdivided_cylinder.cc
index 79d59f7826..4823c7c699 100644
--- a/tests/grid/grid_generator_subdivided_cylinder.cc
+++ b/tests/grid/grid_generator_subdivided_cylinder.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_hyper_shell.cc b/tests/grid/grid_hyper_shell.cc
index 81d7b0a3ac..ef73fb45a6 100644
--- a/tests/grid/grid_hyper_shell.cc
+++ b/tests/grid/grid_hyper_shell.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2020 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_3d.cc b/tests/grid/grid_in_3d.cc
index 6a324a4969..81d76d6cfc 100644
--- a/tests/grid/grid_in_3d.cc
+++ b/tests/grid/grid_in_3d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2021 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_3d_02.cc b/tests/grid/grid_in_3d_02.cc
index ff794742d2..6bbc51676c 100644
--- a/tests/grid/grid_in_3d_02.cc
+++ b/tests/grid/grid_in_3d_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2021 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_abaqus_01.cc b/tests/grid/grid_in_abaqus_01.cc
index b0faf9b296..66a183849b 100644
--- a/tests/grid/grid_in_abaqus_01.cc
+++ b/tests/grid/grid_in_abaqus_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_abaqus_02.cc b/tests/grid/grid_in_abaqus_02.cc
index 59666f593f..3d025f7d0a 100644
--- a/tests/grid/grid_in_abaqus_02.cc
+++ b/tests/grid/grid_in_abaqus_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_comsol_mphtxt_01.cc b/tests/grid/grid_in_comsol_mphtxt_01.cc
index 0b34f15d08..cd233de215 100644
--- a/tests/grid/grid_in_comsol_mphtxt_01.cc
+++ b/tests/grid/grid_in_comsol_mphtxt_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_comsol_mphtxt_02.cc b/tests/grid/grid_in_comsol_mphtxt_02.cc
index aeed396efb..d84799bb13 100644
--- a/tests/grid/grid_in_comsol_mphtxt_02.cc
+++ b/tests/grid/grid_in_comsol_mphtxt_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_exodusii.cc b/tests/grid/grid_in_exodusii.cc
index c1b291848f..e0da002bcf 100644
--- a/tests/grid/grid_in_exodusii.cc
+++ b/tests/grid/grid_in_exodusii.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_gmsh_01.cc b/tests/grid/grid_in_gmsh_01.cc
index 9b8d7d3809..890f53bd5c 100644
--- a/tests/grid/grid_in_gmsh_01.cc
+++ b/tests/grid/grid_in_gmsh_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_gmsh_01_v4.cc b/tests/grid/grid_in_gmsh_01_v4.cc
index c23594d8dd..391f6fff88 100644
--- a/tests/grid/grid_in_gmsh_01_v4.cc
+++ b/tests/grid/grid_in_gmsh_01_v4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_gmsh_01_v41.cc b/tests/grid/grid_in_gmsh_01_v41.cc
index 3637be786f..d3460f39ec 100644
--- a/tests/grid/grid_in_gmsh_01_v41.cc
+++ b/tests/grid/grid_in_gmsh_01_v41.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_gmsh_02.cc b/tests/grid/grid_in_gmsh_02.cc
index 5908956fdf..32fd277ac1 100644
--- a/tests/grid/grid_in_gmsh_02.cc
+++ b/tests/grid/grid_in_gmsh_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_in_gmsh_03.cc b/tests/grid/grid_in_gmsh_03.cc
index efadf7b1e5..ad4f514103 100644
--- a/tests/grid/grid_in_gmsh_03.cc
+++ b/tests/grid/grid_in_gmsh_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_invert.cc b/tests/grid/grid_invert.cc
index e60ccb8b96..139d7a5edf 100644
--- a/tests/grid/grid_invert.cc
+++ b/tests/grid/grid_invert.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2020 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_invert_02.cc b/tests/grid/grid_invert_02.cc
index bbc496707a..846c6edbcb 100644
--- a/tests/grid/grid_invert_02.cc
+++ b/tests/grid/grid_invert_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2022 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_out_vtk_02.cc b/tests/grid/grid_out_vtk_02.cc
index 03f663dfd7..82f8cb8a76 100644
--- a/tests/grid/grid_out_vtk_02.cc
+++ b/tests/grid/grid_out_vtk_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_test.cc b/tests/grid/grid_test.cc
index acacf358f0..4304f69aa5 100644
--- a/tests/grid/grid_test.cc
+++ b/tests/grid/grid_test.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools.cc b/tests/grid/grid_tools.cc
index 437083b5bd..872c8144c4 100644
--- a/tests/grid/grid_tools.cc
+++ b/tests/grid/grid_tools.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_05.cc b/tests/grid/grid_tools_05.cc
index 881841f05c..a80456211e 100644
--- a/tests/grid/grid_tools_05.cc
+++ b/tests/grid/grid_tools_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_06.cc b/tests/grid/grid_tools_06.cc
index 68e600490b..b3c26d250b 100644
--- a/tests/grid/grid_tools_06.cc
+++ b/tests/grid/grid_tools_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_07.cc b/tests/grid/grid_tools_07.cc
index 1dbd46e21e..918e48a7bd 100644
--- a/tests/grid/grid_tools_07.cc
+++ b/tests/grid/grid_tools_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_active_cell_layer_within_distance_01.cc b/tests/grid/grid_tools_active_cell_layer_within_distance_01.cc
index a1d5ace326..fe966b8f1c 100644
--- a/tests/grid/grid_tools_active_cell_layer_within_distance_01.cc
+++ b/tests/grid/grid_tools_active_cell_layer_within_distance_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_active_cell_layer_within_distance_02.cc b/tests/grid/grid_tools_active_cell_layer_within_distance_02.cc
index 62d99076fe..7c34e33f44 100644
--- a/tests/grid/grid_tools_active_cell_layer_within_distance_02.cc
+++ b/tests/grid/grid_tools_active_cell_layer_within_distance_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_aspect_ratio.cc b/tests/grid/grid_tools_aspect_ratio.cc
index d83d50482c..77f42283ee 100644
--- a/tests/grid/grid_tools_aspect_ratio.cc
+++ b/tests/grid/grid_tools_aspect_ratio.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_halo_layer_01.cc b/tests/grid/grid_tools_halo_layer_01.cc
index 3ffa68655c..9293eed010 100644
--- a/tests/grid/grid_tools_halo_layer_01.cc
+++ b/tests/grid/grid_tools_halo_layer_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_halo_layer_02.cc b/tests/grid/grid_tools_halo_layer_02.cc
index f4a3891cc3..9111d5fded 100644
--- a/tests/grid/grid_tools_halo_layer_02.cc
+++ b/tests/grid/grid_tools_halo_layer_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_halo_layer_03.cc b/tests/grid/grid_tools_halo_layer_03.cc
index 276c6897da..84d29c431e 100644
--- a/tests/grid/grid_tools_halo_layer_03.cc
+++ b/tests/grid/grid_tools_halo_layer_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_halo_layer_04.cc b/tests/grid/grid_tools_halo_layer_04.cc
index 023956e817..2f575e10b4 100644
--- a/tests/grid/grid_tools_halo_layer_04.cc
+++ b/tests/grid/grid_tools_halo_layer_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_halo_layer_05.cc b/tests/grid/grid_tools_halo_layer_05.cc
index a571862012..2350642479 100644
--- a/tests/grid/grid_tools_halo_layer_05.cc
+++ b/tests/grid/grid_tools_halo_layer_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_regularize_02.cc b/tests/grid/grid_tools_regularize_02.cc
index 632356139a..5f54700c4d 100644
--- a/tests/grid/grid_tools_regularize_02.cc
+++ b/tests/grid/grid_tools_regularize_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2018 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/grid_tools_transform_01.cc b/tests/grid/grid_tools_transform_01.cc
index 07c2642e5d..f6cbf4901e 100644
--- a/tests/grid/grid_tools_transform_01.cc
+++ b/tests/grid/grid_tools_transform_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2023 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/is_artificial_on_level.cc b/tests/grid/is_artificial_on_level.cc
index ed217191a4..a863f211fc 100644
--- a/tests/grid/is_artificial_on_level.cc
+++ b/tests/grid/is_artificial_on_level.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/line_coarsening_3d.cc b/tests/grid/line_coarsening_3d.cc
index 1ef16db813..a3f2109dda 100644
--- a/tests/grid/line_coarsening_3d.cc
+++ b/tests/grid/line_coarsening_3d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/measure_et_al.cc b/tests/grid/measure_et_al.cc
index 2bdcacc216..9afae0d8b0 100644
--- a/tests/grid/measure_et_al.cc
+++ b/tests/grid/measure_et_al.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/measure_et_al_02.cc b/tests/grid/measure_et_al_02.cc
index 0ddaf8599b..a4bf8bfb63 100644
--- a/tests/grid/measure_et_al_02.cc
+++ b/tests/grid/measure_et_al_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2018 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/measure_of_3d_face_01.cc b/tests/grid/measure_of_3d_face_01.cc
index 293b40f88b..bc7012473b 100644
--- a/tests/grid/measure_of_3d_face_01.cc
+++ b/tests/grid/measure_of_3d_face_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/merge_triangulations_01.cc b/tests/grid/merge_triangulations_01.cc
index 1f4a2b894a..f7fdcdb02c 100644
--- a/tests/grid/merge_triangulations_01.cc
+++ b/tests/grid/merge_triangulations_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2018 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/merge_triangulations_04.cc b/tests/grid/merge_triangulations_04.cc
index 59be64f491..3156c44275 100644
--- a/tests/grid/merge_triangulations_04.cc
+++ b/tests/grid/merge_triangulations_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/merge_triangulations_10.cc b/tests/grid/merge_triangulations_10.cc
index 299c6a92cc..8e97eab00d 100644
--- a/tests/grid/merge_triangulations_10.cc
+++ b/tests/grid/merge_triangulations_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d.h b/tests/grid/mesh_3d.h
index ec089a175c..abb27579a7 100644
--- a/tests/grid/mesh_3d.h
+++ b/tests/grid/mesh_3d.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_1.cc b/tests/grid/mesh_3d_1.cc
index 47ee87531e..14c8a8ca11 100644
--- a/tests/grid/mesh_3d_1.cc
+++ b/tests/grid/mesh_3d_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_10.cc b/tests/grid/mesh_3d_10.cc
index cb12fbce89..950536e435 100644
--- a/tests/grid/mesh_3d_10.cc
+++ b/tests/grid/mesh_3d_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_11.cc b/tests/grid/mesh_3d_11.cc
index 36335a844f..eace87bd49 100644
--- a/tests/grid/mesh_3d_11.cc
+++ b/tests/grid/mesh_3d_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_12.cc b/tests/grid/mesh_3d_12.cc
index 427f799d6b..2b04a1f0e7 100644
--- a/tests/grid/mesh_3d_12.cc
+++ b/tests/grid/mesh_3d_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_13.cc b/tests/grid/mesh_3d_13.cc
index e11e636997..d080a3e947 100644
--- a/tests/grid/mesh_3d_13.cc
+++ b/tests/grid/mesh_3d_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_14.cc b/tests/grid/mesh_3d_14.cc
index 2cc5b9c9e4..61fba03893 100644
--- a/tests/grid/mesh_3d_14.cc
+++ b/tests/grid/mesh_3d_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_15.cc b/tests/grid/mesh_3d_15.cc
index 86f6316838..3b65beb00a 100644
--- a/tests/grid/mesh_3d_15.cc
+++ b/tests/grid/mesh_3d_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_16.cc b/tests/grid/mesh_3d_16.cc
index c238dde5e7..082b74b422 100644
--- a/tests/grid/mesh_3d_16.cc
+++ b/tests/grid/mesh_3d_16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_17.cc b/tests/grid/mesh_3d_17.cc
index 6dbbb8afd0..959018e3e7 100644
--- a/tests/grid/mesh_3d_17.cc
+++ b/tests/grid/mesh_3d_17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_2.cc b/tests/grid/mesh_3d_2.cc
index d9a5eee45e..1099968be1 100644
--- a/tests/grid/mesh_3d_2.cc
+++ b/tests/grid/mesh_3d_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_20.cc b/tests/grid/mesh_3d_20.cc
index c148938c4c..bf4ac5b2dd 100644
--- a/tests/grid/mesh_3d_20.cc
+++ b/tests/grid/mesh_3d_20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_21.cc b/tests/grid/mesh_3d_21.cc
index 7c9b27be8e..948104c082 100644
--- a/tests/grid/mesh_3d_21.cc
+++ b/tests/grid/mesh_3d_21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_3.cc b/tests/grid/mesh_3d_3.cc
index c70c5c26a6..9721b8d374 100644
--- a/tests/grid/mesh_3d_3.cc
+++ b/tests/grid/mesh_3d_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_4.cc b/tests/grid/mesh_3d_4.cc
index ee24e105e8..9109fbae27 100644
--- a/tests/grid/mesh_3d_4.cc
+++ b/tests/grid/mesh_3d_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_5.cc b/tests/grid/mesh_3d_5.cc
index 9605fc0439..b585330486 100644
--- a/tests/grid/mesh_3d_5.cc
+++ b/tests/grid/mesh_3d_5.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_6.cc b/tests/grid/mesh_3d_6.cc
index b565ab6e4a..a354ce0f6d 100644
--- a/tests/grid/mesh_3d_6.cc
+++ b/tests/grid/mesh_3d_6.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_7.cc b/tests/grid/mesh_3d_7.cc
index 13baa9e4e6..3e5c9af280 100644
--- a/tests/grid/mesh_3d_7.cc
+++ b/tests/grid/mesh_3d_7.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_8.cc b/tests/grid/mesh_3d_8.cc
index 6d7c497886..91392811eb 100644
--- a/tests/grid/mesh_3d_8.cc
+++ b/tests/grid/mesh_3d_8.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_3d_9.cc b/tests/grid/mesh_3d_9.cc
index 15fce9ea98..8d7706f47c 100644
--- a/tests/grid/mesh_3d_9.cc
+++ b/tests/grid/mesh_3d_9.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_smoothing_02.cc b/tests/grid/mesh_smoothing_02.cc
index df926e1b4a..25efd5f96e 100644
--- a/tests/grid/mesh_smoothing_02.cc
+++ b/tests/grid/mesh_smoothing_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/mesh_smoothing_03.cc b/tests/grid/mesh_smoothing_03.cc
index 3d0b14851e..def9f1dc40 100644
--- a/tests/grid/mesh_smoothing_03.cc
+++ b/tests/grid/mesh_smoothing_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/move_constructor.cc b/tests/grid/move_constructor.cc
index 23e2ad920d..df45e66c82 100644
--- a/tests/grid/move_constructor.cc
+++ b/tests/grid/move_constructor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/normal_vector_01.cc b/tests/grid/normal_vector_01.cc
index 2ef66801a3..d85b36e80e 100644
--- a/tests/grid/normal_vector_01.cc
+++ b/tests/grid/normal_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/normal_vector_01_2d.cc b/tests/grid/normal_vector_01_2d.cc
index d28afcdc9d..bc4105f290 100644
--- a/tests/grid/normal_vector_01_2d.cc
+++ b/tests/grid/normal_vector_01_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/normal_vector_03.cc b/tests/grid/normal_vector_03.cc
index 0c34554f64..a830f603bf 100644
--- a/tests/grid/normal_vector_03.cc
+++ b/tests/grid/normal_vector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/normal_vector_03_2d.cc b/tests/grid/normal_vector_03_2d.cc
index accc1b9b69..6b23b4b364 100644
--- a/tests/grid/normal_vector_03_2d.cc
+++ b/tests/grid/normal_vector_03_2d.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/normals_at_vertices_01.cc b/tests/grid/normals_at_vertices_01.cc
index 3c94f08c98..ba099142d5 100644
--- a/tests/grid/normals_at_vertices_01.cc
+++ b/tests/grid/normals_at_vertices_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/number_cache_02.cc b/tests/grid/number_cache_02.cc
index 2b14b8e2ca..86c09b2f72 100644
--- a/tests/grid/number_cache_02.cc
+++ b/tests/grid/number_cache_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2018 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/reference_cell_type_01.cc b/tests/grid/reference_cell_type_01.cc
index 4d1202fce7..1545ce4277 100644
--- a/tests/grid/reference_cell_type_01.cc
+++ b/tests/grid/reference_cell_type_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/reference_cell_type_02.cc b/tests/grid/reference_cell_type_02.cc
index a42ba2ab03..2ecfc26eb9 100644
--- a/tests/grid/reference_cell_type_02.cc
+++ b/tests/grid/reference_cell_type_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/reference_cell_type_02_midpoint.cc b/tests/grid/reference_cell_type_02_midpoint.cc
index 30903182fb..2dd702c8cb 100644
--- a/tests/grid/reference_cell_type_02_midpoint.cc
+++ b/tests/grid/reference_cell_type_02_midpoint.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/reference_cell_type_02_q.cc b/tests/grid/reference_cell_type_02_q.cc
index 513dbbb926..25218f121b 100644
--- a/tests/grid/reference_cell_type_02_q.cc
+++ b/tests/grid/reference_cell_type_02_q.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/reference_cell_type_03.cc b/tests/grid/reference_cell_type_03.cc
index 2f21e5a00e..ea17b52f52 100644
--- a/tests/grid/reference_cell_type_03.cc
+++ b/tests/grid/reference_cell_type_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/reference_cell_type_03_midpoint.cc b/tests/grid/reference_cell_type_03_midpoint.cc
index 12cff7df81..c9d35b10a4 100644
--- a/tests/grid/reference_cell_type_03_midpoint.cc
+++ b/tests/grid/reference_cell_type_03_midpoint.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/reference_cell_type_03_q.cc b/tests/grid/reference_cell_type_03_q.cc
index 3a49502afc..0c76466da8 100644
--- a/tests/grid/reference_cell_type_03_q.cc
+++ b/tests/grid/reference_cell_type_03_q.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/reference_cell_type_04.cc b/tests/grid/reference_cell_type_04.cc
index 302cba4c5c..60d65136db 100644
--- a/tests/grid/reference_cell_type_04.cc
+++ b/tests/grid/reference_cell_type_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/reference_cell_type_05.cc b/tests/grid/reference_cell_type_05.cc
index 63577036a9..f3e61b597f 100644
--- a/tests/grid/reference_cell_type_05.cc
+++ b/tests/grid/reference_cell_type_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/refine_and_coarsen_fixed_fraction_03.cc b/tests/grid/refine_and_coarsen_fixed_fraction_03.cc
index a6240e6ddc..67e1e3aa0e 100644
--- a/tests/grid/refine_and_coarsen_fixed_fraction_03.cc
+++ b/tests/grid/refine_and_coarsen_fixed_fraction_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/refine_and_coarsen_fixed_fraction_04.cc b/tests/grid/refine_and_coarsen_fixed_fraction_04.cc
index f074d892aa..d95ce6039c 100644
--- a/tests/grid/refine_and_coarsen_fixed_fraction_04.cc
+++ b/tests/grid/refine_and_coarsen_fixed_fraction_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/refine_and_coarsen_fixed_number_03.cc b/tests/grid/refine_and_coarsen_fixed_number_03.cc
index aa5d8908cd..6d9c9445ba 100644
--- a/tests/grid/refine_and_coarsen_fixed_number_03.cc
+++ b/tests/grid/refine_and_coarsen_fixed_number_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/refine_boundary_domain.cc b/tests/grid/refine_boundary_domain.cc
index abcbc3afd8..eff9e7db4f 100644
--- a/tests/grid/refine_boundary_domain.cc
+++ b/tests/grid/refine_boundary_domain.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/refinement_listener_02.cc b/tests/grid/refinement_listener_02.cc
index 584ca33d32..4c5e25c505 100644
--- a/tests/grid/refinement_listener_02.cc
+++ b/tests/grid/refinement_listener_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/refinement_listener_03.cc b/tests/grid/refinement_listener_03.cc
index e619cad632..2051d1fdc7 100644
--- a/tests/grid/refinement_listener_03.cc
+++ b/tests/grid/refinement_listener_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/save_load_01.cc b/tests/grid/save_load_01.cc
index eea7575b21..c3fb1b99c4 100644
--- a/tests/grid/save_load_01.cc
+++ b/tests/grid/save_load_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/serialization_01.cc b/tests/grid/serialization_01.cc
index aa0c7a951d..827752f086 100644
--- a/tests/grid/serialization_01.cc
+++ b/tests/grid/serialization_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2023 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/subcelldata.cc b/tests/grid/subcelldata.cc
index 5c2869f29e..7e9dc8624c 100644
--- a/tests/grid/subcelldata.cc
+++ b/tests/grid/subcelldata.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/subdomain_ids.cc b/tests/grid/subdomain_ids.cc
index ab8a57dac8..2605e8a48f 100644
--- a/tests/grid/subdomain_ids.cc
+++ b/tests/grid/subdomain_ids.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2018 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/grid/tests.h b/tests/grid/tests.h
index a138f5fd3c..da87d02c4f 100644
--- a/tests/grid/tests.h
+++ b/tests/grid/tests.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/compare_hp_vs_nonhp_01.cc b/tests/hp/compare_hp_vs_nonhp_01.cc
index 09c93cf2d7..29ca30f323 100644
--- a/tests/hp/compare_hp_vs_nonhp_01.cc
+++ b/tests/hp/compare_hp_vs_nonhp_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/crash_06.cc b/tests/hp/crash_06.cc
index 5016486da7..5276fcf5fa 100644
--- a/tests/hp/crash_06.cc
+++ b/tests/hp/crash_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/crash_17.cc b/tests/hp/crash_17.cc
index 639b880cd7..7e88413314 100644
--- a/tests/hp/crash_17.cc
+++ b/tests/hp/crash_17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/crash_18.cc b/tests/hp/crash_18.cc
index 8b10cf8b40..bd9089b0d7 100644
--- a/tests/hp/crash_18.cc
+++ b/tests/hp/crash_18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/crash_19.cc b/tests/hp/crash_19.cc
index 2a3c5a691b..acf4041a6e 100644
--- a/tests/hp/crash_19.cc
+++ b/tests/hp/crash_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/crash_22.cc b/tests/hp/crash_22.cc
index 79f5a83b53..cc994de565 100644
--- a/tests/hp/crash_22.cc
+++ b/tests/hp/crash_22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/distribute_dofs_linear_time.cc b/tests/hp/distribute_dofs_linear_time.cc
index 7ebae4183b..16061e66c8 100644
--- a/tests/hp/distribute_dofs_linear_time.cc
+++ b/tests/hp/distribute_dofs_linear_time.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/dominated_future_fe_on_children_01.cc b/tests/hp/dominated_future_fe_on_children_01.cc
index e1ba17240a..8d08f95750 100644
--- a/tests/hp/dominated_future_fe_on_children_01.cc
+++ b/tests/hp/dominated_future_fe_on_children_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/fe_nothing_18.cc b/tests/hp/fe_nothing_18.cc
index 2c3c897277..7ce16aff05 100644
--- a/tests/hp/fe_nothing_18.cc
+++ b/tests/hp/fe_nothing_18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/fe_nothing_dominates.h b/tests/hp/fe_nothing_dominates.h
index ea2c7bdaf8..ed3a751dc8 100644
--- a/tests/hp/fe_nothing_dominates.h
+++ b/tests/hp/fe_nothing_dominates.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/field_transfer_02.cc b/tests/hp/field_transfer_02.cc
index 605d6b4d74..5a315b7b83 100644
--- a/tests/hp/field_transfer_02.cc
+++ b/tests/hp/field_transfer_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/field_transfer_04.cc b/tests/hp/field_transfer_04.cc
index 47ef6e76e9..db77f2c86c 100644
--- a/tests/hp/field_transfer_04.cc
+++ b/tests/hp/field_transfer_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/flux_sparsity.cc b/tests/hp/flux_sparsity.cc
index a21444ce54..a7316bbf2a 100644
--- a/tests/hp/flux_sparsity.cc
+++ b/tests/hp/flux_sparsity.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/flux_sparsity_02.cc b/tests/hp/flux_sparsity_02.cc
index 9c02e46cee..6e0807ed8e 100644
--- a/tests/hp/flux_sparsity_02.cc
+++ b/tests/hp/flux_sparsity_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/flux_sparsity_03.cc b/tests/hp/flux_sparsity_03.cc
index 73e3028448..cf91b23094 100644
--- a/tests/hp/flux_sparsity_03.cc
+++ b/tests/hp/flux_sparsity_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/hp_constraints_common.h b/tests/hp/hp_constraints_common.h
index 49bf19cfc3..977d32d16f 100644
--- a/tests/hp/hp_constraints_common.h
+++ b/tests/hp/hp_constraints_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2021 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/hp_constraints_common_no_support.h b/tests/hp/hp_constraints_common_no_support.h
index 497cbf9147..910887f493 100644
--- a/tests/hp/hp_constraints_common_no_support.h
+++ b/tests/hp/hp_constraints_common_no_support.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2021 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/hp_constraints_neither_dominate_01.cc b/tests/hp/hp_constraints_neither_dominate_01.cc
index cdb14c224b..604e9c4d31 100644
--- a/tests/hp/hp_constraints_neither_dominate_01.cc
+++ b/tests/hp/hp_constraints_neither_dominate_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/hp_constraints_neither_dominate_02.cc b/tests/hp/hp_constraints_neither_dominate_02.cc
index 3dece9f0db..a4b8adcf14 100644
--- a/tests/hp/hp_constraints_neither_dominate_02.cc
+++ b/tests/hp/hp_constraints_neither_dominate_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/hp_hanging_nodes_01.cc b/tests/hp/hp_hanging_nodes_01.cc
index 22229be1bf..b51a6003ca 100644
--- a/tests/hp/hp_hanging_nodes_01.cc
+++ b/tests/hp/hp_hanging_nodes_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1999 - 2020 by the deal.II authors
+// Copyright (C) 1999 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/hp_q_hierarchical_constraints.cc b/tests/hp/hp_q_hierarchical_constraints.cc
index d55f10b7f2..1beb01ed8b 100644
--- a/tests/hp/hp_q_hierarchical_constraints.cc
+++ b/tests/hp/hp_q_hierarchical_constraints.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/interpolate_nothing_02.cc b/tests/hp/interpolate_nothing_02.cc
index 2ff9f6021e..8ac8cb7ce1 100644
--- a/tests/hp/interpolate_nothing_02.cc
+++ b/tests/hp/interpolate_nothing_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/laplace.h b/tests/hp/laplace.h
index ba62bae0da..e8d14c6422 100644
--- a/tests/hp/laplace.h
+++ b/tests/hp/laplace.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/matrices.cc b/tests/hp/matrices.cc
index 8218bb7901..d61decc554 100644
--- a/tests/hp/matrices.cc
+++ b/tests/hp/matrices.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/matrices_hp.cc b/tests/hp/matrices_hp.cc
index 32fef6e664..18ecea840f 100644
--- a/tests/hp/matrices_hp.cc
+++ b/tests/hp/matrices_hp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/solution_transfer_03.cc b/tests/hp/solution_transfer_03.cc
index d4e94555b4..f6ff0ab6c1 100644
--- a/tests/hp/solution_transfer_03.cc
+++ b/tests/hp/solution_transfer_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2023 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/step-11.cc b/tests/hp/step-11.cc
index 34c4a41181..d2b0420a54 100644
--- a/tests/hp/step-11.cc
+++ b/tests/hp/step-11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/step-12.cc b/tests/hp/step-12.cc
index 9a0a0972e0..b65dcd06d0 100644
--- a/tests/hp/step-12.cc
+++ b/tests/hp/step-12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/step-13.cc b/tests/hp/step-13.cc
index f140b9c734..0e2bd657d9 100644
--- a/tests/hp/step-13.cc
+++ b/tests/hp/step-13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/step-4.cc b/tests/hp/step-4.cc
index 4cae73de83..497904d86f 100644
--- a/tests/hp/step-4.cc
+++ b/tests/hp/step-4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/step-5.cc b/tests/hp/step-5.cc
index 8de58db7fc..4f0b9c39e7 100644
--- a/tests/hp/step-5.cc
+++ b/tests/hp/step-5.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/step-6.cc b/tests/hp/step-6.cc
index 559639142f..3b51e38fcd 100644
--- a/tests/hp/step-6.cc
+++ b/tests/hp/step-6.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/step-7.cc b/tests/hp/step-7.cc
index bcc0df0047..bd12212d99 100644
--- a/tests/hp/step-7.cc
+++ b/tests/hp/step-7.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/hp/step-8.cc b/tests/hp/step-8.cc
index a9fa3e0265..4ec4f017e7 100644
--- a/tests/hp/step-8.cc
+++ b/tests/hp/step-8.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/advection_01.cc b/tests/integrators/advection_01.cc
index add2bb55c1..5b172130d2 100644
--- a/tests/integrators/advection_01.cc
+++ b/tests/integrators/advection_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_matrix_01.cc b/tests/integrators/assembler_simple_matrix_01.cc
index 874a90b872..dd82d211a8 100644
--- a/tests/integrators/assembler_simple_matrix_01.cc
+++ b/tests/integrators/assembler_simple_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_matrix_01m.cc b/tests/integrators/assembler_simple_matrix_01m.cc
index fca631c090..017275a727 100644
--- a/tests/integrators/assembler_simple_matrix_01m.cc
+++ b/tests/integrators/assembler_simple_matrix_01m.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_matrix_02.cc b/tests/integrators/assembler_simple_matrix_02.cc
index 86516cce0e..b5eb2ca9a8 100644
--- a/tests/integrators/assembler_simple_matrix_02.cc
+++ b/tests/integrators/assembler_simple_matrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_matrix_02m.cc b/tests/integrators/assembler_simple_matrix_02m.cc
index f815a2422e..c2593a9e24 100644
--- a/tests/integrators/assembler_simple_matrix_02m.cc
+++ b/tests/integrators/assembler_simple_matrix_02m.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_matrix_03.cc b/tests/integrators/assembler_simple_matrix_03.cc
index c8bd42be62..061281ed9a 100644
--- a/tests/integrators/assembler_simple_matrix_03.cc
+++ b/tests/integrators/assembler_simple_matrix_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_matrix_03m.cc b/tests/integrators/assembler_simple_matrix_03m.cc
index c38b62f73c..7b0d3f006e 100644
--- a/tests/integrators/assembler_simple_matrix_03m.cc
+++ b/tests/integrators/assembler_simple_matrix_03m.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_matrix_03tri.cc b/tests/integrators/assembler_simple_matrix_03tri.cc
index 9308cb056e..26ac86cee3 100644
--- a/tests/integrators/assembler_simple_matrix_03tri.cc
+++ b/tests/integrators/assembler_simple_matrix_03tri.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_matrix_04.cc b/tests/integrators/assembler_simple_matrix_04.cc
index ba1f2e64e0..d52a39c5db 100644
--- a/tests/integrators/assembler_simple_matrix_04.cc
+++ b/tests/integrators/assembler_simple_matrix_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_mgmatrix_01.cc b/tests/integrators/assembler_simple_mgmatrix_01.cc
index 8580689d54..03bb3c0027 100644
--- a/tests/integrators/assembler_simple_mgmatrix_01.cc
+++ b/tests/integrators/assembler_simple_mgmatrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_mgmatrix_02.cc b/tests/integrators/assembler_simple_mgmatrix_02.cc
index b8afd48c14..bc83bafac7 100644
--- a/tests/integrators/assembler_simple_mgmatrix_02.cc
+++ b/tests/integrators/assembler_simple_mgmatrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_mgmatrix_03.cc b/tests/integrators/assembler_simple_mgmatrix_03.cc
index d71c7b4ecd..7090be2d62 100644
--- a/tests/integrators/assembler_simple_mgmatrix_03.cc
+++ b/tests/integrators/assembler_simple_mgmatrix_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_mgmatrix_04.cc b/tests/integrators/assembler_simple_mgmatrix_04.cc
index 35057b43af..1a15f9ab93 100644
--- a/tests/integrators/assembler_simple_mgmatrix_04.cc
+++ b/tests/integrators/assembler_simple_mgmatrix_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2021 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/assembler_simple_system_inhom_01.cc b/tests/integrators/assembler_simple_system_inhom_01.cc
index c198833783..92f59fdd3e 100644
--- a/tests/integrators/assembler_simple_system_inhom_01.cc
+++ b/tests/integrators/assembler_simple_system_inhom_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/cells_and_faces_01.cc b/tests/integrators/cells_and_faces_01.cc
index cabe5aac7b..eaf3d46b86 100644
--- a/tests/integrators/cells_and_faces_01.cc
+++ b/tests/integrators/cells_and_faces_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/cochain_01.cc b/tests/integrators/cochain_01.cc
index b357991ed8..a713e3a45d 100644
--- a/tests/integrators/cochain_01.cc
+++ b/tests/integrators/cochain_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/divergence_01.cc b/tests/integrators/divergence_01.cc
index ff6f581512..528d85f4ee 100644
--- a/tests/integrators/divergence_01.cc
+++ b/tests/integrators/divergence_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/elasticity_01.cc b/tests/integrators/elasticity_01.cc
index b29c6b7e9b..32006b6f0f 100644
--- a/tests/integrators/elasticity_01.cc
+++ b/tests/integrators/elasticity_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/elasticity_02.cc b/tests/integrators/elasticity_02.cc
index 647fead845..d1c0591eee 100644
--- a/tests/integrators/elasticity_02.cc
+++ b/tests/integrators/elasticity_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/functional_01.cc b/tests/integrators/functional_01.cc
index e8927a76d3..e75c96bbbb 100644
--- a/tests/integrators/functional_01.cc
+++ b/tests/integrators/functional_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/grad_div_01.cc b/tests/integrators/grad_div_01.cc
index f9f04de5c5..71d4afc2fd 100644
--- a/tests/integrators/grad_div_01.cc
+++ b/tests/integrators/grad_div_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/laplacian_01.cc b/tests/integrators/laplacian_01.cc
index 38c60acfe5..48b579b825 100644
--- a/tests/integrators/laplacian_01.cc
+++ b/tests/integrators/laplacian_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/mesh_worker_01.cc b/tests/integrators/mesh_worker_01.cc
index 925aef0af2..48b37770bc 100644
--- a/tests/integrators/mesh_worker_01.cc
+++ b/tests/integrators/mesh_worker_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/mesh_worker_02.cc b/tests/integrators/mesh_worker_02.cc
index e39324719d..1515dc9f4d 100644
--- a/tests/integrators/mesh_worker_02.cc
+++ b/tests/integrators/mesh_worker_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/mesh_worker_03.cc b/tests/integrators/mesh_worker_03.cc
index c9fda58285..1da2b21db4 100644
--- a/tests/integrators/mesh_worker_03.cc
+++ b/tests/integrators/mesh_worker_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/mesh_worker_1d_dg.cc b/tests/integrators/mesh_worker_1d_dg.cc
index 801745a3fe..cfd9514e55 100644
--- a/tests/integrators/mesh_worker_1d_dg.cc
+++ b/tests/integrators/mesh_worker_1d_dg.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/integrators/mesh_worker_matrix_01.cc b/tests/integrators/mesh_worker_matrix_01.cc
index 09a4ff5ac7..807de86240 100644
--- a/tests/integrators/mesh_worker_matrix_01.cc
+++ b/tests/integrators/mesh_worker_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/block_matrices_01.cc b/tests/lac/block_matrices_01.cc
index 7f78a24bbe..61fa53530d 100644
--- a/tests/lac/block_matrices_01.cc
+++ b/tests/lac/block_matrices_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/block_matrices_02.cc b/tests/lac/block_matrices_02.cc
index 29db84876d..487a5d8db5 100644
--- a/tests/lac/block_matrices_02.cc
+++ b/tests/lac/block_matrices_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/block_matrices_03.cc b/tests/lac/block_matrices_03.cc
index 1132b508b2..3fa0bc58f1 100644
--- a/tests/lac/block_matrices_03.cc
+++ b/tests/lac/block_matrices_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/block_matrices_07.cc b/tests/lac/block_matrices_07.cc
index cf4776998e..1aa42a2f3a 100644
--- a/tests/lac/block_matrices_07.cc
+++ b/tests/lac/block_matrices_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/block_vector.cc b/tests/lac/block_vector.cc
index 3e237d1db6..083c5a2e8f 100644
--- a/tests/lac/block_vector.cc
+++ b/tests/lac/block_vector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/block_vector_copy.cc b/tests/lac/block_vector_copy.cc
index b1e8e6c6c4..63e955dbca 100644
--- a/tests/lac/block_vector_copy.cc
+++ b/tests/lac/block_vector_copy.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2018 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/block_vector_iterator.cc b/tests/lac/block_vector_iterator.cc
index 58e151791f..3647e86b22 100644
--- a/tests/lac/block_vector_iterator.cc
+++ b/tests/lac/block_vector_iterator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/block_vector_vector_assign.cc b/tests/lac/block_vector_vector_assign.cc
index 532d6a84f3..ad949f4ab3 100644
--- a/tests/lac/block_vector_vector_assign.cc
+++ b/tests/lac/block_vector_vector_assign.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/complex_block_vector.cc b/tests/lac/complex_block_vector.cc
index 74327576c6..59537f9492 100644
--- a/tests/lac/complex_block_vector.cc
+++ b/tests/lac/complex_block_vector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/complex_block_vector_iterator.cc b/tests/lac/complex_block_vector_iterator.cc
index df2d35552e..aa89c9ffb5 100644
--- a/tests/lac/complex_block_vector_iterator.cc
+++ b/tests/lac/complex_block_vector_iterator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/complex_block_vector_vector_assign.cc b/tests/lac/complex_block_vector_vector_assign.cc
index 9b14b3babe..216da37844 100644
--- a/tests/lac/complex_block_vector_vector_assign.cc
+++ b/tests/lac/complex_block_vector_vector_assign.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/constraint_matrix_distribute_local_global.cc b/tests/lac/constraint_matrix_distribute_local_global.cc
index f5ebb194a4..7bf8773b76 100644
--- a/tests/lac/constraint_matrix_distribute_local_global.cc
+++ b/tests/lac/constraint_matrix_distribute_local_global.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/constraints_01.cc b/tests/lac/constraints_01.cc
index 4e01699a0d..f628f6a905 100644
--- a/tests/lac/constraints_01.cc
+++ b/tests/lac/constraints_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/constraints_block_01.cc b/tests/lac/constraints_block_01.cc
index ee46003112..663ff910c4 100644
--- a/tests/lac/constraints_block_01.cc
+++ b/tests/lac/constraints_block_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2023 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/constraints_make_consistent_in_parallel_01.cc b/tests/lac/constraints_make_consistent_in_parallel_01.cc
index bc3d231576..69d1136813 100644
--- a/tests/lac/constraints_make_consistent_in_parallel_01.cc
+++ b/tests/lac/constraints_make_consistent_in_parallel_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/constraints_merge_12.cc b/tests/lac/constraints_merge_12.cc
index b5f76aed41..0dc4cb51b4 100644
--- a/tests/lac/constraints_merge_12.cc
+++ b/tests/lac/constraints_merge_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/constraints_move.cc b/tests/lac/constraints_move.cc
index 5407364785..20ec28192b 100644
--- a/tests/lac/constraints_move.cc
+++ b/tests/lac/constraints_move.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/constraints_zero_condense.cc b/tests/lac/constraints_zero_condense.cc
index bc8eac13fd..e0c8a886ab 100644
--- a/tests/lac/constraints_zero_condense.cc
+++ b/tests/lac/constraints_zero_condense.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/diagonal_matrix_02.cc b/tests/lac/diagonal_matrix_02.cc
index 7e3a40a7a4..2e9cca5598 100644
--- a/tests/lac/diagonal_matrix_02.cc
+++ b/tests/lac/diagonal_matrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/distributed_vector_sm.cc b/tests/lac/distributed_vector_sm.cc
index a6300c9e06..ea0d31a501 100644
--- a/tests/lac/distributed_vector_sm.cc
+++ b/tests/lac/distributed_vector_sm.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/gmres_eigenvalues.cc b/tests/lac/gmres_eigenvalues.cc
index 1f129aa996..8d5dc66494 100644
--- a/tests/lac/gmres_eigenvalues.cc
+++ b/tests/lac/gmres_eigenvalues.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2020 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/gmres_reorthogonalize_01.cc b/tests/lac/gmres_reorthogonalize_01.cc
index 4b0349664a..b3c9869e59 100644
--- a/tests/lac/gmres_reorthogonalize_01.cc
+++ b/tests/lac/gmres_reorthogonalize_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/gmres_reorthogonalize_03.cc b/tests/lac/gmres_reorthogonalize_03.cc
index 108bcb89b8..43ab98ffa8 100644
--- a/tests/lac/gmres_reorthogonalize_03.cc
+++ b/tests/lac/gmres_reorthogonalize_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2020 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/inhomogeneous_constraints.cc b/tests/lac/inhomogeneous_constraints.cc
index dea6bddb18..5cd791021d 100644
--- a/tests/lac/inhomogeneous_constraints.cc
+++ b/tests/lac/inhomogeneous_constraints.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2023 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/is_block_matrix.cc b/tests/lac/is_block_matrix.cc
index c654fd0a3b..c85adbb5ba 100644
--- a/tests/lac/is_block_matrix.cc
+++ b/tests/lac/is_block_matrix.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/is_block_vector.cc b/tests/lac/is_block_vector.cc
index 795a40048b..feb561e6b4 100644
--- a/tests/lac/is_block_vector.cc
+++ b/tests/lac/is_block_vector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/la_parallel_vector_add_and_dot_complex.cc b/tests/lac/la_parallel_vector_add_and_dot_complex.cc
index 12cecf0be7..4fe52ea345 100644
--- a/tests/lac/la_parallel_vector_add_and_dot_complex.cc
+++ b/tests/lac/la_parallel_vector_add_and_dot_complex.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2021 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_04.cc b/tests/lac/linear_operator_04.cc
index 31e235a5a8..7880a12653 100644
--- a/tests/lac/linear_operator_04.cc
+++ b/tests/lac/linear_operator_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_08.cc b/tests/lac/linear_operator_08.cc
index fac6a155a1..98b642eec2 100644
--- a/tests/lac/linear_operator_08.cc
+++ b/tests/lac/linear_operator_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_10.cc b/tests/lac/linear_operator_10.cc
index 451395bd13..c5f8840f90 100644
--- a/tests/lac/linear_operator_10.cc
+++ b/tests/lac/linear_operator_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_10a.cc b/tests/lac/linear_operator_10a.cc
index 36684a6eb8..153e64eee5 100644
--- a/tests/lac/linear_operator_10a.cc
+++ b/tests/lac/linear_operator_10a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_11.cc b/tests/lac/linear_operator_11.cc
index c33806c983..1ae883d40c 100644
--- a/tests/lac/linear_operator_11.cc
+++ b/tests/lac/linear_operator_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_12.cc b/tests/lac/linear_operator_12.cc
index 8069085d3f..367c384715 100644
--- a/tests/lac/linear_operator_12.cc
+++ b/tests/lac/linear_operator_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_12a.cc b/tests/lac/linear_operator_12a.cc
index 4fc27bbff7..d9a38c275a 100644
--- a/tests/lac/linear_operator_12a.cc
+++ b/tests/lac/linear_operator_12a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_13.cc b/tests/lac/linear_operator_13.cc
index 79240cc979..00bc3595c0 100644
--- a/tests/lac/linear_operator_13.cc
+++ b/tests/lac/linear_operator_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_14.cc b/tests/lac/linear_operator_14.cc
index e7715096f9..bc918f97b5 100644
--- a/tests/lac/linear_operator_14.cc
+++ b/tests/lac/linear_operator_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/linear_operator_15.cc b/tests/lac/linear_operator_15.cc
index 4a1efe3f55..f495f5c860 100644
--- a/tests/lac/linear_operator_15.cc
+++ b/tests/lac/linear_operator_15.cc
@@ -1,7 +1,7 @@
 
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/packaged_operation_02.cc b/tests/lac/packaged_operation_02.cc
index 65dc3a6fc7..683991f798 100644
--- a/tests/lac/packaged_operation_02.cc
+++ b/tests/lac/packaged_operation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/precondition_chebyshev_07.cc b/tests/lac/precondition_chebyshev_07.cc
index 4533306317..5069ad3072 100644
--- a/tests/lac/precondition_chebyshev_07.cc
+++ b/tests/lac/precondition_chebyshev_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/precondition_relaxation_01.cc b/tests/lac/precondition_relaxation_01.cc
index 3dde26fffe..5320b2c849 100644
--- a/tests/lac/precondition_relaxation_01.cc
+++ b/tests/lac/precondition_relaxation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/qr_10.cc b/tests/lac/qr_10.cc
index 7fc85afe94..6c578218ef 100644
--- a/tests/lac/qr_10.cc
+++ b/tests/lac/qr_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/readwritevector_assignment.cc b/tests/lac/readwritevector_assignment.cc
index d458fbeea9..30002744eb 100644
--- a/tests/lac/readwritevector_assignment.cc
+++ b/tests/lac/readwritevector_assignment.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2018 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/readwritevector_print.cc b/tests/lac/readwritevector_print.cc
index 18799006eb..6ba1a5700a 100644
--- a/tests/lac/readwritevector_print.cc
+++ b/tests/lac/readwritevector_print.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2018 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/schur_complement_01.cc b/tests/lac/schur_complement_01.cc
index 5670580822..53909ff35c 100644
--- a/tests/lac/schur_complement_01.cc
+++ b/tests/lac/schur_complement_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/schur_complement_01_instrumented_vmult.cc b/tests/lac/schur_complement_01_instrumented_vmult.cc
index 19ccfc750a..389086d51d 100644
--- a/tests/lac/schur_complement_01_instrumented_vmult.cc
+++ b/tests/lac/schur_complement_01_instrumented_vmult.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2020 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/schur_complement_03.cc b/tests/lac/schur_complement_03.cc
index 010da52d05..2ce484f20b 100644
--- a/tests/lac/schur_complement_03.cc
+++ b/tests/lac/schur_complement_03.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2008 - 2020 by the deal.II authors
+ * Copyright (C) 2008 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/lac/solver_control_01.cc b/tests/lac/solver_control_01.cc
index 1d89f4060a..91aeb7a268 100644
--- a/tests/lac/solver_control_01.cc
+++ b/tests/lac/solver_control_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_control_02.cc b/tests/lac/solver_control_02.cc
index 85865b6707..546a734d94 100644
--- a/tests/lac/solver_control_02.cc
+++ b/tests/lac/solver_control_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_control_03.cc b/tests/lac/solver_control_03.cc
index 41a3e7c65a..b1b5f02cb7 100644
--- a/tests/lac/solver_control_03.cc
+++ b/tests/lac/solver_control_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_control_04.cc b/tests/lac/solver_control_04.cc
index 95036d0aa8..1ab14f031a 100644
--- a/tests/lac/solver_control_04.cc
+++ b/tests/lac/solver_control_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_memorytest.cc b/tests/lac/solver_memorytest.cc
index f43c64e989..ac090b7399 100644
--- a/tests/lac/solver_memorytest.cc
+++ b/tests/lac/solver_memorytest.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_monitor.cc b/tests/lac/solver_monitor.cc
index e51ffac9cf..e0b1afd6e3 100644
--- a/tests/lac/solver_monitor.cc
+++ b/tests/lac/solver_monitor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_monitor_disconnect.cc b/tests/lac/solver_monitor_disconnect.cc
index 09b1497e80..16f67887ad 100644
--- a/tests/lac/solver_monitor_disconnect.cc
+++ b/tests/lac/solver_monitor_disconnect.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_relaxation_01.cc b/tests/lac/solver_relaxation_01.cc
index 775ecd7431..2b722718ce 100644
--- a/tests/lac/solver_relaxation_01.cc
+++ b/tests/lac/solver_relaxation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_relaxation_02.cc b/tests/lac/solver_relaxation_02.cc
index f8bb32266d..62a3636d09 100644
--- a/tests/lac/solver_relaxation_02.cc
+++ b/tests/lac/solver_relaxation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2020 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_relaxation_03.cc b/tests/lac/solver_relaxation_03.cc
index 2e8d4b11df..84c82ea2dd 100644
--- a/tests/lac/solver_relaxation_03.cc
+++ b/tests/lac/solver_relaxation_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2020 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_relaxation_04.cc b/tests/lac/solver_relaxation_04.cc
index 505383bbde..a1a00f418e 100644
--- a/tests/lac/solver_relaxation_04.cc
+++ b/tests/lac/solver_relaxation_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/solver_signals.cc b/tests/lac/solver_signals.cc
index 3bbc4f1007..6cebdb4794 100644
--- a/tests/lac/solver_signals.cc
+++ b/tests/lac/solver_signals.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_ilu.cc b/tests/lac/sparse_ilu.cc
index f9207b88db..4dde0a00d4 100644
--- a/tests/lac/sparse_ilu.cc
+++ b/tests/lac/sparse_ilu.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2020 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_ilu_t.cc b/tests/lac/sparse_ilu_t.cc
index 833f06a7ff..9aef64d18d 100644
--- a/tests/lac/sparse_ilu_t.cc
+++ b/tests/lac/sparse_ilu_t.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2020 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_matrices.cc b/tests/lac/sparse_matrices.cc
index 701b326cc2..e8937b52d2 100644
--- a/tests/lac/sparse_matrices.cc
+++ b/tests/lac/sparse_matrices.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2020 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_matrix_Tmmult_01.cc b/tests/lac/sparse_matrix_Tmmult_01.cc
index 1ff9206b0c..f81779df3a 100644
--- a/tests/lac/sparse_matrix_Tmmult_01.cc
+++ b/tests/lac/sparse_matrix_Tmmult_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2018 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_matrix_Tmmult_02.cc b/tests/lac/sparse_matrix_Tmmult_02.cc
index 4f140ecc52..25044841fc 100644
--- a/tests/lac/sparse_matrix_Tmmult_02.cc
+++ b/tests/lac/sparse_matrix_Tmmult_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2018 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_matrix_iterator.cc b/tests/lac/sparse_matrix_iterator.cc
index 2120b52325..d3cdd5b1a3 100644
--- a/tests/lac/sparse_matrix_iterator.cc
+++ b/tests/lac/sparse_matrix_iterator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2018 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_matrix_mmult_01.cc b/tests/lac/sparse_matrix_mmult_01.cc
index 13079df684..a9ad479d64 100644
--- a/tests/lac/sparse_matrix_mmult_01.cc
+++ b/tests/lac/sparse_matrix_mmult_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2018 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_matrix_mmult_02.cc b/tests/lac/sparse_matrix_mmult_02.cc
index d0df8feef5..51dbf80740 100644
--- a/tests/lac/sparse_matrix_mmult_02.cc
+++ b/tests/lac/sparse_matrix_mmult_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2018 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_matrix_print.cc b/tests/lac/sparse_matrix_print.cc
index c0085ccf8a..eb443ab8c3 100644
--- a/tests/lac/sparse_matrix_print.cc
+++ b/tests/lac/sparse_matrix_print.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_matrix_tools_01.cc b/tests/lac/sparse_matrix_tools_01.cc
index 7ece239806..70115899c7 100644
--- a/tests/lac/sparse_matrix_tools_01.cc
+++ b/tests/lac/sparse_matrix_tools_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/sparse_mic.cc b/tests/lac/sparse_mic.cc
index 7e8151c2b2..bd63d98abb 100644
--- a/tests/lac/sparse_mic.cc
+++ b/tests/lac/sparse_mic.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2020 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/step-40-linear_operator_01.cc b/tests/lac/step-40-linear_operator_01.cc
index 546967186e..1fe99680b2 100644
--- a/tests/lac/step-40-linear_operator_01.cc
+++ b/tests/lac/step-40-linear_operator_01.cc
@@ -1,7 +1,7 @@
 
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/step-40-linear_operator_02.cc b/tests/lac/step-40-linear_operator_02.cc
index 1c6070ebf2..6bfee71149 100644
--- a/tests/lac/step-40-linear_operator_02.cc
+++ b/tests/lac/step-40-linear_operator_02.cc
@@ -1,7 +1,7 @@
 
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/step-40-linear_operator_03.cc b/tests/lac/step-40-linear_operator_03.cc
index 50c5c7f2e5..2cd87e8996 100644
--- a/tests/lac/step-40-linear_operator_03.cc
+++ b/tests/lac/step-40-linear_operator_03.cc
@@ -2,7 +2,7 @@
 
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/step-40-linear_operator_04.cc b/tests/lac/step-40-linear_operator_04.cc
index 2163a4442e..b628c2b19c 100644
--- a/tests/lac/step-40-linear_operator_04.cc
+++ b/tests/lac/step-40-linear_operator_04.cc
@@ -2,7 +2,7 @@
 
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/step-40-linear_operator_05.cc b/tests/lac/step-40-linear_operator_05.cc
index c6a54735c7..49da12aa39 100644
--- a/tests/lac/step-40-linear_operator_05.cc
+++ b/tests/lac/step-40-linear_operator_05.cc
@@ -2,7 +2,7 @@
 
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/step-40-linear_operator_06.cc b/tests/lac/step-40-linear_operator_06.cc
index 5d5aab3b8e..4210577c32 100644
--- a/tests/lac/step-40-linear_operator_06.cc
+++ b/tests/lac/step-40-linear_operator_06.cc
@@ -2,7 +2,7 @@
 
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/tensor_product_matrix.h b/tests/lac/tensor_product_matrix.h
index d7ca6a091e..39ec012527 100644
--- a/tests/lac/tensor_product_matrix.h
+++ b/tests/lac/tensor_product_matrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/tensor_product_matrix_vectorized_01.cc b/tests/lac/tensor_product_matrix_vectorized_01.cc
index 90248b34c6..93cc2a9923 100644
--- a/tests/lac/tensor_product_matrix_vectorized_01.cc
+++ b/tests/lac/tensor_product_matrix_vectorized_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/tensor_product_matrix_vectorized_02.cc b/tests/lac/tensor_product_matrix_vectorized_02.cc
index 4184f8b6c4..3ba4847629 100644
--- a/tests/lac/tensor_product_matrix_vectorized_02.cc
+++ b/tests/lac/tensor_product_matrix_vectorized_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/tensor_product_matrix_vectorized_03.cc b/tests/lac/tensor_product_matrix_vectorized_03.cc
index 1de91dd068..be04c2702b 100644
--- a/tests/lac/tensor_product_matrix_vectorized_03.cc
+++ b/tests/lac/tensor_product_matrix_vectorized_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/tensor_product_matrix_vectorized_04.cc b/tests/lac/tensor_product_matrix_vectorized_04.cc
index c487d17b6d..a494487a30 100644
--- a/tests/lac/tensor_product_matrix_vectorized_04.cc
+++ b/tests/lac/tensor_product_matrix_vectorized_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/utilities_02.cc b/tests/lac/utilities_02.cc
index 2407f24012..3f972e8712 100644
--- a/tests/lac/utilities_02.cc
+++ b/tests/lac/utilities_02.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2017 - 2022 by the deal.II authors
+ * Copyright (C) 2017 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/lac/utilities_03.cc b/tests/lac/utilities_03.cc
index cfac346abd..cc1ed3ff25 100644
--- a/tests/lac/utilities_03.cc
+++ b/tests/lac/utilities_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/vector_add_and_dot.cc b/tests/lac/vector_add_and_dot.cc
index 2bbd7f5121..fd0d69a994 100644
--- a/tests/lac/vector_add_and_dot.cc
+++ b/tests/lac/vector_add_and_dot.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2021 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/vector_add_and_dot_complex.cc b/tests/lac/vector_add_and_dot_complex.cc
index 56fa3b8795..6e02ebf0f5 100644
--- a/tests/lac/vector_add_and_dot_complex.cc
+++ b/tests/lac/vector_add_and_dot_complex.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2021 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/vector_memory.cc b/tests/lac/vector_memory.cc
index c6ae83b4bc..0996ad4184 100644
--- a/tests/lac/vector_memory.cc
+++ b/tests/lac/vector_memory.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2020 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/vector_memory_01.cc b/tests/lac/vector_memory_01.cc
index a59c49e4ad..c10b8c5e72 100644
--- a/tests/lac/vector_memory_01.cc
+++ b/tests/lac/vector_memory_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2023 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/vector_memory_02.cc b/tests/lac/vector_memory_02.cc
index e894155a44..b92ca8469c 100644
--- a/tests/lac/vector_memory_02.cc
+++ b/tests/lac/vector_memory_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2023 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/vector_reinit_02.cc b/tests/lac/vector_reinit_02.cc
index c7084ce67f..2084687b2a 100644
--- a/tests/lac/vector_reinit_02.cc
+++ b/tests/lac/vector_reinit_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/vector_type_traits_is_serial_01.cc b/tests/lac/vector_type_traits_is_serial_01.cc
index 6b32239a05..47f396bbfd 100644
--- a/tests/lac/vector_type_traits_is_serial_01.cc
+++ b/tests/lac/vector_type_traits_is_serial_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/vector_type_traits_is_serial_02.cc b/tests/lac/vector_type_traits_is_serial_02.cc
index 5533610ad8..4d960e6944 100644
--- a/tests/lac/vector_type_traits_is_serial_02.cc
+++ b/tests/lac/vector_type_traits_is_serial_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lac/vector_type_traits_is_serial_03.cc b/tests/lac/vector_type_traits_is_serial_03.cc
index 8aa413d4d3..e0fa66020a 100644
--- a/tests/lac/vector_type_traits_is_serial_03.cc
+++ b/tests/lac/vector_type_traits_is_serial_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2018 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lapack/full_matrix_14.cc b/tests/lapack/full_matrix_14.cc
index 27f3b7c77f..9bf0ea8928 100644
--- a/tests/lapack/full_matrix_14.cc
+++ b/tests/lapack/full_matrix_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/lapack/solver_cg.cc b/tests/lapack/solver_cg.cc
index d5ab0152f3..3518102a2f 100644
--- a/tests/lapack/solver_cg.cc
+++ b/tests/lapack/solver_cg.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/chart_manifold_10.cc b/tests/manifold/chart_manifold_10.cc
index 2a1731fc20..72c3348ed2 100644
--- a/tests/manifold/chart_manifold_10.cc
+++ b/tests/manifold/chart_manifold_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/elliptical_manifold_01.cc b/tests/manifold/elliptical_manifold_01.cc
index e6a99ac5c5..cc04183ec3 100644
--- a/tests/manifold/elliptical_manifold_01.cc
+++ b/tests/manifold/elliptical_manifold_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/elliptical_manifold_02.cc b/tests/manifold/elliptical_manifold_02.cc
index b9d85b64c6..4ac4263816 100644
--- a/tests/manifold/elliptical_manifold_02.cc
+++ b/tests/manifold/elliptical_manifold_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2019 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/flat_manifold_09.cc b/tests/manifold/flat_manifold_09.cc
index fc8d3f60aa..a420b40e52 100644
--- a/tests/manifold/flat_manifold_09.cc
+++ b/tests/manifold/flat_manifold_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/manifold_id_02.cc b/tests/manifold/manifold_id_02.cc
index d89b979cd5..78be14c034 100644
--- a/tests/manifold/manifold_id_02.cc
+++ b/tests/manifold/manifold_id_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2020 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/manifold_id_03.cc b/tests/manifold/manifold_id_03.cc
index 51ff52050a..7249702a45 100644
--- a/tests/manifold/manifold_id_03.cc
+++ b/tests/manifold/manifold_id_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2020 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/manifold_id_04.cc b/tests/manifold/manifold_id_04.cc
index 49e8612f3b..a00bc9eec2 100644
--- a/tests/manifold/manifold_id_04.cc
+++ b/tests/manifold/manifold_id_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2020 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/manifold_id_08.cc b/tests/manifold/manifold_id_08.cc
index 83ac2c6b84..e2f71521c4 100644
--- a/tests/manifold/manifold_id_08.cc
+++ b/tests/manifold/manifold_id_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/polar_manifold_04.cc b/tests/manifold/polar_manifold_04.cc
index 49df373e1b..d85950b5d7 100644
--- a/tests/manifold/polar_manifold_04.cc
+++ b/tests/manifold/polar_manifold_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2019 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/spherical_manifold_13.cc b/tests/manifold/spherical_manifold_13.cc
index e52cce7d93..4602f22a3c 100644
--- a/tests/manifold/spherical_manifold_13.cc
+++ b/tests/manifold/spherical_manifold_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/transfinite_manifold_07.cc b/tests/manifold/transfinite_manifold_07.cc
index 4834970463..63d026f734 100644
--- a/tests/manifold/transfinite_manifold_07.cc
+++ b/tests/manifold/transfinite_manifold_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/transfinite_manifold_08.cc b/tests/manifold/transfinite_manifold_08.cc
index e4db06b3ef..959bfc6a25 100644
--- a/tests/manifold/transfinite_manifold_08.cc
+++ b/tests/manifold/transfinite_manifold_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/transfinite_manifold_09.cc b/tests/manifold/transfinite_manifold_09.cc
index 4857783be2..bb0b731e7b 100644
--- a/tests/manifold/transfinite_manifold_09.cc
+++ b/tests/manifold/transfinite_manifold_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/transfinite_manifold_10.cc b/tests/manifold/transfinite_manifold_10.cc
index cc892aa05f..da6bf78e06 100644
--- a/tests/manifold/transfinite_manifold_10.cc
+++ b/tests/manifold/transfinite_manifold_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/transfinite_manifold_11.cc b/tests/manifold/transfinite_manifold_11.cc
index 8a87a956d9..3d58cc3fb8 100644
--- a/tests/manifold/transfinite_manifold_11.cc
+++ b/tests/manifold/transfinite_manifold_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/transfinite_manifold_12.cc b/tests/manifold/transfinite_manifold_12.cc
index 33e9abbf21..403548513f 100644
--- a/tests/manifold/transfinite_manifold_12.cc
+++ b/tests/manifold/transfinite_manifold_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/manifold/tria_boundary_id_01.cc b/tests/manifold/tria_boundary_id_01.cc
index 27ffbceee8..20dc3c9fa8 100644
--- a/tests/manifold/tria_boundary_id_01.cc
+++ b/tests/manifold/tria_boundary_id_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/fe_face_values_1d_mapping_cartesian.cc b/tests/mappings/fe_face_values_1d_mapping_cartesian.cc
index ca1177843f..fe2e7a3208 100644
--- a/tests/mappings/fe_face_values_1d_mapping_cartesian.cc
+++ b/tests/mappings/fe_face_values_1d_mapping_cartesian.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/fe_face_values_1d_mapping_q2.cc b/tests/mappings/fe_face_values_1d_mapping_q2.cc
index e55f3fe4ec..ed43e94906 100644
--- a/tests/mappings/fe_face_values_1d_mapping_q2.cc
+++ b/tests/mappings/fe_face_values_1d_mapping_q2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping.cc b/tests/mappings/mapping.cc
index e1660a637b..2fcfc31fde 100644
--- a/tests/mappings/mapping.cc
+++ b/tests/mappings/mapping.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_fe_field_03.cc b/tests/mappings/mapping_fe_field_03.cc
index ab17de8a18..fafcf1876e 100644
--- a/tests/mappings/mapping_fe_field_03.cc
+++ b/tests/mappings/mapping_fe_field_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2020 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_fe_field_06.cc b/tests/mappings/mapping_fe_field_06.cc
index 13e32047df..94cd88fd20 100644
--- a/tests/mappings/mapping_fe_field_06.cc
+++ b/tests/mappings/mapping_fe_field_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_fe_field_08.cc b/tests/mappings/mapping_fe_field_08.cc
index 340d09a4f2..627973be54 100644
--- a/tests/mappings/mapping_fe_field_08.cc
+++ b/tests/mappings/mapping_fe_field_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q1_eulerian.cc b/tests/mappings/mapping_q1_eulerian.cc
index eeb17d45af..4231143192 100644
--- a/tests/mappings/mapping_q1_eulerian.cc
+++ b/tests/mappings/mapping_q1_eulerian.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2018 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q1_eulerian_01.cc b/tests/mappings/mapping_q1_eulerian_01.cc
index 723512f3b3..0a5889b4e9 100644
--- a/tests/mappings/mapping_q1_eulerian_01.cc
+++ b/tests/mappings/mapping_q1_eulerian_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_cache_01.cc b/tests/mappings/mapping_q_cache_01.cc
index 1b0291ed69..b91002fb76 100644
--- a/tests/mappings/mapping_q_cache_01.cc
+++ b/tests/mappings/mapping_q_cache_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_cache_02.cc b/tests/mappings/mapping_q_cache_02.cc
index 03dfd896b5..d4b8e797ac 100644
--- a/tests/mappings/mapping_q_cache_02.cc
+++ b/tests/mappings/mapping_q_cache_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_cache_03.cc b/tests/mappings/mapping_q_cache_03.cc
index ca5ebd8925..cd2e542ba2 100644
--- a/tests/mappings/mapping_q_cache_03.cc
+++ b/tests/mappings/mapping_q_cache_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_cache_05.cc b/tests/mappings/mapping_q_cache_05.cc
index f139b01fde..4449ac9e10 100644
--- a/tests/mappings/mapping_q_cache_05.cc
+++ b/tests/mappings/mapping_q_cache_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_cache_06.cc b/tests/mappings/mapping_q_cache_06.cc
index 565d30bac1..a882fc9213 100644
--- a/tests/mappings/mapping_q_cache_06.cc
+++ b/tests/mappings/mapping_q_cache_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_eulerian.cc b/tests/mappings/mapping_q_eulerian.cc
index 3a1a019aaf..9c13e82ad2 100644
--- a/tests/mappings/mapping_q_eulerian.cc
+++ b/tests/mappings/mapping_q_eulerian.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_eulerian_01.cc b/tests/mappings/mapping_q_eulerian_01.cc
index 7c0de2e18c..17fc7195a0 100644
--- a/tests/mappings/mapping_q_eulerian_01.cc
+++ b/tests/mappings/mapping_q_eulerian_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_eulerian_02.cc b/tests/mappings/mapping_q_eulerian_02.cc
index f216cc97ed..203976bfed 100644
--- a/tests/mappings/mapping_q_eulerian_02.cc
+++ b/tests/mappings/mapping_q_eulerian_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_eulerian_03.cc b/tests/mappings/mapping_q_eulerian_03.cc
index a8f1ada2b3..bd4dcd6eef 100644
--- a/tests/mappings/mapping_q_eulerian_03.cc
+++ b/tests/mappings/mapping_q_eulerian_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_eulerian_07.cc b/tests/mappings/mapping_q_eulerian_07.cc
index fa7e41ea8d..6c241a6ca8 100644
--- a/tests/mappings/mapping_q_eulerian_07.cc
+++ b/tests/mappings/mapping_q_eulerian_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_eulerian_08.cc b/tests/mappings/mapping_q_eulerian_08.cc
index 3acb35c37b..46ad020144 100644
--- a/tests/mappings/mapping_q_eulerian_08.cc
+++ b/tests/mappings/mapping_q_eulerian_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_eulerian_09.cc b/tests/mappings/mapping_q_eulerian_09.cc
index 3d5eb7b498..f83d7b2105 100644
--- a/tests/mappings/mapping_q_eulerian_09.cc
+++ b/tests/mappings/mapping_q_eulerian_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_eulerian_11.cc b/tests/mappings/mapping_q_eulerian_11.cc
index 6cff8c3108..79eae6aa4a 100644
--- a/tests/mappings/mapping_q_eulerian_11.cc
+++ b/tests/mappings/mapping_q_eulerian_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_eulerian_14.cc b/tests/mappings/mapping_q_eulerian_14.cc
index 162be31bc7..c3b6655151 100644
--- a/tests/mappings/mapping_q_eulerian_14.cc
+++ b/tests/mappings/mapping_q_eulerian_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_manifold_01.cc b/tests/mappings/mapping_q_manifold_01.cc
index 3fcbe5e7e3..300512319b 100644
--- a/tests/mappings/mapping_q_manifold_01.cc
+++ b/tests/mappings/mapping_q_manifold_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_mixed_manifolds_01.cc b/tests/mappings/mapping_q_mixed_manifolds_01.cc
index 04900dbec1..ad954e20f7 100644
--- a/tests/mappings/mapping_q_mixed_manifolds_01.cc
+++ b/tests/mappings/mapping_q_mixed_manifolds_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_q_mixed_manifolds_02.cc b/tests/mappings/mapping_q_mixed_manifolds_02.cc
index 080084e712..fc4439c1c4 100644
--- a/tests/mappings/mapping_q_mixed_manifolds_02.cc
+++ b/tests/mappings/mapping_q_mixed_manifolds_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mappings/mapping_real_to_unit_02.cc b/tests/mappings/mapping_real_to_unit_02.cc
index d8ff34c548..21bebfb2c1 100644
--- a/tests/mappings/mapping_real_to_unit_02.cc
+++ b/tests/mappings/mapping_real_to_unit_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2021 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/assemble_matrix_03.cc b/tests/matrix_free/assemble_matrix_03.cc
index 442353a683..d09a472510 100644
--- a/tests/matrix_free/assemble_matrix_03.cc
+++ b/tests/matrix_free/assemble_matrix_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/cell_categorization_02.cc b/tests/matrix_free/cell_categorization_02.cc
index 6b56f8c948..96b181f1c7 100644
--- a/tests/matrix_free/cell_categorization_02.cc
+++ b/tests/matrix_free/cell_categorization_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/compute_diagonal_01.cc b/tests/matrix_free/compute_diagonal_01.cc
index 8bf355dcc0..758982b763 100644
--- a/tests/matrix_free/compute_diagonal_01.cc
+++ b/tests/matrix_free/compute_diagonal_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/compute_diagonal_02.cc b/tests/matrix_free/compute_diagonal_02.cc
index 5b218bf513..07012dcbc8 100644
--- a/tests/matrix_free/compute_diagonal_02.cc
+++ b/tests/matrix_free/compute_diagonal_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/compute_diagonal_03.cc b/tests/matrix_free/compute_diagonal_03.cc
index bb966d9466..2e388ee8aa 100644
--- a/tests/matrix_free/compute_diagonal_03.cc
+++ b/tests/matrix_free/compute_diagonal_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/compute_diagonal_04.cc b/tests/matrix_free/compute_diagonal_04.cc
index cb82cfa56a..355695db33 100644
--- a/tests/matrix_free/compute_diagonal_04.cc
+++ b/tests/matrix_free/compute_diagonal_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/compute_diagonal_05.cc b/tests/matrix_free/compute_diagonal_05.cc
index 1275bf81a5..434760bd81 100644
--- a/tests/matrix_free/compute_diagonal_05.cc
+++ b/tests/matrix_free/compute_diagonal_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/compute_diagonal_06.cc b/tests/matrix_free/compute_diagonal_06.cc
index 83dd50bcb4..7944b2329d 100644
--- a/tests/matrix_free/compute_diagonal_06.cc
+++ b/tests/matrix_free/compute_diagonal_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/compute_diagonal_07.cc b/tests/matrix_free/compute_diagonal_07.cc
index 63f92306ea..960c85b029 100644
--- a/tests/matrix_free/compute_diagonal_07.cc
+++ b/tests/matrix_free/compute_diagonal_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/compute_diagonal_util.h b/tests/matrix_free/compute_diagonal_util.h
index 23099418d0..07f1c8274b 100644
--- a/tests/matrix_free/compute_diagonal_util.h
+++ b/tests/matrix_free/compute_diagonal_util.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/constraint_info_01.cc b/tests/matrix_free/constraint_info_01.cc
index 53a225ae27..615971f597 100644
--- a/tests/matrix_free/constraint_info_01.cc
+++ b/tests/matrix_free/constraint_info_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/copy_feevaluation.cc b/tests/matrix_free/copy_feevaluation.cc
index 0f84ece6d7..35cdc008f2 100644
--- a/tests/matrix_free/copy_feevaluation.cc
+++ b/tests/matrix_free/copy_feevaluation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/dg_pbc_01.cc b/tests/matrix_free/dg_pbc_01.cc
index 629cd28fe3..567f55b193 100644
--- a/tests/matrix_free/dg_pbc_01.cc
+++ b/tests/matrix_free/dg_pbc_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/dof_info_01.cc b/tests/matrix_free/dof_info_01.cc
index dcf673cc86..15aae92e7b 100644
--- a/tests/matrix_free/dof_info_01.cc
+++ b/tests/matrix_free/dof_info_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/dof_info_02.cc b/tests/matrix_free/dof_info_02.cc
index b2325831f7..08474ed524 100644
--- a/tests/matrix_free/dof_info_02.cc
+++ b/tests/matrix_free/dof_info_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/ecl.h b/tests/matrix_free/ecl.h
index 0175a37343..a3adb27e32 100644
--- a/tests/matrix_free/ecl.h
+++ b/tests/matrix_free/ecl.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/ecl_05.cc b/tests/matrix_free/ecl_05.cc
index a91d93c784..fb3fdac050 100644
--- a/tests/matrix_free/ecl_05.cc
+++ b/tests/matrix_free/ecl_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/ecl_fe_q.h b/tests/matrix_free/ecl_fe_q.h
index 5fc22b2a04..a4ce1ce46e 100644
--- a/tests/matrix_free/ecl_fe_q.h
+++ b/tests/matrix_free/ecl_fe_q.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/element_birth_and_death_01.cc b/tests/matrix_free/element_birth_and_death_01.cc
index fe8dec43a2..bc0332544c 100644
--- a/tests/matrix_free/element_birth_and_death_01.cc
+++ b/tests/matrix_free/element_birth_and_death_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/estimate_condition_number_mass.cc b/tests/matrix_free/estimate_condition_number_mass.cc
index dcc599875f..8c2fa677f8 100644
--- a/tests/matrix_free/estimate_condition_number_mass.cc
+++ b/tests/matrix_free/estimate_condition_number_mass.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/face_setup_01.cc b/tests/matrix_free/face_setup_01.cc
index 8d7062a9cc..f5fa58c57d 100644
--- a/tests/matrix_free/face_setup_01.cc
+++ b/tests/matrix_free/face_setup_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/faces_value_optimization.cc b/tests/matrix_free/faces_value_optimization.cc
index 35af3d9406..0d5ca64f47 100644
--- a/tests/matrix_free/faces_value_optimization.cc
+++ b/tests/matrix_free/faces_value_optimization.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/faces_value_optimization_02.cc b/tests/matrix_free/faces_value_optimization_02.cc
index 73e2e42dfc..58fc3a8c7f 100644
--- a/tests/matrix_free/faces_value_optimization_02.cc
+++ b/tests/matrix_free/faces_value_optimization_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/faces_value_optimization_03.cc b/tests/matrix_free/faces_value_optimization_03.cc
index 384e745b20..163981a37e 100644
--- a/tests/matrix_free/faces_value_optimization_03.cc
+++ b/tests/matrix_free/faces_value_optimization_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/fe_evaluation_renumbered.cc b/tests/matrix_free/fe_evaluation_renumbered.cc
index 902e540fff..855ad7b9dc 100644
--- a/tests/matrix_free/fe_evaluation_renumbered.cc
+++ b/tests/matrix_free/fe_evaluation_renumbered.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/fe_evaluation_shift.cc b/tests/matrix_free/fe_evaluation_shift.cc
index dcbac6cf0e..73909366aa 100644
--- a/tests/matrix_free/fe_evaluation_shift.cc
+++ b/tests/matrix_free/fe_evaluation_shift.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/fe_remote_evaluation_01.cc b/tests/matrix_free/fe_remote_evaluation_01.cc
index 5590ec6ef5..cbd9f39d23 100644
--- a/tests/matrix_free/fe_remote_evaluation_01.cc
+++ b/tests/matrix_free/fe_remote_evaluation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/fe_remote_evaluation_02.cc b/tests/matrix_free/fe_remote_evaluation_02.cc
index e100f97335..e57c3062b4 100644
--- a/tests/matrix_free/fe_remote_evaluation_02.cc
+++ b/tests/matrix_free/fe_remote_evaluation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/fe_remote_evaluation_03.cc b/tests/matrix_free/fe_remote_evaluation_03.cc
index caceecd986..d6b9e232fd 100644
--- a/tests/matrix_free/fe_remote_evaluation_03.cc
+++ b/tests/matrix_free/fe_remote_evaluation_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/get_functions_common.h b/tests/matrix_free/get_functions_common.h
index e018de5954..458dc42fd1 100644
--- a/tests/matrix_free/get_functions_common.h
+++ b/tests/matrix_free/get_functions_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2022 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/get_functions_faces.cc b/tests/matrix_free/get_functions_faces.cc
index 7e215ffdb8..c861213a8d 100644
--- a/tests/matrix_free/get_functions_faces.cc
+++ b/tests/matrix_free/get_functions_faces.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/get_functions_multife.cc b/tests/matrix_free/get_functions_multife.cc
index b80f134b69..5a09fadf62 100644
--- a/tests/matrix_free/get_functions_multife.cc
+++ b/tests/matrix_free/get_functions_multife.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/get_functions_multife2.cc b/tests/matrix_free/get_functions_multife2.cc
index 78f7600253..6e6de2713c 100644
--- a/tests/matrix_free/get_functions_multife2.cc
+++ b/tests/matrix_free/get_functions_multife2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/get_functions_notempl.cc b/tests/matrix_free/get_functions_notempl.cc
index 89097548a2..8a28a53372 100644
--- a/tests/matrix_free/get_functions_notempl.cc
+++ b/tests/matrix_free/get_functions_notempl.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/get_functions_rect.cc b/tests/matrix_free/get_functions_rect.cc
index bea04e4efe..f8c5383178 100644
--- a/tests/matrix_free/get_functions_rect.cc
+++ b/tests/matrix_free/get_functions_rect.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/get_functions_variants.cc b/tests/matrix_free/get_functions_variants.cc
index 3dc2785e24..a5fc2b6128 100644
--- a/tests/matrix_free/get_functions_variants.cc
+++ b/tests/matrix_free/get_functions_variants.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/get_functions_variants_gl.cc b/tests/matrix_free/get_functions_variants_gl.cc
index d5d3a9262d..c6bbc774d1 100644
--- a/tests/matrix_free/get_functions_variants_gl.cc
+++ b/tests/matrix_free/get_functions_variants_gl.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/get_values_plain.cc b/tests/matrix_free/get_values_plain.cc
index 51014baac1..7fec74b700 100644
--- a/tests/matrix_free/get_values_plain.cc
+++ b/tests/matrix_free/get_values_plain.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/hanging_node_kernels_01.cc b/tests/matrix_free/hanging_node_kernels_01.cc
index 55a9aeac85..1b0972e328 100644
--- a/tests/matrix_free/hanging_node_kernels_01.cc
+++ b/tests/matrix_free/hanging_node_kernels_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/hp_dg_01.cc b/tests/matrix_free/hp_dg_01.cc
index 00fbc13d01..0e7c64ec63 100644
--- a/tests/matrix_free/hp_dg_01.cc
+++ b/tests/matrix_free/hp_dg_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/integrate_functions.cc b/tests/matrix_free/integrate_functions.cc
index 37c18e3e50..0e3e6acb2c 100644
--- a/tests/matrix_free/integrate_functions.cc
+++ b/tests/matrix_free/integrate_functions.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/integrate_functions_hessians.cc b/tests/matrix_free/integrate_functions_hessians.cc
index 90aaade6b5..bfa1d70e36 100644
--- a/tests/matrix_free/integrate_functions_hessians.cc
+++ b/tests/matrix_free/integrate_functions_hessians.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/integrate_functions_multife.cc b/tests/matrix_free/integrate_functions_multife.cc
index 526311047b..85a67b7b77 100644
--- a/tests/matrix_free/integrate_functions_multife.cc
+++ b/tests/matrix_free/integrate_functions_multife.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/integrate_functions_multife2.cc b/tests/matrix_free/integrate_functions_multife2.cc
index a2f18e38ba..d34a59ab76 100644
--- a/tests/matrix_free/integrate_functions_multife2.cc
+++ b/tests/matrix_free/integrate_functions_multife2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/interpolate_quadrature_01.cc b/tests/matrix_free/interpolate_quadrature_01.cc
index d4223de622..827837ec24 100644
--- a/tests/matrix_free/interpolate_quadrature_01.cc
+++ b/tests/matrix_free/interpolate_quadrature_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/interpolate_rt.cc b/tests/matrix_free/interpolate_rt.cc
index 2c0c17c4c1..bf581e97bf 100644
--- a/tests/matrix_free/interpolate_rt.cc
+++ b/tests/matrix_free/interpolate_rt.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/interpolate_rt_deformed.cc b/tests/matrix_free/interpolate_rt_deformed.cc
index 595e62fd9c..4b95a6da6e 100644
--- a/tests/matrix_free/interpolate_rt_deformed.cc
+++ b/tests/matrix_free/interpolate_rt_deformed.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/interpolate_to_mg.cc b/tests/matrix_free/interpolate_to_mg.cc
index 7ea0d30653..8b056fd616 100644
--- a/tests/matrix_free/interpolate_to_mg.cc
+++ b/tests/matrix_free/interpolate_to_mg.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/inverse_mass_01.cc b/tests/matrix_free/inverse_mass_01.cc
index 1d9f87e679..83e9226395 100644
--- a/tests/matrix_free/inverse_mass_01.cc
+++ b/tests/matrix_free/inverse_mass_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/inverse_mass_02.cc b/tests/matrix_free/inverse_mass_02.cc
index 4b5d5edfbf..1f57bbbc16 100644
--- a/tests/matrix_free/inverse_mass_02.cc
+++ b/tests/matrix_free/inverse_mass_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/inverse_mass_03.cc b/tests/matrix_free/inverse_mass_03.cc
index 018901fb2d..a3dbefae0e 100644
--- a/tests/matrix_free/inverse_mass_03.cc
+++ b/tests/matrix_free/inverse_mass_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/inverse_mass_05.cc b/tests/matrix_free/inverse_mass_05.cc
index 605661e988..a03d945d94 100644
--- a/tests/matrix_free/inverse_mass_05.cc
+++ b/tests/matrix_free/inverse_mass_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/inverse_mass_06.cc b/tests/matrix_free/inverse_mass_06.cc
index 6f44ec867d..886dd7f938 100644
--- a/tests/matrix_free/inverse_mass_06.cc
+++ b/tests/matrix_free/inverse_mass_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/inverse_mass_07.cc b/tests/matrix_free/inverse_mass_07.cc
index e794d38b2a..f54acba104 100644
--- a/tests/matrix_free/inverse_mass_07.cc
+++ b/tests/matrix_free/inverse_mass_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/inverse_mass_08.cc b/tests/matrix_free/inverse_mass_08.cc
index 623bb654d5..c0448b099a 100644
--- a/tests/matrix_free/inverse_mass_08.cc
+++ b/tests/matrix_free/inverse_mass_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/inverse_mass_09.cc b/tests/matrix_free/inverse_mass_09.cc
index b7afd012dd..8268cd15ec 100644
--- a/tests/matrix_free/inverse_mass_09.cc
+++ b/tests/matrix_free/inverse_mass_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/laplace_operator_01.cc b/tests/matrix_free/laplace_operator_01.cc
index 5a9a442963..82786c30a3 100644
--- a/tests/matrix_free/laplace_operator_01.cc
+++ b/tests/matrix_free/laplace_operator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/laplace_operator_02.cc b/tests/matrix_free/laplace_operator_02.cc
index 8d2c31fc4c..704d1078a2 100644
--- a/tests/matrix_free/laplace_operator_02.cc
+++ b/tests/matrix_free/laplace_operator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/laplace_operator_03.cc b/tests/matrix_free/laplace_operator_03.cc
index f0b418ea30..8722682385 100644
--- a/tests/matrix_free/laplace_operator_03.cc
+++ b/tests/matrix_free/laplace_operator_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/laplace_operator_05.cc b/tests/matrix_free/laplace_operator_05.cc
index 2f0a177c1b..0c0a344199 100644
--- a/tests/matrix_free/laplace_operator_05.cc
+++ b/tests/matrix_free/laplace_operator_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/loop_boundary.cc b/tests/matrix_free/loop_boundary.cc
index d53174ba1e..aab6eaf380 100644
--- a/tests/matrix_free/loop_boundary.cc
+++ b/tests/matrix_free/loop_boundary.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/loop_boundary_02.cc b/tests/matrix_free/loop_boundary_02.cc
index c4d62181e4..4d02026723 100644
--- a/tests/matrix_free/loop_boundary_02.cc
+++ b/tests/matrix_free/loop_boundary_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/mass_operator_01.cc b/tests/matrix_free/mass_operator_01.cc
index 6633c22a3b..4fc0365cff 100644
--- a/tests/matrix_free/mass_operator_01.cc
+++ b/tests/matrix_free/mass_operator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/mass_operator_02.cc b/tests/matrix_free/mass_operator_02.cc
index 222ca38f85..cc901632d9 100644
--- a/tests/matrix_free/mass_operator_02.cc
+++ b/tests/matrix_free/mass_operator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/mass_operator_03.cc b/tests/matrix_free/mass_operator_03.cc
index 68fe5f06ab..fdb84ef3ea 100644
--- a/tests/matrix_free/mass_operator_03.cc
+++ b/tests/matrix_free/mass_operator_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/mass_operator_04.cc b/tests/matrix_free/mass_operator_04.cc
index 1023d16c38..68bf51a387 100644
--- a/tests/matrix_free/mass_operator_04.cc
+++ b/tests/matrix_free/mass_operator_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_10.cc b/tests/matrix_free/matrix_vector_10.cc
index f60cb23fc8..8453eff954 100644
--- a/tests/matrix_free/matrix_vector_10.cc
+++ b/tests/matrix_free/matrix_vector_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_11.cc b/tests/matrix_free/matrix_vector_11.cc
index 833f348694..dead48c673 100644
--- a/tests/matrix_free/matrix_vector_11.cc
+++ b/tests/matrix_free/matrix_vector_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_12.cc b/tests/matrix_free/matrix_vector_12.cc
index 22f8f890c2..9dac3a4f2b 100644
--- a/tests/matrix_free/matrix_vector_12.cc
+++ b/tests/matrix_free/matrix_vector_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_13.cc b/tests/matrix_free/matrix_vector_13.cc
index 16ac71a430..c1e89c04d2 100644
--- a/tests/matrix_free/matrix_vector_13.cc
+++ b/tests/matrix_free/matrix_vector_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_15.cc b/tests/matrix_free/matrix_vector_15.cc
index 2809817969..eabcc69318 100644
--- a/tests/matrix_free/matrix_vector_15.cc
+++ b/tests/matrix_free/matrix_vector_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_16.cc b/tests/matrix_free/matrix_vector_16.cc
index 1d1aa0708c..20c3d1d727 100644
--- a/tests/matrix_free/matrix_vector_16.cc
+++ b/tests/matrix_free/matrix_vector_16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_18.cc b/tests/matrix_free/matrix_vector_18.cc
index e701d9856c..47c2770c81 100644
--- a/tests/matrix_free/matrix_vector_18.cc
+++ b/tests/matrix_free/matrix_vector_18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_19.cc b/tests/matrix_free/matrix_vector_19.cc
index b511af5ba8..9f8d2c9da3 100644
--- a/tests/matrix_free/matrix_vector_19.cc
+++ b/tests/matrix_free/matrix_vector_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_20.cc b/tests/matrix_free/matrix_vector_20.cc
index d5218c3e51..d844164792 100644
--- a/tests/matrix_free/matrix_vector_20.cc
+++ b/tests/matrix_free/matrix_vector_20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_21.cc b/tests/matrix_free/matrix_vector_21.cc
index b9d1955396..1dacfa21c7 100644
--- a/tests/matrix_free/matrix_vector_21.cc
+++ b/tests/matrix_free/matrix_vector_21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_22.cc b/tests/matrix_free/matrix_vector_22.cc
index 4a3a007957..1b2b4fb1c1 100644
--- a/tests/matrix_free/matrix_vector_22.cc
+++ b/tests/matrix_free/matrix_vector_22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_23.cc b/tests/matrix_free/matrix_vector_23.cc
index 5a4cadd5f4..27c28599df 100644
--- a/tests/matrix_free/matrix_vector_23.cc
+++ b/tests/matrix_free/matrix_vector_23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_blocks.cc b/tests/matrix_free/matrix_vector_blocks.cc
index c823c8caad..9996638211 100644
--- a/tests/matrix_free/matrix_vector_blocks.cc
+++ b/tests/matrix_free/matrix_vector_blocks.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_common.h b/tests/matrix_free/matrix_vector_common.h
index 16f2cb0464..15a8c93e83 100644
--- a/tests/matrix_free/matrix_vector_common.h
+++ b/tests/matrix_free/matrix_vector_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_curl.cc b/tests/matrix_free/matrix_vector_curl.cc
index 8e58b6f6b8..c22f837737 100644
--- a/tests/matrix_free/matrix_vector_curl.cc
+++ b/tests/matrix_free/matrix_vector_curl.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_div.cc b/tests/matrix_free/matrix_vector_div.cc
index e008d2acf5..d76f8a8e93 100644
--- a/tests/matrix_free/matrix_vector_div.cc
+++ b/tests/matrix_free/matrix_vector_div.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_10.cc b/tests/matrix_free/matrix_vector_faces_10.cc
index 5e328a9f18..ed6617a91b 100644
--- a/tests/matrix_free/matrix_vector_faces_10.cc
+++ b/tests/matrix_free/matrix_vector_faces_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_11.cc b/tests/matrix_free/matrix_vector_faces_11.cc
index c99113ea9e..61cc89d815 100644
--- a/tests/matrix_free/matrix_vector_faces_11.cc
+++ b/tests/matrix_free/matrix_vector_faces_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_12.cc b/tests/matrix_free/matrix_vector_faces_12.cc
index c0ee9c159b..4d95a51df6 100644
--- a/tests/matrix_free/matrix_vector_faces_12.cc
+++ b/tests/matrix_free/matrix_vector_faces_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_13.cc b/tests/matrix_free/matrix_vector_faces_13.cc
index 9a539428d2..5ade3b47ee 100644
--- a/tests/matrix_free/matrix_vector_faces_13.cc
+++ b/tests/matrix_free/matrix_vector_faces_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_14.cc b/tests/matrix_free/matrix_vector_faces_14.cc
index 6029cddd49..4554258245 100644
--- a/tests/matrix_free/matrix_vector_faces_14.cc
+++ b/tests/matrix_free/matrix_vector_faces_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_15.cc b/tests/matrix_free/matrix_vector_faces_15.cc
index 1d6e7a6cef..433d86a145 100644
--- a/tests/matrix_free/matrix_vector_faces_15.cc
+++ b/tests/matrix_free/matrix_vector_faces_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_16.cc b/tests/matrix_free/matrix_vector_faces_16.cc
index 4c5de90f09..225060c893 100644
--- a/tests/matrix_free/matrix_vector_faces_16.cc
+++ b/tests/matrix_free/matrix_vector_faces_16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_17.cc b/tests/matrix_free/matrix_vector_faces_17.cc
index cdf9766f1c..fbfe1fca94 100644
--- a/tests/matrix_free/matrix_vector_faces_17.cc
+++ b/tests/matrix_free/matrix_vector_faces_17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_18.cc b/tests/matrix_free/matrix_vector_faces_18.cc
index e2b1007359..0cd7c44956 100644
--- a/tests/matrix_free/matrix_vector_faces_18.cc
+++ b/tests/matrix_free/matrix_vector_faces_18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_19.cc b/tests/matrix_free/matrix_vector_faces_19.cc
index 18488c2fa4..783d75f48b 100644
--- a/tests/matrix_free/matrix_vector_faces_19.cc
+++ b/tests/matrix_free/matrix_vector_faces_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_20.cc b/tests/matrix_free/matrix_vector_faces_20.cc
index 6fc35a5fad..78b507a3a1 100644
--- a/tests/matrix_free/matrix_vector_faces_20.cc
+++ b/tests/matrix_free/matrix_vector_faces_20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_21.cc b/tests/matrix_free/matrix_vector_faces_21.cc
index ea8ce159b4..f5ce2fa99c 100644
--- a/tests/matrix_free/matrix_vector_faces_21.cc
+++ b/tests/matrix_free/matrix_vector_faces_21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_22.cc b/tests/matrix_free/matrix_vector_faces_22.cc
index e6cd119aac..261a012a2a 100644
--- a/tests/matrix_free/matrix_vector_faces_22.cc
+++ b/tests/matrix_free/matrix_vector_faces_22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_23.cc b/tests/matrix_free/matrix_vector_faces_23.cc
index 68832694e1..fb75a35586 100644
--- a/tests/matrix_free/matrix_vector_faces_23.cc
+++ b/tests/matrix_free/matrix_vector_faces_23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_24.cc b/tests/matrix_free/matrix_vector_faces_24.cc
index f65f0eeaa4..301ac36bfd 100644
--- a/tests/matrix_free/matrix_vector_faces_24.cc
+++ b/tests/matrix_free/matrix_vector_faces_24.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_25.cc b/tests/matrix_free/matrix_vector_faces_25.cc
index f1bd544ddd..ab0db1b77b 100644
--- a/tests/matrix_free/matrix_vector_faces_25.cc
+++ b/tests/matrix_free/matrix_vector_faces_25.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_29.cc b/tests/matrix_free/matrix_vector_faces_29.cc
index c5921e2a04..981d496f88 100644
--- a/tests/matrix_free/matrix_vector_faces_29.cc
+++ b/tests/matrix_free/matrix_vector_faces_29.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_30.cc b/tests/matrix_free/matrix_vector_faces_30.cc
index 8a3a2957f7..1e52884859 100644
--- a/tests/matrix_free/matrix_vector_faces_30.cc
+++ b/tests/matrix_free/matrix_vector_faces_30.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_31.cc b/tests/matrix_free/matrix_vector_faces_31.cc
index 64973066ab..95ac9a4109 100644
--- a/tests/matrix_free/matrix_vector_faces_31.cc
+++ b/tests/matrix_free/matrix_vector_faces_31.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_32.cc b/tests/matrix_free/matrix_vector_faces_32.cc
index 587113b8ef..b4eebef21f 100644
--- a/tests/matrix_free/matrix_vector_faces_32.cc
+++ b/tests/matrix_free/matrix_vector_faces_32.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_33.cc b/tests/matrix_free/matrix_vector_faces_33.cc
index db5ec466d2..c6c6f979b5 100644
--- a/tests/matrix_free/matrix_vector_faces_33.cc
+++ b/tests/matrix_free/matrix_vector_faces_33.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_faces_34.cc b/tests/matrix_free/matrix_vector_faces_34.cc
index 2af981974e..0ec2c60f82 100644
--- a/tests/matrix_free/matrix_vector_faces_34.cc
+++ b/tests/matrix_free/matrix_vector_faces_34.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_hessians_cells.cc b/tests/matrix_free/matrix_vector_hessians_cells.cc
index 2031b80352..065b7896a3 100644
--- a/tests/matrix_free/matrix_vector_hessians_cells.cc
+++ b/tests/matrix_free/matrix_vector_hessians_cells.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_hessians_faces.cc b/tests/matrix_free/matrix_vector_hessians_faces.cc
index 6523aac3cf..13d06df1dc 100644
--- a/tests/matrix_free/matrix_vector_hessians_faces.cc
+++ b/tests/matrix_free/matrix_vector_hessians_faces.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_hessians_general_cells.cc b/tests/matrix_free/matrix_vector_hessians_general_cells.cc
index 4666bb72a5..1966b0bfc1 100644
--- a/tests/matrix_free/matrix_vector_hessians_general_cells.cc
+++ b/tests/matrix_free/matrix_vector_hessians_general_cells.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_hessians_general_faces.cc b/tests/matrix_free/matrix_vector_hessians_general_faces.cc
index b95ef167c2..919beb5ddc 100644
--- a/tests/matrix_free/matrix_vector_hessians_general_faces.cc
+++ b/tests/matrix_free/matrix_vector_hessians_general_faces.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_hp.cc b/tests/matrix_free/matrix_vector_hp.cc
index 91401ad416..62a3c58e3a 100644
--- a/tests/matrix_free/matrix_vector_hp.cc
+++ b/tests/matrix_free/matrix_vector_hp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_hp_no_template.cc b/tests/matrix_free/matrix_vector_hp_no_template.cc
index a476376c77..2352ff3a76 100644
--- a/tests/matrix_free/matrix_vector_hp_no_template.cc
+++ b/tests/matrix_free/matrix_vector_hp_no_template.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_hp_parallel_01.cc b/tests/matrix_free/matrix_vector_hp_parallel_01.cc
index 7ac38da9d1..f0dd9503d7 100644
--- a/tests/matrix_free/matrix_vector_hp_parallel_01.cc
+++ b/tests/matrix_free/matrix_vector_hp_parallel_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_large_degree_02.cc b/tests/matrix_free/matrix_vector_large_degree_02.cc
index 8c4789c2b6..f34919f21d 100644
--- a/tests/matrix_free/matrix_vector_large_degree_02.cc
+++ b/tests/matrix_free/matrix_vector_large_degree_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_mf.h b/tests/matrix_free/matrix_vector_mf.h
index d32a11f23d..83b5ad0a99 100644
--- a/tests/matrix_free/matrix_vector_mf.h
+++ b/tests/matrix_free/matrix_vector_mf.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_mg.cc b/tests/matrix_free/matrix_vector_mg.cc
index 71e2985af5..c33c894b57 100644
--- a/tests/matrix_free/matrix_vector_mg.cc
+++ b/tests/matrix_free/matrix_vector_mg.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_rt_04.cc b/tests/matrix_free/matrix_vector_rt_04.cc
index 131b3d071f..1f6caec38f 100644
--- a/tests/matrix_free/matrix_vector_rt_04.cc
+++ b/tests/matrix_free/matrix_vector_rt_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_rt_common.h b/tests/matrix_free/matrix_vector_rt_common.h
index d29a231925..8e2af01e35 100644
--- a/tests/matrix_free/matrix_vector_rt_common.h
+++ b/tests/matrix_free/matrix_vector_rt_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_rt_face_04.cc b/tests/matrix_free/matrix_vector_rt_face_04.cc
index e7dd1de903..4d612eb5f6 100644
--- a/tests/matrix_free/matrix_vector_rt_face_04.cc
+++ b/tests/matrix_free/matrix_vector_rt_face_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_rt_face_common.h b/tests/matrix_free/matrix_vector_rt_face_common.h
index 564e346fb3..ca9a9049df 100644
--- a/tests/matrix_free/matrix_vector_rt_face_common.h
+++ b/tests/matrix_free/matrix_vector_rt_face_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes.cc b/tests/matrix_free/matrix_vector_stokes.cc
index 4170ad170c..85d28b8756 100644
--- a/tests/matrix_free/matrix_vector_stokes.cc
+++ b/tests/matrix_free/matrix_vector_stokes.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes_base.cc b/tests/matrix_free/matrix_vector_stokes_base.cc
index 5c23da762c..9bd2342087 100644
--- a/tests/matrix_free/matrix_vector_stokes_base.cc
+++ b/tests/matrix_free/matrix_vector_stokes_base.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes_flux.cc b/tests/matrix_free/matrix_vector_stokes_flux.cc
index 90e05df30c..d0c91847d3 100644
--- a/tests/matrix_free/matrix_vector_stokes_flux.cc
+++ b/tests/matrix_free/matrix_vector_stokes_flux.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes_no_vectorization.cc b/tests/matrix_free/matrix_vector_stokes_no_vectorization.cc
index a5e0ae44c5..f97a2d2a3a 100644
--- a/tests/matrix_free/matrix_vector_stokes_no_vectorization.cc
+++ b/tests/matrix_free/matrix_vector_stokes_no_vectorization.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes_noflux.cc b/tests/matrix_free/matrix_vector_stokes_noflux.cc
index db37de6e5c..e918a10c29 100644
--- a/tests/matrix_free/matrix_vector_stokes_noflux.cc
+++ b/tests/matrix_free/matrix_vector_stokes_noflux.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes_noflux2.cc b/tests/matrix_free/matrix_vector_stokes_noflux2.cc
index 6c88898dee..05099eb11c 100644
--- a/tests/matrix_free/matrix_vector_stokes_noflux2.cc
+++ b/tests/matrix_free/matrix_vector_stokes_noflux2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes_notempl.cc b/tests/matrix_free/matrix_vector_stokes_notempl.cc
index f1abbab453..4984fdb73b 100644
--- a/tests/matrix_free/matrix_vector_stokes_notempl.cc
+++ b/tests/matrix_free/matrix_vector_stokes_notempl.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes_onedof.cc b/tests/matrix_free/matrix_vector_stokes_onedof.cc
index a0af237033..a8c9640d75 100644
--- a/tests/matrix_free/matrix_vector_stokes_onedof.cc
+++ b/tests/matrix_free/matrix_vector_stokes_onedof.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes_qdg0.cc b/tests/matrix_free/matrix_vector_stokes_qdg0.cc
index 1de26fb593..b2622d3b29 100644
--- a/tests/matrix_free/matrix_vector_stokes_qdg0.cc
+++ b/tests/matrix_free/matrix_vector_stokes_qdg0.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/matrix_vector_stokes_qdg0b.cc b/tests/matrix_free/matrix_vector_stokes_qdg0b.cc
index 708684a6c7..e1b6f2cfe1 100644
--- a/tests/matrix_free/matrix_vector_stokes_qdg0b.cc
+++ b/tests/matrix_free/matrix_vector_stokes_qdg0b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/mixed_mesh_hn_algorithm_01.cc b/tests/matrix_free/mixed_mesh_hn_algorithm_01.cc
index 091f805680..1eaca61c6e 100644
--- a/tests/matrix_free/mixed_mesh_hn_algorithm_01.cc
+++ b/tests/matrix_free/mixed_mesh_hn_algorithm_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/no_index_initialize.cc b/tests/matrix_free/no_index_initialize.cc
index ceb1f5cb9d..7b89e609fc 100644
--- a/tests/matrix_free/no_index_initialize.cc
+++ b/tests/matrix_free/no_index_initialize.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid.cc b/tests/matrix_free/parallel_multigrid.cc
index c76ed85c7e..a06f800f82 100644
--- a/tests/matrix_free/parallel_multigrid.cc
+++ b/tests/matrix_free/parallel_multigrid.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid_02.cc b/tests/matrix_free/parallel_multigrid_02.cc
index 3cd4eae9e8..245aab83ef 100644
--- a/tests/matrix_free/parallel_multigrid_02.cc
+++ b/tests/matrix_free/parallel_multigrid_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid_adaptive_02.cc b/tests/matrix_free/parallel_multigrid_adaptive_02.cc
index 608e6096bf..1b8e2a85c8 100644
--- a/tests/matrix_free/parallel_multigrid_adaptive_02.cc
+++ b/tests/matrix_free/parallel_multigrid_adaptive_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid_adaptive_04.cc b/tests/matrix_free/parallel_multigrid_adaptive_04.cc
index 5c2825efc9..c9651d9c8b 100644
--- a/tests/matrix_free/parallel_multigrid_adaptive_04.cc
+++ b/tests/matrix_free/parallel_multigrid_adaptive_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid_adaptive_06.cc b/tests/matrix_free/parallel_multigrid_adaptive_06.cc
index acdd2292d0..e7d340fb57 100644
--- a/tests/matrix_free/parallel_multigrid_adaptive_06.cc
+++ b/tests/matrix_free/parallel_multigrid_adaptive_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid_adaptive_06ref.cc b/tests/matrix_free/parallel_multigrid_adaptive_06ref.cc
index 8ef97b95e2..7b1f73dbac 100644
--- a/tests/matrix_free/parallel_multigrid_adaptive_06ref.cc
+++ b/tests/matrix_free/parallel_multigrid_adaptive_06ref.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid_adaptive_07.cc b/tests/matrix_free/parallel_multigrid_adaptive_07.cc
index cf750d6ba8..ab28075f37 100644
--- a/tests/matrix_free/parallel_multigrid_adaptive_07.cc
+++ b/tests/matrix_free/parallel_multigrid_adaptive_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid_fullydistributed.cc b/tests/matrix_free/parallel_multigrid_fullydistributed.cc
index b671e09cff..95b8a92c96 100644
--- a/tests/matrix_free/parallel_multigrid_fullydistributed.cc
+++ b/tests/matrix_free/parallel_multigrid_fullydistributed.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid_mf.cc b/tests/matrix_free/parallel_multigrid_mf.cc
index a57870dfa5..24e91096b0 100644
--- a/tests/matrix_free/parallel_multigrid_mf.cc
+++ b/tests/matrix_free/parallel_multigrid_mf.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/parallel_multigrid_mf_02.cc b/tests/matrix_free/parallel_multigrid_mf_02.cc
index cda324b67f..35e42dc05a 100644
--- a/tests/matrix_free/parallel_multigrid_mf_02.cc
+++ b/tests/matrix_free/parallel_multigrid_mf_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/partitioner_01.cc b/tests/matrix_free/partitioner_01.cc
index bddb6bfe28..a73b4be4c7 100644
--- a/tests/matrix_free/partitioner_01.cc
+++ b/tests/matrix_free/partitioner_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pbc_orientation_01.cc b/tests/matrix_free/pbc_orientation_01.cc
index 3ac86a4ccf..a808dbc4ce 100644
--- a/tests/matrix_free/pbc_orientation_01.cc
+++ b/tests/matrix_free/pbc_orientation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pbc_orientation_02.cc b/tests/matrix_free/pbc_orientation_02.cc
index bd6a71f1bb..488ca7ca7a 100644
--- a/tests/matrix_free/pbc_orientation_02.cc
+++ b/tests/matrix_free/pbc_orientation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_01.cc b/tests/matrix_free/point_evaluation_01.cc
index f9a232e42b..fdf6605b88 100644
--- a/tests/matrix_free/point_evaluation_01.cc
+++ b/tests/matrix_free/point_evaluation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_02.cc b/tests/matrix_free/point_evaluation_02.cc
index 857210e8ab..3b2879855a 100644
--- a/tests/matrix_free/point_evaluation_02.cc
+++ b/tests/matrix_free/point_evaluation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_03.cc b/tests/matrix_free/point_evaluation_03.cc
index a70870f51d..c7fa70f797 100644
--- a/tests/matrix_free/point_evaluation_03.cc
+++ b/tests/matrix_free/point_evaluation_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_04.cc b/tests/matrix_free/point_evaluation_04.cc
index 6dd872c404..2cc1d15c8e 100644
--- a/tests/matrix_free/point_evaluation_04.cc
+++ b/tests/matrix_free/point_evaluation_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_05.cc b/tests/matrix_free/point_evaluation_05.cc
index 8c2f0cb84b..6c30d54889 100644
--- a/tests/matrix_free/point_evaluation_05.cc
+++ b/tests/matrix_free/point_evaluation_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_06.cc b/tests/matrix_free/point_evaluation_06.cc
index 95539b5fca..4f4028be0c 100644
--- a/tests/matrix_free/point_evaluation_06.cc
+++ b/tests/matrix_free/point_evaluation_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_07.cc b/tests/matrix_free/point_evaluation_07.cc
index 681d4ba6d2..47077c6ec6 100644
--- a/tests/matrix_free/point_evaluation_07.cc
+++ b/tests/matrix_free/point_evaluation_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_08.cc b/tests/matrix_free/point_evaluation_08.cc
index 7b58b41137..aad3c2187f 100644
--- a/tests/matrix_free/point_evaluation_08.cc
+++ b/tests/matrix_free/point_evaluation_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_09.cc b/tests/matrix_free/point_evaluation_09.cc
index 1fbea3e35d..7a5a61def3 100644
--- a/tests/matrix_free/point_evaluation_09.cc
+++ b/tests/matrix_free/point_evaluation_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_10.cc b/tests/matrix_free/point_evaluation_10.cc
index 2c20607a5b..ad205f0fe8 100644
--- a/tests/matrix_free/point_evaluation_10.cc
+++ b/tests/matrix_free/point_evaluation_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_11.cc b/tests/matrix_free/point_evaluation_11.cc
index cbf980daa1..16c4f6c6f0 100644
--- a/tests/matrix_free/point_evaluation_11.cc
+++ b/tests/matrix_free/point_evaluation_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_12.cc b/tests/matrix_free/point_evaluation_12.cc
index c99b04c072..d3085d82a8 100644
--- a/tests/matrix_free/point_evaluation_12.cc
+++ b/tests/matrix_free/point_evaluation_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_13.cc b/tests/matrix_free/point_evaluation_13.cc
index d5b2d0da5e..c8c4c5a777 100644
--- a/tests/matrix_free/point_evaluation_13.cc
+++ b/tests/matrix_free/point_evaluation_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_14.cc b/tests/matrix_free/point_evaluation_14.cc
index 004f5c9d6a..57cc9e8189 100644
--- a/tests/matrix_free/point_evaluation_14.cc
+++ b/tests/matrix_free/point_evaluation_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_15.cc b/tests/matrix_free/point_evaluation_15.cc
index 2a62d44c55..06e7b4d14b 100644
--- a/tests/matrix_free/point_evaluation_15.cc
+++ b/tests/matrix_free/point_evaluation_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_16.cc b/tests/matrix_free/point_evaluation_16.cc
index 6c2692f8c8..760799e1e1 100644
--- a/tests/matrix_free/point_evaluation_16.cc
+++ b/tests/matrix_free/point_evaluation_16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_17.cc b/tests/matrix_free/point_evaluation_17.cc
index fa8d8fd2a4..fc4139498f 100644
--- a/tests/matrix_free/point_evaluation_17.cc
+++ b/tests/matrix_free/point_evaluation_17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_19.cc b/tests/matrix_free/point_evaluation_19.cc
index 64c6902c6e..6d46f26823 100644
--- a/tests/matrix_free/point_evaluation_19.cc
+++ b/tests/matrix_free/point_evaluation_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_20.cc b/tests/matrix_free/point_evaluation_20.cc
index e4af02d0a2..ab2ea32c99 100644
--- a/tests/matrix_free/point_evaluation_20.cc
+++ b/tests/matrix_free/point_evaluation_20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_21.cc b/tests/matrix_free/point_evaluation_21.cc
index 8bbb7eb44a..18a6fc511a 100644
--- a/tests/matrix_free/point_evaluation_21.cc
+++ b/tests/matrix_free/point_evaluation_21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_22.cc b/tests/matrix_free/point_evaluation_22.cc
index 957d2d3cd8..bbf1afffb4 100644
--- a/tests/matrix_free/point_evaluation_22.cc
+++ b/tests/matrix_free/point_evaluation_22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_23.cc b/tests/matrix_free/point_evaluation_23.cc
index 5049cfa975..88ffd9eb1f 100644
--- a/tests/matrix_free/point_evaluation_23.cc
+++ b/tests/matrix_free/point_evaluation_23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_24.cc b/tests/matrix_free/point_evaluation_24.cc
index 374a520802..2a57411200 100644
--- a/tests/matrix_free/point_evaluation_24.cc
+++ b/tests/matrix_free/point_evaluation_24.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_25.cc b/tests/matrix_free/point_evaluation_25.cc
index dc998bd828..90fbd34e37 100644
--- a/tests/matrix_free/point_evaluation_25.cc
+++ b/tests/matrix_free/point_evaluation_25.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_26.cc b/tests/matrix_free/point_evaluation_26.cc
index 0202b570ca..93d1fbeef5 100644
--- a/tests/matrix_free/point_evaluation_26.cc
+++ b/tests/matrix_free/point_evaluation_26.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_27.cc b/tests/matrix_free/point_evaluation_27.cc
index 112abbebe5..2557ecbae8 100644
--- a/tests/matrix_free/point_evaluation_27.cc
+++ b/tests/matrix_free/point_evaluation_27.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_28.cc b/tests/matrix_free/point_evaluation_28.cc
index 127ca83b08..61069409d3 100644
--- a/tests/matrix_free/point_evaluation_28.cc
+++ b/tests/matrix_free/point_evaluation_28.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/point_evaluation_29.cc b/tests/matrix_free/point_evaluation_29.cc
index 8833e9ca66..fb4ff43c56 100644
--- a/tests/matrix_free/point_evaluation_29.cc
+++ b/tests/matrix_free/point_evaluation_29.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2023 by the deal.II authors
+ * Copyright (C) 2023 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/matrix_free/poisson_dg_hp.cc b/tests/matrix_free/poisson_dg_hp.cc
index d914517a4c..c448597e06 100644
--- a/tests/matrix_free/poisson_dg_hp.cc
+++ b/tests/matrix_free/poisson_dg_hp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pre_and_post_loops_01.cc b/tests/matrix_free/pre_and_post_loops_01.cc
index e9a146b88d..bd5611ca6b 100644
--- a/tests/matrix_free/pre_and_post_loops_01.cc
+++ b/tests/matrix_free/pre_and_post_loops_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pre_and_post_loops_02.cc b/tests/matrix_free/pre_and_post_loops_02.cc
index 34ad115e19..e282819b9e 100644
--- a/tests/matrix_free/pre_and_post_loops_02.cc
+++ b/tests/matrix_free/pre_and_post_loops_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pre_and_post_loops_03.cc b/tests/matrix_free/pre_and_post_loops_03.cc
index c85bfd50bb..d8bf5be25a 100644
--- a/tests/matrix_free/pre_and_post_loops_03.cc
+++ b/tests/matrix_free/pre_and_post_loops_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pre_and_post_loops_04.cc b/tests/matrix_free/pre_and_post_loops_04.cc
index 0ccaff39e8..6792edc065 100644
--- a/tests/matrix_free/pre_and_post_loops_04.cc
+++ b/tests/matrix_free/pre_and_post_loops_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pre_and_post_loops_05.cc b/tests/matrix_free/pre_and_post_loops_05.cc
index da9ebf556f..2b5656a30b 100644
--- a/tests/matrix_free/pre_and_post_loops_05.cc
+++ b/tests/matrix_free/pre_and_post_loops_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pre_and_post_loops_06.cc b/tests/matrix_free/pre_and_post_loops_06.cc
index 336e5fa0db..059d3594b5 100644
--- a/tests/matrix_free/pre_and_post_loops_06.cc
+++ b/tests/matrix_free/pre_and_post_loops_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pre_and_post_loops_07.cc b/tests/matrix_free/pre_and_post_loops_07.cc
index f7371dc288..ac786c5768 100644
--- a/tests/matrix_free/pre_and_post_loops_07.cc
+++ b/tests/matrix_free/pre_and_post_loops_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/pre_and_post_loops_08.cc b/tests/matrix_free/pre_and_post_loops_08.cc
index b155c49f41..63b59dedac 100644
--- a/tests/matrix_free/pre_and_post_loops_08.cc
+++ b/tests/matrix_free/pre_and_post_loops_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/reinit_matrix_free_threading.cc b/tests/matrix_free/reinit_matrix_free_threading.cc
index db9ad58a43..e5de76734e 100644
--- a/tests/matrix_free/reinit_matrix_free_threading.cc
+++ b/tests/matrix_free/reinit_matrix_free_threading.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/shape_info_inverse.cc b/tests/matrix_free/shape_info_inverse.cc
index 986d4f8401..3ab37d82b1 100644
--- a/tests/matrix_free/shape_info_inverse.cc
+++ b/tests/matrix_free/shape_info_inverse.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/step-37-inhomogeneous-1.cc b/tests/matrix_free/step-37-inhomogeneous-1.cc
index 1653e85453..e3ce50fa12 100644
--- a/tests/matrix_free/step-37-inhomogeneous-1.cc
+++ b/tests/matrix_free/step-37-inhomogeneous-1.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2022 by the deal.II authors
+ * Copyright (C) 2009 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/matrix_free/step-37.cc b/tests/matrix_free/step-37.cc
index 9630983333..324345ac74 100644
--- a/tests/matrix_free/step-37.cc
+++ b/tests/matrix_free/step-37.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/step-48.cc b/tests/matrix_free/step-48.cc
index 4969e4aa76..6ba613356e 100644
--- a/tests/matrix_free/step-48.cc
+++ b/tests/matrix_free/step-48.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/step-48b.cc b/tests/matrix_free/step-48b.cc
index 79f9bba504..a7c97fd57c 100644
--- a/tests/matrix_free/step-48b.cc
+++ b/tests/matrix_free/step-48b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/step-48c.cc b/tests/matrix_free/step-48c.cc
index d93ba4ef9c..2b388f22a7 100644
--- a/tests/matrix_free/step-48c.cc
+++ b/tests/matrix_free/step-48c.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/stokes_computation.cc b/tests/matrix_free/stokes_computation.cc
index a5c4903cbb..a3ad6c76fb 100644
--- a/tests/matrix_free/stokes_computation.cc
+++ b/tests/matrix_free/stokes_computation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/thread_correctness.cc b/tests/matrix_free/thread_correctness.cc
index c879ce06ca..f2a261d625 100644
--- a/tests/matrix_free/thread_correctness.cc
+++ b/tests/matrix_free/thread_correctness.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/thread_correctness_dg.cc b/tests/matrix_free/thread_correctness_dg.cc
index e70f64d4f6..47d43b8bf1 100644
--- a/tests/matrix_free/thread_correctness_dg.cc
+++ b/tests/matrix_free/thread_correctness_dg.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free/thread_correctness_hp.cc b/tests/matrix_free/thread_correctness_hp.cc
index 95114a2d15..dd6db3f7eb 100644
--- a/tests/matrix_free/thread_correctness_hp.cc
+++ b/tests/matrix_free/thread_correctness_hp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/coefficient_eval_device.cc b/tests/matrix_free_kokkos/coefficient_eval_device.cc
index 6965cfee4b..0d543de07e 100644
--- a/tests/matrix_free_kokkos/coefficient_eval_device.cc
+++ b/tests/matrix_free_kokkos/coefficient_eval_device.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/evaluate_1d_shape.cc b/tests/matrix_free_kokkos/evaluate_1d_shape.cc
index 77b6753e92..61e660a348 100644
--- a/tests/matrix_free_kokkos/evaluate_1d_shape.cc
+++ b/tests/matrix_free_kokkos/evaluate_1d_shape.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/evaluate_2d_shape.cc b/tests/matrix_free_kokkos/evaluate_2d_shape.cc
index faccb48dcf..ba358fa803 100644
--- a/tests/matrix_free_kokkos/evaluate_2d_shape.cc
+++ b/tests/matrix_free_kokkos/evaluate_2d_shape.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_initialize_vector.cc b/tests/matrix_free_kokkos/matrix_free_device_initialize_vector.cc
index bfac40bd8a..1a1fbb988c 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_initialize_vector.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_initialize_vector.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_10.cc b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_10.cc
index c48899c1eb..a504cca001 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_10.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_10a.cc b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_10a.cc
index 36bb7e599f..4224ddf3cc 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_10a.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_10a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_19.cc b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_19.cc
index 7bc9ab7f1f..4b40e31cfa 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_19.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_25.cc b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_25.cc
index f7d9c35db7..8b6a9c9967 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_25.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_25.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_26.cc b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_26.cc
index cd4c929ba5..e2e87a5b42 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_26.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_matrix_vector_26.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_multiple_objects.cc b/tests/matrix_free_kokkos/matrix_free_device_multiple_objects.cc
index 97089dfb9d..7adbd2ae74 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_multiple_objects.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_multiple_objects.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_no_index_initialize.cc b/tests/matrix_free_kokkos/matrix_free_device_no_index_initialize.cc
index b169a97dad..5feeb575cc 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_no_index_initialize.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_no_index_initialize.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_precondition_chebyshev.cc b/tests/matrix_free_kokkos/matrix_free_device_precondition_chebyshev.cc
index a0ec10241d..859d222271 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_precondition_chebyshev.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_precondition_chebyshev.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_free_device_reinit_01.cc b/tests/matrix_free_kokkos/matrix_free_device_reinit_01.cc
index b6e3879814..4656217d7c 100644
--- a/tests/matrix_free_kokkos/matrix_free_device_reinit_01.cc
+++ b/tests/matrix_free_kokkos/matrix_free_device_reinit_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_vector_device_common.h b/tests/matrix_free_kokkos/matrix_vector_device_common.h
index e9b60f29b0..206e2ec816 100644
--- a/tests/matrix_free_kokkos/matrix_vector_device_common.h
+++ b/tests/matrix_free_kokkos/matrix_vector_device_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/matrix_free_kokkos/matrix_vector_device_mf.h b/tests/matrix_free_kokkos/matrix_vector_device_mf.h
index e85494870d..b91578b054 100644
--- a/tests/matrix_free_kokkos/matrix_vector_device_mf.h
+++ b/tests/matrix_free_kokkos/matrix_vector_device_mf.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/meshworker/codim_01.cc b/tests/meshworker/codim_01.cc
index 6ee4edd13b..70c993fec0 100644
--- a/tests/meshworker/codim_01.cc
+++ b/tests/meshworker/codim_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/meshworker/mesh_loop_02.cc b/tests/meshworker/mesh_loop_02.cc
index 234c371f38..07caf8f042 100644
--- a/tests/meshworker/mesh_loop_02.cc
+++ b/tests/meshworker/mesh_loop_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/meshworker/mesh_loop_03.cc b/tests/meshworker/mesh_loop_03.cc
index 1970635fe7..dc55a43dd5 100644
--- a/tests/meshworker/mesh_loop_03.cc
+++ b/tests/meshworker/mesh_loop_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/meshworker/mesh_loop_04.cc b/tests/meshworker/mesh_loop_04.cc
index 78f9621a0b..27d26df70e 100644
--- a/tests/meshworker/mesh_loop_04.cc
+++ b/tests/meshworker/mesh_loop_04.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2022 by the deal.II authors
+ * Copyright (C) 2019 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/mesh_loop_05.cc b/tests/meshworker/mesh_loop_05.cc
index 71a943f48f..59b0dee750 100644
--- a/tests/meshworker/mesh_loop_05.cc
+++ b/tests/meshworker/mesh_loop_05.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2022 by the deal.II authors
+ * Copyright (C) 2019 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/mesh_loop_06.cc b/tests/meshworker/mesh_loop_06.cc
index 0870f08b73..159fd88043 100644
--- a/tests/meshworker/mesh_loop_06.cc
+++ b/tests/meshworker/mesh_loop_06.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2022 by the deal.II authors
+ * Copyright (C) 2019 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/mesh_loop_07.cc b/tests/meshworker/mesh_loop_07.cc
index 8ac056224d..d645fad341 100644
--- a/tests/meshworker/mesh_loop_07.cc
+++ b/tests/meshworker/mesh_loop_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/meshworker/mesh_loop_08.cc b/tests/meshworker/mesh_loop_08.cc
index 24dba1ae0b..14d00c3182 100644
--- a/tests/meshworker/mesh_loop_08.cc
+++ b/tests/meshworker/mesh_loop_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/meshworker/mesh_loop_09a.cc b/tests/meshworker/mesh_loop_09a.cc
index 7260e8180c..9c8ff32b74 100644
--- a/tests/meshworker/mesh_loop_09a.cc
+++ b/tests/meshworker/mesh_loop_09a.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2022 by the deal.II authors
+ * Copyright (C) 2019 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/mesh_loop_09b.cc b/tests/meshworker/mesh_loop_09b.cc
index 9406dddc3f..c15b89cc4b 100644
--- a/tests/meshworker/mesh_loop_09b.cc
+++ b/tests/meshworker/mesh_loop_09b.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2022 by the deal.II authors
+ * Copyright (C) 2019 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/mesh_loop_gmg_01.cc b/tests/meshworker/mesh_loop_gmg_01.cc
index 5c667ad126..4a974b5083 100644
--- a/tests/meshworker/mesh_loop_gmg_01.cc
+++ b/tests/meshworker/mesh_loop_gmg_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/meshworker/mesh_loop_mpi_01.cc b/tests/meshworker/mesh_loop_mpi_01.cc
index 026c10b69e..efc9ca4bac 100644
--- a/tests/meshworker/mesh_loop_mpi_01.cc
+++ b/tests/meshworker/mesh_loop_mpi_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/meshworker/scratch_data_01.cc b/tests/meshworker/scratch_data_01.cc
index 8dff6eb13c..d9713ffdf6 100644
--- a/tests/meshworker/scratch_data_01.cc
+++ b/tests/meshworker/scratch_data_01.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2022 by the deal.II authors
+ * Copyright (C) 2019 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/scratch_data_01_hp.cc b/tests/meshworker/scratch_data_01_hp.cc
index 02e5683a61..f22327ec7d 100644
--- a/tests/meshworker/scratch_data_01_hp.cc
+++ b/tests/meshworker/scratch_data_01_hp.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2019 - 2022 by the deal.II authors
+ * Copyright (C) 2019 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/scratch_data_03.cc b/tests/meshworker/scratch_data_03.cc
index e44782255b..5ca85ac419 100644
--- a/tests/meshworker/scratch_data_03.cc
+++ b/tests/meshworker/scratch_data_03.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2021 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/scratch_data_03_hp.cc b/tests/meshworker/scratch_data_03_hp.cc
index f0cbc1b23f..213ccada39 100644
--- a/tests/meshworker/scratch_data_03_hp.cc
+++ b/tests/meshworker/scratch_data_03_hp.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2022 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/scratch_data_04.cc b/tests/meshworker/scratch_data_04.cc
index f845606db9..4c55a878e3 100644
--- a/tests/meshworker/scratch_data_04.cc
+++ b/tests/meshworker/scratch_data_04.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2021 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/scratch_data_05.cc b/tests/meshworker/scratch_data_05.cc
index 0060a199a3..9a2f5ce431 100644
--- a/tests/meshworker/scratch_data_05.cc
+++ b/tests/meshworker/scratch_data_05.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2021 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/scratch_data_06.cc b/tests/meshworker/scratch_data_06.cc
index 881e301e9f..42fe6545dd 100644
--- a/tests/meshworker/scratch_data_06.cc
+++ b/tests/meshworker/scratch_data_06.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2021 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/scratch_data_07.cc b/tests/meshworker/scratch_data_07.cc
index f8bc52f406..3d5fca1ff5 100644
--- a/tests/meshworker/scratch_data_07.cc
+++ b/tests/meshworker/scratch_data_07.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2021 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/scratch_data_08.cc b/tests/meshworker/scratch_data_08.cc
index 2d907cd3f0..59b83206fd 100644
--- a/tests/meshworker/scratch_data_08.cc
+++ b/tests/meshworker/scratch_data_08.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2021 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/meshworker/step-11-mesh_loop.cc b/tests/meshworker/step-11-mesh_loop.cc
index 89853cfbb4..b29f128998 100644
--- a/tests/meshworker/step-11-mesh_loop.cc
+++ b/tests/meshworker/step-11-mesh_loop.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/meshworker/step-50-mesh_loop.cc b/tests/meshworker/step-50-mesh_loop.cc
index cb3881f38e..334cadf9fd 100644
--- a/tests/meshworker/step-50-mesh_loop.cc
+++ b/tests/meshworker/step-50-mesh_loop.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2022 by the deal.II authors
+ * Copyright (C) 2016 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/metis/metis_01.cc b/tests/metis/metis_01.cc
index 54023a66f1..35406e3b22 100644
--- a/tests/metis/metis_01.cc
+++ b/tests/metis/metis_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/metis/metis_01a.cc b/tests/metis/metis_01a.cc
index 14ab51c1cc..90e773a59a 100644
--- a/tests/metis/metis_01a.cc
+++ b/tests/metis/metis_01a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/metis/metis_02.cc b/tests/metis/metis_02.cc
index c9550d8dfe..195aa1593d 100644
--- a/tests/metis/metis_02.cc
+++ b/tests/metis/metis_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/metis/metis_03.cc b/tests/metis/metis_03.cc
index ce3e6a87fc..c9f85c167c 100644
--- a/tests/metis/metis_03.cc
+++ b/tests/metis/metis_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/metis/metis_05.cc b/tests/metis/metis_05.cc
index 8865449d5f..1fb5576b37 100644
--- a/tests/metis/metis_05.cc
+++ b/tests/metis/metis_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/affine_constraints_get_view_01.cc b/tests/mpi/affine_constraints_get_view_01.cc
index 763a8718f4..19cb8e8e57 100644
--- a/tests/mpi/affine_constraints_get_view_01.cc
+++ b/tests/mpi/affine_constraints_get_view_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/attach_data_01.cc b/tests/mpi/attach_data_01.cc
index cdc8d6d2fe..3a94547d51 100644
--- a/tests/mpi/attach_data_01.cc
+++ b/tests/mpi/attach_data_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/attach_data_02.cc b/tests/mpi/attach_data_02.cc
index 4e2b74cc5a..972e8c37cd 100644
--- a/tests/mpi/attach_data_02.cc
+++ b/tests/mpi/attach_data_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/cell_weights_01_back_and_forth_01.cc b/tests/mpi/cell_weights_01_back_and_forth_01.cc
index dba36f2794..cea67eef87 100644
--- a/tests/mpi/cell_weights_01_back_and_forth_01.cc
+++ b/tests/mpi/cell_weights_01_back_and_forth_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/cell_weights_01_back_and_forth_02.cc b/tests/mpi/cell_weights_01_back_and_forth_02.cc
index e73d3a1433..1703349522 100644
--- a/tests/mpi/cell_weights_01_back_and_forth_02.cc
+++ b/tests/mpi/cell_weights_01_back_and_forth_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/cell_weights_02.cc b/tests/mpi/cell_weights_02.cc
index 1889902f25..1bfedaab37 100644
--- a/tests/mpi/cell_weights_02.cc
+++ b/tests/mpi/cell_weights_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/cell_weights_03.cc b/tests/mpi/cell_weights_03.cc
index d0353f93bc..473cb463a4 100644
--- a/tests/mpi/cell_weights_03.cc
+++ b/tests/mpi/cell_weights_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/cell_weights_04.cc b/tests/mpi/cell_weights_04.cc
index 819c339b56..1a322e8585 100644
--- a/tests/mpi/cell_weights_04.cc
+++ b/tests/mpi/cell_weights_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/cell_weights_05.cc b/tests/mpi/cell_weights_05.cc
index c49902d7c0..daadf38147 100644
--- a/tests/mpi/cell_weights_05.cc
+++ b/tests/mpi/cell_weights_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/cell_weights_06.cc b/tests/mpi/cell_weights_06.cc
index 9295b03957..68e2e75451 100644
--- a/tests/mpi/cell_weights_06.cc
+++ b/tests/mpi/cell_weights_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/communicate_moved_vertices_03.cc b/tests/mpi/communicate_moved_vertices_03.cc
index 1ca1003151..24f8f14729 100644
--- a/tests/mpi/communicate_moved_vertices_03.cc
+++ b/tests/mpi/communicate_moved_vertices_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/compute_index_owner_01.cc b/tests/mpi/compute_index_owner_01.cc
index 7eaf5f3f9a..c10af65add 100644
--- a/tests/mpi/compute_index_owner_01.cc
+++ b/tests/mpi/compute_index_owner_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2022 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/compute_mean_value_01.cc b/tests/mpi/compute_mean_value_01.cc
index 913befae61..f73fea7cdd 100644
--- a/tests/mpi/compute_mean_value_01.cc
+++ b/tests/mpi/compute_mean_value_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/compute_mean_value_02.cc b/tests/mpi/compute_mean_value_02.cc
index c1a09beec3..7dc41401b6 100644
--- a/tests/mpi/compute_mean_value_02.cc
+++ b/tests/mpi/compute_mean_value_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/condense_01.cc b/tests/mpi/condense_01.cc
index 34047262bc..119074a60a 100644
--- a/tests/mpi/condense_01.cc
+++ b/tests/mpi/condense_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/constraint_matrix_condense_01.cc b/tests/mpi/constraint_matrix_condense_01.cc
index bf3cbed9a8..853c6f1a83 100644
--- a/tests/mpi/constraint_matrix_condense_01.cc
+++ b/tests/mpi/constraint_matrix_condense_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/constraint_matrix_set_zero_01.cc b/tests/mpi/constraint_matrix_set_zero_01.cc
index 58f553672e..1f696148ef 100644
--- a/tests/mpi/constraint_matrix_set_zero_01.cc
+++ b/tests/mpi/constraint_matrix_set_zero_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/constraint_matrix_set_zero_02.cc b/tests/mpi/constraint_matrix_set_zero_02.cc
index 6d011d934a..8db1d95436 100644
--- a/tests/mpi/constraint_matrix_set_zero_02.cc
+++ b/tests/mpi/constraint_matrix_set_zero_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/constraint_matrix_trilinos_bug.cc b/tests/mpi/constraint_matrix_trilinos_bug.cc
index 7838f1a28e..ab6dafcb8b 100644
--- a/tests/mpi/constraint_matrix_trilinos_bug.cc
+++ b/tests/mpi/constraint_matrix_trilinos_bug.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/constraints_consistent_01.cc b/tests/mpi/constraints_consistent_01.cc
index 0210192175..2dd62121e3 100644
--- a/tests/mpi/constraints_consistent_01.cc
+++ b/tests/mpi/constraints_consistent_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/constraints_crash_01.cc b/tests/mpi/constraints_crash_01.cc
index 641ed95647..7f1548e544 100644
--- a/tests/mpi/constraints_crash_01.cc
+++ b/tests/mpi/constraints_crash_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/constraints_crash_02.cc b/tests/mpi/constraints_crash_02.cc
index c0c05a960a..c12ab380c6 100644
--- a/tests/mpi/constraints_crash_02.cc
+++ b/tests/mpi/constraints_crash_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/constraints_crash_03.cc b/tests/mpi/constraints_crash_03.cc
index 7b4ac1e2a5..2319f21051 100644
--- a/tests/mpi/constraints_crash_03.cc
+++ b/tests/mpi/constraints_crash_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/crash_05.cc b/tests/mpi/crash_05.cc
index f70d3f396e..de6297931d 100644
--- a/tests/mpi/crash_05.cc
+++ b/tests/mpi/crash_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2018 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/create_mpi_datatype_01.cc b/tests/mpi/create_mpi_datatype_01.cc
index 61e315775a..a138621d32 100644
--- a/tests/mpi/create_mpi_datatype_01.cc
+++ b/tests/mpi/create_mpi_datatype_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/data_out_faces_01.cc b/tests/mpi/data_out_faces_01.cc
index e0f78f77d3..410e38f004 100644
--- a/tests/mpi/data_out_faces_01.cc
+++ b/tests/mpi/data_out_faces_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/data_out_faces_02.cc b/tests/mpi/data_out_faces_02.cc
index cc68bd35f0..4446773c89 100644
--- a/tests/mpi/data_out_faces_02.cc
+++ b/tests/mpi/data_out_faces_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/data_out_hdf5_01.cc b/tests/mpi/data_out_hdf5_01.cc
index 1dd4bb881d..83c25f2d56 100644
--- a/tests/mpi/data_out_hdf5_01.cc
+++ b/tests/mpi/data_out_hdf5_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/derivative_approximation_01.cc b/tests/mpi/derivative_approximation_01.cc
index 74986da2cb..f3193fc0be 100644
--- a/tests/mpi/derivative_approximation_01.cc
+++ b/tests/mpi/derivative_approximation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/derivative_approximation_02.cc b/tests/mpi/derivative_approximation_02.cc
index 97ae07639f..a33dcf9aa7 100644
--- a/tests/mpi/derivative_approximation_02.cc
+++ b/tests/mpi/derivative_approximation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/distort_random_02.cc b/tests/mpi/distort_random_02.cc
index 688127002b..dd5ea4e145 100644
--- a/tests/mpi/distort_random_02.cc
+++ b/tests/mpi/distort_random_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/distribute_flux_sparsity_pattern.cc b/tests/mpi/distribute_flux_sparsity_pattern.cc
index 36ec73ea5f..bb1d308784 100644
--- a/tests/mpi/distribute_flux_sparsity_pattern.cc
+++ b/tests/mpi/distribute_flux_sparsity_pattern.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/extract_boundary_dofs.cc b/tests/mpi/extract_boundary_dofs.cc
index 7b15092ee0..6288c58e58 100644
--- a/tests/mpi/extract_boundary_dofs.cc
+++ b/tests/mpi/extract_boundary_dofs.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/extract_constant_modes_01.cc b/tests/mpi/extract_constant_modes_01.cc
index 3cd58ced11..96501bba36 100644
--- a/tests/mpi/extract_constant_modes_01.cc
+++ b/tests/mpi/extract_constant_modes_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/extract_constant_modes_02.cc b/tests/mpi/extract_constant_modes_02.cc
index 1698ed8138..5b6a3a4d91 100644
--- a/tests/mpi/extract_constant_modes_02.cc
+++ b/tests/mpi/extract_constant_modes_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/extract_constant_modes_03.cc b/tests/mpi/extract_constant_modes_03.cc
index 4321aec8e2..9a39c93946 100644
--- a/tests/mpi/extract_constant_modes_03.cc
+++ b/tests/mpi/extract_constant_modes_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/extract_locally_active_dofs.cc b/tests/mpi/extract_locally_active_dofs.cc
index 3b00362782..e0018d1fba 100644
--- a/tests/mpi/extract_locally_active_dofs.cc
+++ b/tests/mpi/extract_locally_active_dofs.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/extract_locally_active_level_dofs.cc b/tests/mpi/extract_locally_active_level_dofs.cc
index fb72cd3b92..5357466be9 100644
--- a/tests/mpi/extract_locally_active_level_dofs.cc
+++ b/tests/mpi/extract_locally_active_level_dofs.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_field_function_01.cc b/tests/mpi/fe_field_function_01.cc
index 40d4092d04..6327516525 100644
--- a/tests/mpi/fe_field_function_01.cc
+++ b/tests/mpi/fe_field_function_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_field_function_02.cc b/tests/mpi/fe_field_function_02.cc
index da6244d5aa..4c9aa646c1 100644
--- a/tests/mpi/fe_field_function_02.cc
+++ b/tests/mpi/fe_field_function_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_field_function_03.cc b/tests/mpi/fe_field_function_03.cc
index 008e13bb3d..f46e8cd6f8 100644
--- a/tests/mpi/fe_field_function_03.cc
+++ b/tests/mpi/fe_field_function_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_tools_extrapolate_01.cc b/tests/mpi/fe_tools_extrapolate_01.cc
index 2951492149..3b88cbe28f 100644
--- a/tests/mpi/fe_tools_extrapolate_01.cc
+++ b/tests/mpi/fe_tools_extrapolate_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_tools_extrapolate_02.cc b/tests/mpi/fe_tools_extrapolate_02.cc
index d779f0e04a..5fadb126a3 100644
--- a/tests/mpi/fe_tools_extrapolate_02.cc
+++ b/tests/mpi/fe_tools_extrapolate_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_tools_extrapolate_03.cc b/tests/mpi/fe_tools_extrapolate_03.cc
index 127419c653..c690691cfa 100644
--- a/tests/mpi/fe_tools_extrapolate_03.cc
+++ b/tests/mpi/fe_tools_extrapolate_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_tools_extrapolate_04.cc b/tests/mpi/fe_tools_extrapolate_04.cc
index 26ff70c7e5..786c0bb7a1 100644
--- a/tests/mpi/fe_tools_extrapolate_04.cc
+++ b/tests/mpi/fe_tools_extrapolate_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_tools_extrapolate_05.cc b/tests/mpi/fe_tools_extrapolate_05.cc
index 7233aaea0f..25ef9dbbf2 100644
--- a/tests/mpi/fe_tools_extrapolate_05.cc
+++ b/tests/mpi/fe_tools_extrapolate_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_tools_extrapolate_06.cc b/tests/mpi/fe_tools_extrapolate_06.cc
index 9e3b28770d..d86c3456b6 100644
--- a/tests/mpi/fe_tools_extrapolate_06.cc
+++ b/tests/mpi/fe_tools_extrapolate_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/fe_tools_extrapolate_common.h b/tests/mpi/fe_tools_extrapolate_common.h
index 92e138bae4..43a102cd08 100644
--- a/tests/mpi/fe_tools_extrapolate_common.h
+++ b/tests/mpi/fe_tools_extrapolate_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/flux_edge_01.cc b/tests/mpi/flux_edge_01.cc
index e52dfb60aa..16ba4dc5a8 100644
--- a/tests/mpi/flux_edge_01.cc
+++ b/tests/mpi/flux_edge_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/has_hanging_nodes.cc b/tests/mpi/has_hanging_nodes.cc
index 10e39e6ab0..a72445503c 100644
--- a/tests/mpi/has_hanging_nodes.cc
+++ b/tests/mpi/has_hanging_nodes.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_cell_weights_03.cc b/tests/mpi/hp_cell_weights_03.cc
index c59fbff275..5baccd0bd0 100644
--- a/tests/mpi/hp_cell_weights_03.cc
+++ b/tests/mpi/hp_cell_weights_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_cell_weights_04.cc b/tests/mpi/hp_cell_weights_04.cc
index a5d98a3066..a3dc023c32 100644
--- a/tests/mpi/hp_cell_weights_04.cc
+++ b/tests/mpi/hp_cell_weights_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_constraints_consistent_01.cc b/tests/mpi/hp_constraints_consistent_01.cc
index f4dbc43a2d..f1beedebf1 100644
--- a/tests/mpi/hp_constraints_consistent_01.cc
+++ b/tests/mpi/hp_constraints_consistent_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_constraints_consistent_02.cc b/tests/mpi/hp_constraints_consistent_02.cc
index aee357f3b2..d1d8cf1447 100644
--- a/tests/mpi/hp_constraints_consistent_02.cc
+++ b/tests/mpi/hp_constraints_consistent_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_constraints_consistent_03.cc b/tests/mpi/hp_constraints_consistent_03.cc
index 0f8efa4d82..7dc52ff170 100644
--- a/tests/mpi/hp_constraints_consistent_03.cc
+++ b/tests/mpi/hp_constraints_consistent_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_hanging_node_constraints_01.cc b/tests/mpi/hp_hanging_node_constraints_01.cc
index 5e57b8cb12..33007150ab 100644
--- a/tests/mpi/hp_hanging_node_constraints_01.cc
+++ b/tests/mpi/hp_hanging_node_constraints_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_hanging_node_constraints_02.cc b/tests/mpi/hp_hanging_node_constraints_02.cc
index 4f59d415bd..948bc7e9ef 100644
--- a/tests/mpi/hp_hanging_node_constraints_02.cc
+++ b/tests/mpi/hp_hanging_node_constraints_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_integrate_difference.cc b/tests/mpi/hp_integrate_difference.cc
index 73de23c74a..6c80ce389d 100644
--- a/tests/mpi/hp_integrate_difference.cc
+++ b/tests/mpi/hp_integrate_difference.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_step-4.cc b/tests/mpi/hp_step-4.cc
index 302e532b16..342eab703c 100644
--- a/tests/mpi/hp_step-4.cc
+++ b/tests/mpi/hp_step-4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_step-40.cc b/tests/mpi/hp_step-40.cc
index 580167978a..9e11895ade 100644
--- a/tests/mpi/hp_step-40.cc
+++ b/tests/mpi/hp_step-40.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/hp_step-40_variable_01.cc b/tests/mpi/hp_step-40_variable_01.cc
index 86350ed954..6277957cd4 100644
--- a/tests/mpi/hp_step-40_variable_01.cc
+++ b/tests/mpi/hp_step-40_variable_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/integrate_difference.cc b/tests/mpi/integrate_difference.cc
index be90b3d78e..adac43d248 100644
--- a/tests/mpi/integrate_difference.cc
+++ b/tests/mpi/integrate_difference.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/interpolate_01.cc b/tests/mpi/interpolate_01.cc
index 17b2237f0b..ad8fb1a9b5 100644
--- a/tests/mpi/interpolate_01.cc
+++ b/tests/mpi/interpolate_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/interpolate_02.cc b/tests/mpi/interpolate_02.cc
index 878a6b7daa..f78ea580f7 100644
--- a/tests/mpi/interpolate_02.cc
+++ b/tests/mpi/interpolate_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/interpolate_04.cc b/tests/mpi/interpolate_04.cc
index 049fe7230d..6c134db5fe 100644
--- a/tests/mpi/interpolate_04.cc
+++ b/tests/mpi/interpolate_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/interpolate_05.cc b/tests/mpi/interpolate_05.cc
index 66d05b816e..5a71b7d459 100644
--- a/tests/mpi/interpolate_05.cc
+++ b/tests/mpi/interpolate_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/interpolate_to_different_mesh_01.cc b/tests/mpi/interpolate_to_different_mesh_01.cc
index a2cf0612e8..e09975f303 100644
--- a/tests/mpi/interpolate_to_different_mesh_01.cc
+++ b/tests/mpi/interpolate_to_different_mesh_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/interpolate_to_different_mesh_02.cc b/tests/mpi/interpolate_to_different_mesh_02.cc
index 96cd3111ce..ac51d6e16e 100644
--- a/tests/mpi/interpolate_to_different_mesh_02.cc
+++ b/tests/mpi/interpolate_to_different_mesh_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/is_mpi_type.cc b/tests/mpi/is_mpi_type.cc
index 65afca01a6..cd2f91ef07 100644
--- a/tests/mpi/is_mpi_type.cc
+++ b/tests/mpi/is_mpi_type.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/local_size.cc b/tests/mpi/local_size.cc
index aa0ba12f4c..d07085d35c 100644
--- a/tests/mpi/local_size.cc
+++ b/tests/mpi/local_size.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/make_zero_boundary_values.cc b/tests/mpi/make_zero_boundary_values.cc
index 29ddfc078c..64f059290e 100644
--- a/tests/mpi/make_zero_boundary_values.cc
+++ b/tests/mpi/make_zero_boundary_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/map_dofs_to_support_points.cc b/tests/mpi/map_dofs_to_support_points.cc
index 8293fa7e0b..96dccefc07 100644
--- a/tests/mpi/map_dofs_to_support_points.cc
+++ b/tests/mpi/map_dofs_to_support_points.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/mesh_worker_matrix_01.cc b/tests/mpi/mesh_worker_matrix_01.cc
index ad9749fd1d..cc54673e62 100644
--- a/tests/mpi/mesh_worker_matrix_01.cc
+++ b/tests/mpi/mesh_worker_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/mg_01.cc b/tests/mpi/mg_01.cc
index 18198f36c6..b340861e3e 100644
--- a/tests/mpi/mg_01.cc
+++ b/tests/mpi/mg_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/mg_05.cc b/tests/mpi/mg_05.cc
index 3e24516cff..40910f4ec4 100644
--- a/tests/mpi/mg_05.cc
+++ b/tests/mpi/mg_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/mg_06.cc b/tests/mpi/mg_06.cc
index a057992d3a..8654b62226 100644
--- a/tests/mpi/mg_06.cc
+++ b/tests/mpi/mg_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/mg_ghost_dofs_periodic_01.cc b/tests/mpi/mg_ghost_dofs_periodic_01.cc
index 33eb4867e7..948a56e4da 100644
--- a/tests/mpi/mg_ghost_dofs_periodic_01.cc
+++ b/tests/mpi/mg_ghost_dofs_periodic_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/mg_ghost_dofs_periodic_02.cc b/tests/mpi/mg_ghost_dofs_periodic_02.cc
index 6dbc70117c..45469f163c 100644
--- a/tests/mpi/mg_ghost_dofs_periodic_02.cc
+++ b/tests/mpi/mg_ghost_dofs_periodic_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/mg_ghost_dofs_periodic_03.cc b/tests/mpi/mg_ghost_dofs_periodic_03.cc
index 54bf6acea9..fbbf09bd91 100644
--- a/tests/mpi/mg_ghost_dofs_periodic_03.cc
+++ b/tests/mpi/mg_ghost_dofs_periodic_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/mg_ghost_dofs_periodic_04.cc b/tests/mpi/mg_ghost_dofs_periodic_04.cc
index 453f4b6d6c..e946539ed9 100644
--- a/tests/mpi/mg_ghost_dofs_periodic_04.cc
+++ b/tests/mpi/mg_ghost_dofs_periodic_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2022 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/mg_ghost_layer_periodic.cc b/tests/mpi/mg_ghost_layer_periodic.cc
index 88e4b65a7d..5dc5a31b94 100644
--- a/tests/mpi/mg_ghost_layer_periodic.cc
+++ b/tests/mpi/mg_ghost_layer_periodic.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/multigrid_adaptive.cc b/tests/mpi/multigrid_adaptive.cc
index 285001e7ee..11275a9361 100644
--- a/tests/mpi/multigrid_adaptive.cc
+++ b/tests/mpi/multigrid_adaptive.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/multigrid_uniform.cc b/tests/mpi/multigrid_uniform.cc
index dfa71dfa31..bcbfa8ed67 100644
--- a/tests/mpi/multigrid_uniform.cc
+++ b/tests/mpi/multigrid_uniform.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/no_flux_constraints.cc b/tests/mpi/no_flux_constraints.cc
index b0085ed94b..303726e214 100644
--- a/tests/mpi/no_flux_constraints.cc
+++ b/tests/mpi/no_flux_constraints.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/no_flux_constraints_02.cc b/tests/mpi/no_flux_constraints_02.cc
index 6b0528d7a8..c50fb5aeae 100644
--- a/tests/mpi/no_flux_constraints_02.cc
+++ b/tests/mpi/no_flux_constraints_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/no_flux_constraints_03.cc b/tests/mpi/no_flux_constraints_03.cc
index 186ea9c860..29362eecdb 100644
--- a/tests/mpi/no_flux_constraints_03.cc
+++ b/tests/mpi/no_flux_constraints_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/normal_flux_constraints.cc b/tests/mpi/normal_flux_constraints.cc
index 48b0e5da2c..9fffdbe5eb 100644
--- a/tests/mpi/normal_flux_constraints.cc
+++ b/tests/mpi/normal_flux_constraints.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_2d_constraintmatrix_01.cc b/tests/mpi/p4est_2d_constraintmatrix_01.cc
index 1b164b01e9..5a844e0e97 100644
--- a/tests/mpi/p4est_2d_constraintmatrix_01.cc
+++ b/tests/mpi/p4est_2d_constraintmatrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_2d_constraintmatrix_02.cc b/tests/mpi/p4est_2d_constraintmatrix_02.cc
index 44039ce330..16ce33f02d 100644
--- a/tests/mpi/p4est_2d_constraintmatrix_02.cc
+++ b/tests/mpi/p4est_2d_constraintmatrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_2d_constraintmatrix_03.cc b/tests/mpi/p4est_2d_constraintmatrix_03.cc
index 9d8468bdf2..cc214c638f 100644
--- a/tests/mpi/p4est_2d_constraintmatrix_03.cc
+++ b/tests/mpi/p4est_2d_constraintmatrix_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_2d_constraintmatrix_04.cc b/tests/mpi/p4est_2d_constraintmatrix_04.cc
index 94588d0362..5ab0e7ea0e 100644
--- a/tests/mpi/p4est_2d_constraintmatrix_04.cc
+++ b/tests/mpi/p4est_2d_constraintmatrix_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_2d_constraintmatrix_05.cc b/tests/mpi/p4est_2d_constraintmatrix_05.cc
index 963709e7b0..9f3dbf1c72 100644
--- a/tests/mpi/p4est_2d_constraintmatrix_05.cc
+++ b/tests/mpi/p4est_2d_constraintmatrix_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2018 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_2d_dofhandler_04.cc b/tests/mpi/p4est_2d_dofhandler_04.cc
index c675108cbe..be43451ec4 100644
--- a/tests/mpi/p4est_2d_dofhandler_04.cc
+++ b/tests/mpi/p4est_2d_dofhandler_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_2d_renumber_01.cc b/tests/mpi/p4est_2d_renumber_01.cc
index 0ce4743a91..af158f634a 100644
--- a/tests/mpi/p4est_2d_renumber_01.cc
+++ b/tests/mpi/p4est_2d_renumber_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_2d_renumber_02.cc b/tests/mpi/p4est_2d_renumber_02.cc
index 6626fddd92..2fc9129304 100644
--- a/tests/mpi/p4est_2d_renumber_02.cc
+++ b/tests/mpi/p4est_2d_renumber_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_3d_constraintmatrix_01.cc b/tests/mpi/p4est_3d_constraintmatrix_01.cc
index ef3b8c6706..af783712fa 100644
--- a/tests/mpi/p4est_3d_constraintmatrix_01.cc
+++ b/tests/mpi/p4est_3d_constraintmatrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_3d_constraintmatrix_02.cc b/tests/mpi/p4est_3d_constraintmatrix_02.cc
index b52e4e148e..73650a085b 100644
--- a/tests/mpi/p4est_3d_constraintmatrix_02.cc
+++ b/tests/mpi/p4est_3d_constraintmatrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_3d_constraintmatrix_03.cc b/tests/mpi/p4est_3d_constraintmatrix_03.cc
index 5cf98229d9..081ea86887 100644
--- a/tests/mpi/p4est_3d_constraintmatrix_03.cc
+++ b/tests/mpi/p4est_3d_constraintmatrix_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_3d_constraintmatrix_04.cc b/tests/mpi/p4est_3d_constraintmatrix_04.cc
index b7955c5433..4e72ca9823 100644
--- a/tests/mpi/p4est_3d_constraintmatrix_04.cc
+++ b/tests/mpi/p4est_3d_constraintmatrix_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_save_02.cc b/tests/mpi/p4est_save_02.cc
index fea3424368..a003559207 100644
--- a/tests/mpi/p4est_save_02.cc
+++ b/tests/mpi/p4est_save_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2019 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_save_03.cc b/tests/mpi/p4est_save_03.cc
index 84e21e3f5f..a332b7c5a9 100644
--- a/tests/mpi/p4est_save_03.cc
+++ b/tests/mpi/p4est_save_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_save_04.cc b/tests/mpi/p4est_save_04.cc
index 9a13ceebb9..f2857b0439 100644
--- a/tests/mpi/p4est_save_04.cc
+++ b/tests/mpi/p4est_save_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2019 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_save_05.cc b/tests/mpi/p4est_save_05.cc
index ee876f6889..579a8957b0 100644
--- a/tests/mpi/p4est_save_05.cc
+++ b/tests/mpi/p4est_save_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/p4est_save_07.cc b/tests/mpi/p4est_save_07.cc
index 3a396e266f..24c209e69a 100644
--- a/tests/mpi/p4est_save_07.cc
+++ b/tests/mpi/p4est_save_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2019 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_block_vector_05.cc b/tests/mpi/parallel_block_vector_05.cc
index 68c51b2515..be4012cd25 100644
--- a/tests/mpi/parallel_block_vector_05.cc
+++ b/tests/mpi/parallel_block_vector_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_block_vector_06.cc b/tests/mpi/parallel_block_vector_06.cc
index f6cae836b0..0c1adf1974 100644
--- a/tests/mpi/parallel_block_vector_06.cc
+++ b/tests/mpi/parallel_block_vector_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_block_vector_07.cc b/tests/mpi/parallel_block_vector_07.cc
index 1e85141af0..ceca67d122 100644
--- a/tests/mpi/parallel_block_vector_07.cc
+++ b/tests/mpi/parallel_block_vector_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_block_vector_08.cc b/tests/mpi/parallel_block_vector_08.cc
index cbc1489fee..d65839e7c2 100644
--- a/tests/mpi/parallel_block_vector_08.cc
+++ b/tests/mpi/parallel_block_vector_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_block_vector_09.cc b/tests/mpi/parallel_block_vector_09.cc
index f8b63c0e28..6a819cd227 100644
--- a/tests/mpi/parallel_block_vector_09.cc
+++ b/tests/mpi/parallel_block_vector_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_block_vector_10.cc b/tests/mpi/parallel_block_vector_10.cc
index 92f99944c0..503ab6e9fd 100644
--- a/tests/mpi/parallel_block_vector_10.cc
+++ b/tests/mpi/parallel_block_vector_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_block_vector_11.cc b/tests/mpi/parallel_block_vector_11.cc
index 9bc0d77ac3..6690e9a5ee 100644
--- a/tests/mpi/parallel_block_vector_11.cc
+++ b/tests/mpi/parallel_block_vector_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_block_vector_12.cc b/tests/mpi/parallel_block_vector_12.cc
index 25958e551f..d917e17bd7 100644
--- a/tests/mpi/parallel_block_vector_12.cc
+++ b/tests/mpi/parallel_block_vector_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_partitioner_device_08.cc b/tests/mpi/parallel_partitioner_device_08.cc
index 3321338d5d..9f97a46724 100644
--- a/tests/mpi/parallel_partitioner_device_08.cc
+++ b/tests/mpi/parallel_partitioner_device_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2023 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_vector_11.cc b/tests/mpi/parallel_vector_11.cc
index c2decd7c35..3990b00bd0 100644
--- a/tests/mpi/parallel_vector_11.cc
+++ b/tests/mpi/parallel_vector_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_vector_12.cc b/tests/mpi/parallel_vector_12.cc
index df533becf7..716388ad89 100644
--- a/tests/mpi/parallel_vector_12.cc
+++ b/tests/mpi/parallel_vector_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2018 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_vector_21.cc b/tests/mpi/parallel_vector_21.cc
index 007fbd31b3..ceb5b1917a 100644
--- a/tests/mpi/parallel_vector_21.cc
+++ b/tests/mpi/parallel_vector_21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_vector_back_interpolate.cc b/tests/mpi/parallel_vector_back_interpolate.cc
index 3301a71ea2..8a0779ab7b 100644
--- a/tests/mpi/parallel_vector_back_interpolate.cc
+++ b/tests/mpi/parallel_vector_back_interpolate.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2018 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_vector_back_interpolate_02.cc b/tests/mpi/parallel_vector_back_interpolate_02.cc
index 6824b08431..b44f760347 100644
--- a/tests/mpi/parallel_vector_back_interpolate_02.cc
+++ b/tests/mpi/parallel_vector_back_interpolate_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/parallel_vector_interpolate.cc b/tests/mpi/parallel_vector_interpolate.cc
index 675bad8c7d..f0d11d1811 100644
--- a/tests/mpi/parallel_vector_interpolate.cc
+++ b/tests/mpi/parallel_vector_interpolate.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2020 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/periodic_neighbor_01.cc b/tests/mpi/periodic_neighbor_01.cc
index 1d47fec5f3..a037de4f01 100644
--- a/tests/mpi/periodic_neighbor_01.cc
+++ b/tests/mpi/periodic_neighbor_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2021 by the deal.II authors
+// Copyright (C) 2001 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/periodicity_01.cc b/tests/mpi/periodicity_01.cc
index cfdd06b3f7..fa865a6e49 100644
--- a/tests/mpi/periodicity_01.cc
+++ b/tests/mpi/periodicity_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2001 - 2022 by the deal.II authors
+// Copyright (C) 2001 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/periodicity_02.cc b/tests/mpi/periodicity_02.cc
index 87c71fbdff..63b57216f9 100644
--- a/tests/mpi/periodicity_02.cc
+++ b/tests/mpi/periodicity_02.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2008 - 2023 by the deal.II authors
+ * Copyright (C) 2008 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/mpi/periodicity_03.cc b/tests/mpi/periodicity_03.cc
index cd28e4d590..1c5fffc9ff 100644
--- a/tests/mpi/periodicity_03.cc
+++ b/tests/mpi/periodicity_03.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2008 - 2023 by the deal.II authors
+ * Copyright (C) 2008 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/mpi/periodicity_04.cc b/tests/mpi/periodicity_04.cc
index d1f2385d29..e2cabd51b3 100644
--- a/tests/mpi/periodicity_04.cc
+++ b/tests/mpi/periodicity_04.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2008 - 2022 by the deal.II authors
+ * Copyright (C) 2008 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/mpi/periodicity_06.cc b/tests/mpi/periodicity_06.cc
index e8d82b8492..68ea03a508 100644
--- a/tests/mpi/periodicity_06.cc
+++ b/tests/mpi/periodicity_06.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2022 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/mpi/periodicity_07.cc b/tests/mpi/periodicity_07.cc
index cec4197d50..0977d37d8b 100644
--- a/tests/mpi/periodicity_07.cc
+++ b/tests/mpi/periodicity_07.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2022 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/mpi/periodicity_08.cc b/tests/mpi/periodicity_08.cc
index fe7224d0cd..7d923942f1 100644
--- a/tests/mpi/periodicity_08.cc
+++ b/tests/mpi/periodicity_08.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2018 - 2020 by the deal.II authors
+ * Copyright (C) 2018 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/mpi/petsc_01.cc b/tests/mpi/petsc_01.cc
index d614d6d36c..681f468fdb 100644
--- a/tests/mpi/petsc_01.cc
+++ b/tests/mpi/petsc_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/petsc_02.cc b/tests/mpi/petsc_02.cc
index c6bb98137c..f34efc1367 100644
--- a/tests/mpi/petsc_02.cc
+++ b/tests/mpi/petsc_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/petsc_03.cc b/tests/mpi/petsc_03.cc
index 32c2783c67..71eae7f0bf 100644
--- a/tests/mpi/petsc_03.cc
+++ b/tests/mpi/petsc_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/petsc_bug_ghost_vector_01.cc b/tests/mpi/petsc_bug_ghost_vector_01.cc
index 88fa8107cd..5d4aa9d2ad 100644
--- a/tests/mpi/petsc_bug_ghost_vector_01.cc
+++ b/tests/mpi/petsc_bug_ghost_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/petsc_distribute_01.cc b/tests/mpi/petsc_distribute_01.cc
index c7852027cd..2140098ff2 100644
--- a/tests/mpi/petsc_distribute_01.cc
+++ b/tests/mpi/petsc_distribute_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/petsc_distribute_01_block.cc b/tests/mpi/petsc_distribute_01_block.cc
index fadb0247ef..8b0c799fee 100644
--- a/tests/mpi/petsc_distribute_01_block.cc
+++ b/tests/mpi/petsc_distribute_01_block.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/petsc_distribute_01_inhomogenous.cc b/tests/mpi/petsc_distribute_01_inhomogenous.cc
index 83db0868ba..8a5567d4e6 100644
--- a/tests/mpi/petsc_distribute_01_inhomogenous.cc
+++ b/tests/mpi/petsc_distribute_01_inhomogenous.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/petsc_locally_owned_elements.cc b/tests/mpi/petsc_locally_owned_elements.cc
index 1cb524201a..07fb05681a 100644
--- a/tests/mpi/petsc_locally_owned_elements.cc
+++ b/tests/mpi/petsc_locally_owned_elements.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/petsc_step-27.cc b/tests/mpi/petsc_step-27.cc
index a080f5ad36..14c63fa3ab 100644
--- a/tests/mpi/petsc_step-27.cc
+++ b/tests/mpi/petsc_step-27.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2006 - 2021 by the deal.II authors
+ * Copyright (C) 2006 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/mpi/project_bv_div_conf.cc b/tests/mpi/project_bv_div_conf.cc
index c4e9085fd6..316bf112c4 100644
--- a/tests/mpi/project_bv_div_conf.cc
+++ b/tests/mpi/project_bv_div_conf.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/refine_and_coarsen_fixed_fraction_08.cc b/tests/mpi/refine_and_coarsen_fixed_fraction_08.cc
index 61fdaed947..0942ff910f 100644
--- a/tests/mpi/refine_and_coarsen_fixed_fraction_08.cc
+++ b/tests/mpi/refine_and_coarsen_fixed_fraction_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/refine_and_coarsen_fixed_fraction_09.cc b/tests/mpi/refine_and_coarsen_fixed_fraction_09.cc
index 529d29ecd9..3739fa8f46 100644
--- a/tests/mpi/refine_and_coarsen_fixed_fraction_09.cc
+++ b/tests/mpi/refine_and_coarsen_fixed_fraction_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/refine_and_coarsen_fixed_number_06.cc b/tests/mpi/refine_and_coarsen_fixed_number_06.cc
index a734b190df..0d1351800a 100644
--- a/tests/mpi/refine_and_coarsen_fixed_number_06.cc
+++ b/tests/mpi/refine_and_coarsen_fixed_number_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/refine_and_coarsen_fixed_number_08.cc b/tests/mpi/refine_and_coarsen_fixed_number_08.cc
index 1aa3a41383..513fa7628b 100644
--- a/tests/mpi/refine_and_coarsen_fixed_number_08.cc
+++ b/tests/mpi/refine_and_coarsen_fixed_number_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/renumber_cuthill_mckee.cc b/tests/mpi/renumber_cuthill_mckee.cc
index 14a76a13da..985b90b755 100644
--- a/tests/mpi/renumber_cuthill_mckee.cc
+++ b/tests/mpi/renumber_cuthill_mckee.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/renumber_cuthill_mckee_02.cc b/tests/mpi/renumber_cuthill_mckee_02.cc
index 57f3ef5f3e..303abcfde9 100644
--- a/tests/mpi/renumber_cuthill_mckee_02.cc
+++ b/tests/mpi/renumber_cuthill_mckee_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/repartition_02.cc b/tests/mpi/repartition_02.cc
index 307fab5a81..5ef5d3f2f5 100644
--- a/tests/mpi/repartition_02.cc
+++ b/tests/mpi/repartition_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/simple_mpi_01.cc b/tests/mpi/simple_mpi_01.cc
index 2be37ac9a4..aca37e6005 100644
--- a/tests/mpi/simple_mpi_01.cc
+++ b/tests/mpi/simple_mpi_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/solution_transfer_01.cc b/tests/mpi/solution_transfer_01.cc
index f869a6eeb4..2f5f975d93 100644
--- a/tests/mpi/solution_transfer_01.cc
+++ b/tests/mpi/solution_transfer_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/solution_transfer_04.cc b/tests/mpi/solution_transfer_04.cc
index 6706f12a76..511f31eb7e 100644
--- a/tests/mpi/solution_transfer_04.cc
+++ b/tests/mpi/solution_transfer_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/solution_transfer_05.cc b/tests/mpi/solution_transfer_05.cc
index 347f76359b..63d53ec1c0 100644
--- a/tests/mpi/solution_transfer_05.cc
+++ b/tests/mpi/solution_transfer_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/step-39-block.cc b/tests/mpi/step-39-block.cc
index f644c7eafd..72c8d75bdb 100644
--- a/tests/mpi/step-39-block.cc
+++ b/tests/mpi/step-39-block.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/step-39.cc b/tests/mpi/step-39.cc
index 4d9cb893cb..42d81e86c3 100644
--- a/tests/mpi/step-39.cc
+++ b/tests/mpi/step-39.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/step-40.cc b/tests/mpi/step-40.cc
index 7f53800102..7e5a29c75b 100644
--- a/tests/mpi/step-40.cc
+++ b/tests/mpi/step-40.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/step-40_cuthill_mckee.cc b/tests/mpi/step-40_cuthill_mckee.cc
index 333632aab5..8e6802cd40 100644
--- a/tests/mpi/step-40_cuthill_mckee.cc
+++ b/tests/mpi/step-40_cuthill_mckee.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/step-40_cuthill_mckee_MPI-subset.cc b/tests/mpi/step-40_cuthill_mckee_MPI-subset.cc
index 528e85f86e..b5bae2cf8a 100644
--- a/tests/mpi/step-40_cuthill_mckee_MPI-subset.cc
+++ b/tests/mpi/step-40_cuthill_mckee_MPI-subset.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2022 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/step-40_direct_solver.cc b/tests/mpi/step-40_direct_solver.cc
index fcddcb4ea4..afe5960ca2 100644
--- a/tests/mpi/step-40_direct_solver.cc
+++ b/tests/mpi/step-40_direct_solver.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/tria_signals_06.cc b/tests/mpi/tria_signals_06.cc
index 827c8a3d9e..b2fa0e2dcf 100644
--- a/tests/mpi/tria_signals_06.cc
+++ b/tests/mpi/tria_signals_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_distribute_01.cc b/tests/mpi/trilinos_distribute_01.cc
index 4a00c710eb..d780b7a46a 100644
--- a/tests/mpi/trilinos_distribute_01.cc
+++ b/tests/mpi/trilinos_distribute_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_distribute_01_block.cc b/tests/mpi/trilinos_distribute_01_block.cc
index 184712677e..5955e90cc3 100644
--- a/tests/mpi/trilinos_distribute_01_block.cc
+++ b/tests/mpi/trilinos_distribute_01_block.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_distribute_01_inhomogenous.cc b/tests/mpi/trilinos_distribute_01_inhomogenous.cc
index 0936fa27bf..3ba7104a0d 100644
--- a/tests/mpi/trilinos_distribute_01_inhomogenous.cc
+++ b/tests/mpi/trilinos_distribute_01_inhomogenous.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_distribute_03.cc b/tests/mpi/trilinos_distribute_03.cc
index 585539e64f..f07d172a25 100644
--- a/tests/mpi/trilinos_distribute_03.cc
+++ b/tests/mpi/trilinos_distribute_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_distribute_04.cc b/tests/mpi/trilinos_distribute_04.cc
index 6016ccb984..9514e54064 100644
--- a/tests/mpi/trilinos_distribute_04.cc
+++ b/tests/mpi/trilinos_distribute_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_locally_owned_elements_01.cc b/tests/mpi/trilinos_locally_owned_elements_01.cc
index a15d2c2946..09b9a94137 100644
--- a/tests/mpi/trilinos_locally_owned_elements_01.cc
+++ b/tests/mpi/trilinos_locally_owned_elements_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_locally_owned_elements_02.cc b/tests/mpi/trilinos_locally_owned_elements_02.cc
index 8381968486..1058188230 100644
--- a/tests/mpi/trilinos_locally_owned_elements_02.cc
+++ b/tests/mpi/trilinos_locally_owned_elements_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2018 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_matvec_01.cc b/tests/mpi/trilinos_matvec_01.cc
index cf026bc475..c8b472b6d5 100644
--- a/tests/mpi/trilinos_matvec_01.cc
+++ b/tests/mpi/trilinos_matvec_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_matvec_02.cc b/tests/mpi/trilinos_matvec_02.cc
index bf21853764..3a22d79d94 100644
--- a/tests/mpi/trilinos_matvec_02.cc
+++ b/tests/mpi/trilinos_matvec_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_matvec_03.cc b/tests/mpi/trilinos_matvec_03.cc
index 7baca4327e..1130a82d09 100644
--- a/tests/mpi/trilinos_matvec_03.cc
+++ b/tests/mpi/trilinos_matvec_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2018 by the deal.II authors
+// Copyright (C) 2011 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_sparse_matrix_01.cc b/tests/mpi/trilinos_sparse_matrix_01.cc
index 4f06dc0590..d8997b115c 100644
--- a/tests/mpi/trilinos_sparse_matrix_01.cc
+++ b/tests/mpi/trilinos_sparse_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_sparse_matrix_02.cc b/tests/mpi/trilinos_sparse_matrix_02.cc
index 306a81dcca..bf298e298b 100644
--- a/tests/mpi/trilinos_sparse_matrix_02.cc
+++ b/tests/mpi/trilinos_sparse_matrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_sparse_matrix_03.cc b/tests/mpi/trilinos_sparse_matrix_03.cc
index 87c43cf1a4..e7af3fd873 100644
--- a/tests/mpi/trilinos_sparse_matrix_03.cc
+++ b/tests/mpi/trilinos_sparse_matrix_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_sparse_matrix_04.cc b/tests/mpi/trilinos_sparse_matrix_04.cc
index 86d5b43995..dfee3fe379 100644
--- a/tests/mpi/trilinos_sparse_matrix_04.cc
+++ b/tests/mpi/trilinos_sparse_matrix_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_sparse_matrix_05.cc b/tests/mpi/trilinos_sparse_matrix_05.cc
index 5e65c860ba..8d1048ebd8 100644
--- a/tests/mpi/trilinos_sparse_matrix_05.cc
+++ b/tests/mpi/trilinos_sparse_matrix_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_sparse_matrix_print_01.cc b/tests/mpi/trilinos_sparse_matrix_print_01.cc
index cf0f1ea6f9..61d96961c2 100644
--- a/tests/mpi/trilinos_sparse_matrix_print_01.cc
+++ b/tests/mpi/trilinos_sparse_matrix_print_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/trilinos_step-27.cc b/tests/mpi/trilinos_step-27.cc
index 86ac673641..6436509e1b 100644
--- a/tests/mpi/trilinos_step-27.cc
+++ b/tests/mpi/trilinos_step-27.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2006 - 2021 by the deal.II authors
+ * Copyright (C) 2006 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/mpi/trilinos_vector_non_negative.cc b/tests/mpi/trilinos_vector_non_negative.cc
index 0a201d0123..ee696ae29c 100644
--- a/tests/mpi/trilinos_vector_non_negative.cc
+++ b/tests/mpi/trilinos_vector_non_negative.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2011 - 2021 by the deal.II authors
+// Copyright (C) 2011 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/mpi/union_01.cc b/tests/mpi/union_01.cc
index 4715fa9292..4b5f59bf7a 100644
--- a/tests/mpi/union_01.cc
+++ b/tests/mpi/union_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/block_01.cc b/tests/multigrid-global-coarsening/block_01.cc
index 62e6a5d822..2d4a447fd3 100644
--- a/tests/multigrid-global-coarsening/block_01.cc
+++ b/tests/multigrid-global-coarsening/block_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/create_geometric_coarsening_sequence_01.cc b/tests/multigrid-global-coarsening/create_geometric_coarsening_sequence_01.cc
index 3586dbd32b..4461f71e4d 100644
--- a/tests/multigrid-global-coarsening/create_geometric_coarsening_sequence_01.cc
+++ b/tests/multigrid-global-coarsening/create_geometric_coarsening_sequence_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/create_polynomial_coarsening_sequence_01.cc b/tests/multigrid-global-coarsening/create_polynomial_coarsening_sequence_01.cc
index d0760097d1..06e85c9e73 100644
--- a/tests/multigrid-global-coarsening/create_polynomial_coarsening_sequence_01.cc
+++ b/tests/multigrid-global-coarsening/create_polynomial_coarsening_sequence_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/fe_nothing_01.cc b/tests/multigrid-global-coarsening/fe_nothing_01.cc
index 0e0fa8ae3d..7a0acaaacb 100644
--- a/tests/multigrid-global-coarsening/fe_nothing_01.cc
+++ b/tests/multigrid-global-coarsening/fe_nothing_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/interpolate_01.cc b/tests/multigrid-global-coarsening/interpolate_01.cc
index 238871a2de..ff70ef8a1d 100644
--- a/tests/multigrid-global-coarsening/interpolate_01.cc
+++ b/tests/multigrid-global-coarsening/interpolate_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/interpolate_to_mg.cc b/tests/multigrid-global-coarsening/interpolate_to_mg.cc
index 1cebbde370..84e970b4b4 100644
--- a/tests/multigrid-global-coarsening/interpolate_to_mg.cc
+++ b/tests/multigrid-global-coarsening/interpolate_to_mg.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/interpolate_to_mg_01.cc b/tests/multigrid-global-coarsening/interpolate_to_mg_01.cc
index cf6d45c6fc..34805da0f9 100644
--- a/tests/multigrid-global-coarsening/interpolate_to_mg_01.cc
+++ b/tests/multigrid-global-coarsening/interpolate_to_mg_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_data_out_04.cc b/tests/multigrid-global-coarsening/mg_data_out_04.cc
index 864ccd2c16..c06addac0e 100644
--- a/tests/multigrid-global-coarsening/mg_data_out_04.cc
+++ b/tests/multigrid-global-coarsening/mg_data_out_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_data_out_05.cc b/tests/multigrid-global-coarsening/mg_data_out_05.cc
index 1d096d08b2..234057c82a 100644
--- a/tests/multigrid-global-coarsening/mg_data_out_05.cc
+++ b/tests/multigrid-global-coarsening/mg_data_out_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_a_02.cc b/tests/multigrid-global-coarsening/mg_transfer_a_02.cc
index 0ad3689f03..c48f9ea7fd 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_a_02.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_a_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_a_03.cc b/tests/multigrid-global-coarsening/mg_transfer_a_03.cc
index 9bbcc29c5a..8a64a75fb4 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_a_03.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_a_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_a_05.cc b/tests/multigrid-global-coarsening/mg_transfer_a_05.cc
index 85e73951e2..8028067848 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_a_05.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_a_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_p_01.cc b/tests/multigrid-global-coarsening/mg_transfer_p_01.cc
index 36bb1f901e..79f3f6a743 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_p_01.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_p_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_p_02.cc b/tests/multigrid-global-coarsening/mg_transfer_p_02.cc
index 3880b0adb7..ded58716ba 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_p_02.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_p_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_p_03.cc b/tests/multigrid-global-coarsening/mg_transfer_p_03.cc
index bc6fe62924..6a674792a7 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_p_03.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_p_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_p_04.cc b/tests/multigrid-global-coarsening/mg_transfer_p_04.cc
index 73a0a79cc7..4c4966de16 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_p_04.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_p_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_p_05.cc b/tests/multigrid-global-coarsening/mg_transfer_p_05.cc
index 8e28009979..7eb5aca780 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_p_05.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_p_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_p_07.cc b/tests/multigrid-global-coarsening/mg_transfer_p_07.cc
index 5545ce996b..48826a18cd 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_p_07.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_p_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_support_01.cc b/tests/multigrid-global-coarsening/mg_transfer_support_01.cc
index 8445595eee..e26716b9eb 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_support_01.cc
+++ b/tests/multigrid-global-coarsening/mg_transfer_support_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/mg_transfer_util.h b/tests/multigrid-global-coarsening/mg_transfer_util.h
index e796baa9b8..3029dd7ffd 100644
--- a/tests/multigrid-global-coarsening/mg_transfer_util.h
+++ b/tests/multigrid-global-coarsening/mg_transfer_util.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2023 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/multigrid_a_02.cc b/tests/multigrid-global-coarsening/multigrid_a_02.cc
index d00f383438..3c92f85ff6 100644
--- a/tests/multigrid-global-coarsening/multigrid_a_02.cc
+++ b/tests/multigrid-global-coarsening/multigrid_a_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/multigrid_a_03.cc b/tests/multigrid-global-coarsening/multigrid_a_03.cc
index 6e4379e937..0477c65b36 100644
--- a/tests/multigrid-global-coarsening/multigrid_a_03.cc
+++ b/tests/multigrid-global-coarsening/multigrid_a_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/multigrid_p_01.cc b/tests/multigrid-global-coarsening/multigrid_p_01.cc
index 5ca1e98eeb..e09d86791d 100644
--- a/tests/multigrid-global-coarsening/multigrid_p_01.cc
+++ b/tests/multigrid-global-coarsening/multigrid_p_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/multigrid_p_02.cc b/tests/multigrid-global-coarsening/multigrid_p_02.cc
index e95a3a73ed..bd27de4fbd 100644
--- a/tests/multigrid-global-coarsening/multigrid_p_02.cc
+++ b/tests/multigrid-global-coarsening/multigrid_p_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/multigrid_p_03.cc b/tests/multigrid-global-coarsening/multigrid_p_03.cc
index 69d57c66c0..657cb04922 100644
--- a/tests/multigrid-global-coarsening/multigrid_p_03.cc
+++ b/tests/multigrid-global-coarsening/multigrid_p_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/multigrid_p_04.cc b/tests/multigrid-global-coarsening/multigrid_p_04.cc
index a8e55db4cc..f58886e1cd 100644
--- a/tests/multigrid-global-coarsening/multigrid_p_04.cc
+++ b/tests/multigrid-global-coarsening/multigrid_p_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/multigrid_util.h b/tests/multigrid-global-coarsening/multigrid_util.h
index 16e84b1325..02719d90d6 100644
--- a/tests/multigrid-global-coarsening/multigrid_util.h
+++ b/tests/multigrid-global-coarsening/multigrid_util.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/non_nested_transfer_05.cc b/tests/multigrid-global-coarsening/non_nested_transfer_05.cc
index 3cc8135451..c1292f4824 100644
--- a/tests/multigrid-global-coarsening/non_nested_transfer_05.cc
+++ b/tests/multigrid-global-coarsening/non_nested_transfer_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid.cc b/tests/multigrid-global-coarsening/parallel_multigrid.cc
index 185b746cfc..a9ba31f1ba 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid_02.cc b/tests/multigrid-global-coarsening/parallel_multigrid_02.cc
index cf19efba55..8aa87c12b1 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid_02.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_02.cc b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_02.cc
index a2bd0618f7..6645c8b6d3 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_02.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_04.cc b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_04.cc
index 764df6461d..415dc61d28 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_04.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_06.cc b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_06.cc
index a55f71e027..96d49c7c62 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_06.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_06ref.cc b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_06ref.cc
index 56001c7a6d..1243133309 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_06ref.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_06ref.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_07.cc b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_07.cc
index ab0bc413a6..4811840ec1 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_07.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid_adaptive_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid_fullydistributed.cc b/tests/multigrid-global-coarsening/parallel_multigrid_fullydistributed.cc
index 4ae6381bfd..76e54f0da7 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid_fullydistributed.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid_fullydistributed.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid_mf.cc b/tests/multigrid-global-coarsening/parallel_multigrid_mf.cc
index 41bd2928dc..8244cfc9d8 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid_mf.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid_mf.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/parallel_multigrid_mf_02.cc b/tests/multigrid-global-coarsening/parallel_multigrid_mf_02.cc
index 97c59b6ef7..e2271b3048 100644
--- a/tests/multigrid-global-coarsening/parallel_multigrid_mf_02.cc
+++ b/tests/multigrid-global-coarsening/parallel_multigrid_mf_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/step-37-inhomogeneous-1.cc b/tests/multigrid-global-coarsening/step-37-inhomogeneous-1.cc
index 151c5d4105..aaceaa2ede 100644
--- a/tests/multigrid-global-coarsening/step-37-inhomogeneous-1.cc
+++ b/tests/multigrid-global-coarsening/step-37-inhomogeneous-1.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2022 by the deal.II authors
+ * Copyright (C) 2009 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid-global-coarsening/stokes_computation.cc b/tests/multigrid-global-coarsening/stokes_computation.cc
index 9dcabfd4e2..51ae2dcb3f 100644
--- a/tests/multigrid-global-coarsening/stokes_computation.cc
+++ b/tests/multigrid-global-coarsening/stokes_computation.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_01.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_01.cc
index 7932704810..42f73376b9 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_01.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_02.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_02.cc
index e6205aac85..411547c2fd 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_02.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_02_block.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_02_block.cc
index 2d158b78cc..82ef802f2a 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_02_block.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_02_block.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_02_block_02.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_02_block_02.cc
index 7ede5f71af..49f9501246 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_02_block_02.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_02_block_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_03.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_03.cc
index 0a5d1b2cfb..261646ade6 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_03.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_04.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_04.cc
index 41f110bbe9..ab7c3b3abd 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_04.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_05.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_05.cc
index 8aef5d8611..27648e46d7 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_05.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_06.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_06.cc
index 932fb3b769..e5333728ab 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_06.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_07.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_07.cc
index a095a15a1a..dfc6749765 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_07.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_08.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_08.cc
index 636a47f607..b4a50e6eef 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_08.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2019 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_09.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_09.cc
index 66d6a77471..781d9bc234 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_09.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_10.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_10.cc
index cffc150bb3..cb2cd88ad4 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_10.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_11.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_11.cc
index 3596df96e6..9f6d3900a0 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_11.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_12.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_12.cc
index 6b4cf76a37..af5f6c36f0 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_12.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2019 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_matrix_free_14.cc b/tests/multigrid-global-coarsening/transfer_matrix_free_14.cc
index 1c44df81a1..b49acaec78 100644
--- a/tests/multigrid-global-coarsening/transfer_matrix_free_14.cc
+++ b/tests/multigrid-global-coarsening/transfer_matrix_free_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid-global-coarsening/transfer_prebuilt_04.cc b/tests/multigrid-global-coarsening/transfer_prebuilt_04.cc
index 4e2cb5d0cf..44b0e769c2 100644
--- a/tests/multigrid-global-coarsening/transfer_prebuilt_04.cc
+++ b/tests/multigrid-global-coarsening/transfer_prebuilt_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/constrained_dofs_04.cc b/tests/multigrid/constrained_dofs_04.cc
index b4a45c9d76..d3525f5f5c 100644
--- a/tests/multigrid/constrained_dofs_04.cc
+++ b/tests/multigrid/constrained_dofs_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/constrained_dofs_05.cc b/tests/multigrid/constrained_dofs_05.cc
index 16849b7c67..4c20a9a5bf 100644
--- a/tests/multigrid/constrained_dofs_05.cc
+++ b/tests/multigrid/constrained_dofs_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/constrained_dofs_07.cc b/tests/multigrid/constrained_dofs_07.cc
index 507eed838c..3c8ff7853f 100644
--- a/tests/multigrid/constrained_dofs_07.cc
+++ b/tests/multigrid/constrained_dofs_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/events_01.cc b/tests/multigrid/events_01.cc
index b0a2d05937..4781dad0ea 100644
--- a/tests/multigrid/events_01.cc
+++ b/tests/multigrid/events_01.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2021 by the deal.II authors
+ * Copyright (C) 2016 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid/flux_sparsity_pattern_constraints.cc b/tests/multigrid/flux_sparsity_pattern_constraints.cc
index 6054ced002..b0396cdd8e 100644
--- a/tests/multigrid/flux_sparsity_pattern_constraints.cc
+++ b/tests/multigrid/flux_sparsity_pattern_constraints.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2021 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/interface_matrix_entry_01.cc b/tests/multigrid/interface_matrix_entry_01.cc
index 458329582a..497b6f0799 100644
--- a/tests/multigrid/interface_matrix_entry_01.cc
+++ b/tests/multigrid/interface_matrix_entry_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/interpolate_to_mg_01.cc b/tests/multigrid/interpolate_to_mg_01.cc
index a77b49aca6..fb54a722fb 100644
--- a/tests/multigrid/interpolate_to_mg_01.cc
+++ b/tests/multigrid/interpolate_to_mg_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/max_level_for_coarse_mesh.cc b/tests/multigrid/max_level_for_coarse_mesh.cc
index ec251fe81c..6b4c4a72a4 100644
--- a/tests/multigrid/max_level_for_coarse_mesh.cc
+++ b/tests/multigrid/max_level_for_coarse_mesh.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/mg_coarse_01.cc b/tests/multigrid/mg_coarse_01.cc
index 73532b78ed..a9bc2df8a5 100644
--- a/tests/multigrid/mg_coarse_01.cc
+++ b/tests/multigrid/mg_coarse_01.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2021 by the deal.II authors
+ * Copyright (C) 2016 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid/mg_constraints_pbc.cc b/tests/multigrid/mg_constraints_pbc.cc
index 2ddfc0f222..4957742107 100644
--- a/tests/multigrid/mg_constraints_pbc.cc
+++ b/tests/multigrid/mg_constraints_pbc.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2023 by the deal.II authors
+ * Copyright (C) 2023 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid/mg_data_out_01.cc b/tests/multigrid/mg_data_out_01.cc
index b206e81296..c607faf773 100644
--- a/tests/multigrid/mg_data_out_01.cc
+++ b/tests/multigrid/mg_data_out_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2021 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/mg_data_out_02.cc b/tests/multigrid/mg_data_out_02.cc
index 258dadb6a4..723bcb53b4 100644
--- a/tests/multigrid/mg_data_out_02.cc
+++ b/tests/multigrid/mg_data_out_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2021 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/mg_data_out_04.cc b/tests/multigrid/mg_data_out_04.cc
index 5546f60463..9e6156e3d4 100644
--- a/tests/multigrid/mg_data_out_04.cc
+++ b/tests/multigrid/mg_data_out_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/mg_data_out_05.cc b/tests/multigrid/mg_data_out_05.cc
index 88ce39e26d..dd1309757f 100644
--- a/tests/multigrid/mg_data_out_05.cc
+++ b/tests/multigrid/mg_data_out_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/mg_level_object_args_01.cc b/tests/multigrid/mg_level_object_args_01.cc
index 2dd923cb6c..9abd507206 100644
--- a/tests/multigrid/mg_level_object_args_01.cc
+++ b/tests/multigrid/mg_level_object_args_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/mg_renumbered_01.cc b/tests/multigrid/mg_renumbered_01.cc
index 12c5f191cb..d93794915f 100644
--- a/tests/multigrid/mg_renumbered_01.cc
+++ b/tests/multigrid/mg_renumbered_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/mg_renumbered_02.cc b/tests/multigrid/mg_renumbered_02.cc
index 55742a8b27..9b5d59107e 100644
--- a/tests/multigrid/mg_renumbered_02.cc
+++ b/tests/multigrid/mg_renumbered_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/mg_renumbered_03.cc b/tests/multigrid/mg_renumbered_03.cc
index 3d5eb4b414..27fc8b9d63 100644
--- a/tests/multigrid/mg_renumbered_03.cc
+++ b/tests/multigrid/mg_renumbered_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/mg_stats_01.cc b/tests/multigrid/mg_stats_01.cc
index 58737f2bb9..e8a4728086 100644
--- a/tests/multigrid/mg_stats_01.cc
+++ b/tests/multigrid/mg_stats_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/renumbering_02.cc b/tests/multigrid/renumbering_02.cc
index 1cb64af8bb..7220e2ae5d 100644
--- a/tests/multigrid/renumbering_02.cc
+++ b/tests/multigrid/renumbering_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-16-02.cc b/tests/multigrid/step-16-02.cc
index 734407342d..729bdaa171 100644
--- a/tests/multigrid/step-16-02.cc
+++ b/tests/multigrid/step-16-02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-16-03.cc b/tests/multigrid/step-16-03.cc
index d5625b7af7..7ab20f52b6 100644
--- a/tests/multigrid/step-16-03.cc
+++ b/tests/multigrid/step-16-03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-16-04.cc b/tests/multigrid/step-16-04.cc
index 8bc1c8d45b..c52fc7a1ab 100644
--- a/tests/multigrid/step-16-04.cc
+++ b/tests/multigrid/step-16-04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-16-05.cc b/tests/multigrid/step-16-05.cc
index fa7a177035..80867b0d52 100644
--- a/tests/multigrid/step-16-05.cc
+++ b/tests/multigrid/step-16-05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-16-06.cc b/tests/multigrid/step-16-06.cc
index 3540c34e49..df21d67414 100644
--- a/tests/multigrid/step-16-06.cc
+++ b/tests/multigrid/step-16-06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-16-07.cc b/tests/multigrid/step-16-07.cc
index 55dda5ca02..ed732c9da7 100644
--- a/tests/multigrid/step-16-07.cc
+++ b/tests/multigrid/step-16-07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-16-08.cc b/tests/multigrid/step-16-08.cc
index c7f6d6a804..3c7a76d645 100644
--- a/tests/multigrid/step-16-08.cc
+++ b/tests/multigrid/step-16-08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-16-50-mpi-linear-operator.cc b/tests/multigrid/step-16-50-mpi-linear-operator.cc
index 65130a8a91..764a978d84 100644
--- a/tests/multigrid/step-16-50-mpi-linear-operator.cc
+++ b/tests/multigrid/step-16-50-mpi-linear-operator.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2003 - 2021 by the deal.II authors
+ * Copyright (C) 2003 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid/step-16-50-mpi-smoother.cc b/tests/multigrid/step-16-50-mpi-smoother.cc
index 0a94ace9db..ab69745887 100644
--- a/tests/multigrid/step-16-50-mpi-smoother.cc
+++ b/tests/multigrid/step-16-50-mpi-smoother.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2021 by the deal.II authors
+ * Copyright (C) 2016 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid/step-16-50-mpi.cc b/tests/multigrid/step-16-50-mpi.cc
index a0bf09128f..00d0c64d7e 100644
--- a/tests/multigrid/step-16-50-mpi.cc
+++ b/tests/multigrid/step-16-50-mpi.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2003 - 2021 by the deal.II authors
+ * Copyright (C) 2003 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid/step-16-50-serial.cc b/tests/multigrid/step-16-50-serial.cc
index c3947881c4..1814750a8d 100644
--- a/tests/multigrid/step-16-50-serial.cc
+++ b/tests/multigrid/step-16-50-serial.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2003 - 2021 by the deal.II authors
+ * Copyright (C) 2003 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid/step-16-bdry1.cc b/tests/multigrid/step-16-bdry1.cc
index f8ce456697..17eb259542 100644
--- a/tests/multigrid/step-16-bdry1.cc
+++ b/tests/multigrid/step-16-bdry1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-16.cc b/tests/multigrid/step-16.cc
index 7bd3d6c025..45d840aeba 100644
--- a/tests/multigrid/step-16.cc
+++ b/tests/multigrid/step-16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-39-02.cc b/tests/multigrid/step-39-02.cc
index a8af98b68b..414d36a141 100644
--- a/tests/multigrid/step-39-02.cc
+++ b/tests/multigrid/step-39-02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-39-02a.cc b/tests/multigrid/step-39-02a.cc
index c29e4fc082..28313f9e71 100644
--- a/tests/multigrid/step-39-02a.cc
+++ b/tests/multigrid/step-39-02a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-39-03.cc b/tests/multigrid/step-39-03.cc
index e3476297c6..576ea3e4d8 100644
--- a/tests/multigrid/step-39-03.cc
+++ b/tests/multigrid/step-39-03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-39.cc b/tests/multigrid/step-39.cc
index f99d44718b..f675f8d741 100644
--- a/tests/multigrid/step-39.cc
+++ b/tests/multigrid/step-39.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/step-50_01.cc b/tests/multigrid/step-50_01.cc
index bd18826b51..0c52fa144b 100644
--- a/tests/multigrid/step-50_01.cc
+++ b/tests/multigrid/step-50_01.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2022 by the deal.II authors
+ * Copyright (C) 2016 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid/step-50_02.cc b/tests/multigrid/step-50_02.cc
index b699294c17..d9ff64e175 100644
--- a/tests/multigrid/step-50_02.cc
+++ b/tests/multigrid/step-50_02.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2003 - 2022 by the deal.II authors
+ * Copyright (C) 2003 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/multigrid/transfer_02.cc b/tests/multigrid/transfer_02.cc
index 720ff11ab2..e9e571967e 100644
--- a/tests/multigrid/transfer_02.cc
+++ b/tests/multigrid/transfer_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_01.cc b/tests/multigrid/transfer_matrix_free_01.cc
index e07a20c5f3..4232952832 100644
--- a/tests/multigrid/transfer_matrix_free_01.cc
+++ b/tests/multigrid/transfer_matrix_free_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_02.cc b/tests/multigrid/transfer_matrix_free_02.cc
index e6f7245eda..8d993569c6 100644
--- a/tests/multigrid/transfer_matrix_free_02.cc
+++ b/tests/multigrid/transfer_matrix_free_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_02_block.cc b/tests/multigrid/transfer_matrix_free_02_block.cc
index efc82bd7c8..1e72f04a43 100644
--- a/tests/multigrid/transfer_matrix_free_02_block.cc
+++ b/tests/multigrid/transfer_matrix_free_02_block.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_02_block_02.cc b/tests/multigrid/transfer_matrix_free_02_block_02.cc
index 472ba8dfa4..6c3d59834f 100644
--- a/tests/multigrid/transfer_matrix_free_02_block_02.cc
+++ b/tests/multigrid/transfer_matrix_free_02_block_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_03.cc b/tests/multigrid/transfer_matrix_free_03.cc
index 5be2508b4a..f59d3d4171 100644
--- a/tests/multigrid/transfer_matrix_free_03.cc
+++ b/tests/multigrid/transfer_matrix_free_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_04.cc b/tests/multigrid/transfer_matrix_free_04.cc
index 13481d0bc2..e3b770e2c5 100644
--- a/tests/multigrid/transfer_matrix_free_04.cc
+++ b/tests/multigrid/transfer_matrix_free_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_05.cc b/tests/multigrid/transfer_matrix_free_05.cc
index 835871b181..7d0af0a723 100644
--- a/tests/multigrid/transfer_matrix_free_05.cc
+++ b/tests/multigrid/transfer_matrix_free_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_06.cc b/tests/multigrid/transfer_matrix_free_06.cc
index 7db0bdebe1..837803b16d 100644
--- a/tests/multigrid/transfer_matrix_free_06.cc
+++ b/tests/multigrid/transfer_matrix_free_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_07.cc b/tests/multigrid/transfer_matrix_free_07.cc
index c7fad39c37..6ecf279803 100644
--- a/tests/multigrid/transfer_matrix_free_07.cc
+++ b/tests/multigrid/transfer_matrix_free_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_11.cc b/tests/multigrid/transfer_matrix_free_11.cc
index 463fbbd01d..241aa36d8c 100644
--- a/tests/multigrid/transfer_matrix_free_11.cc
+++ b/tests/multigrid/transfer_matrix_free_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_matrix_free_13.cc b/tests/multigrid/transfer_matrix_free_13.cc
index b426f9b313..631fad03a5 100644
--- a/tests/multigrid/transfer_matrix_free_13.cc
+++ b/tests/multigrid/transfer_matrix_free_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_prebuilt_05.cc b/tests/multigrid/transfer_prebuilt_05.cc
index 45345de78f..561be47ffe 100644
--- a/tests/multigrid/transfer_prebuilt_05.cc
+++ b/tests/multigrid/transfer_prebuilt_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_system_adaptive_01.cc b/tests/multigrid/transfer_system_adaptive_01.cc
index e6e679c38d..9f00b8271c 100644
--- a/tests/multigrid/transfer_system_adaptive_01.cc
+++ b/tests/multigrid/transfer_system_adaptive_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_system_adaptive_02.cc b/tests/multigrid/transfer_system_adaptive_02.cc
index 7db14d76c7..621c010ada 100644
--- a/tests/multigrid/transfer_system_adaptive_02.cc
+++ b/tests/multigrid/transfer_system_adaptive_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_system_adaptive_03.cc b/tests/multigrid/transfer_system_adaptive_03.cc
index 385624fb5a..91c936abe7 100644
--- a/tests/multigrid/transfer_system_adaptive_03.cc
+++ b/tests/multigrid/transfer_system_adaptive_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_system_adaptive_04.cc b/tests/multigrid/transfer_system_adaptive_04.cc
index 21eb98b38a..f9aeacd3af 100644
--- a/tests/multigrid/transfer_system_adaptive_04.cc
+++ b/tests/multigrid/transfer_system_adaptive_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_system_adaptive_05.cc b/tests/multigrid/transfer_system_adaptive_05.cc
index ae0b866700..882c97766c 100644
--- a/tests/multigrid/transfer_system_adaptive_05.cc
+++ b/tests/multigrid/transfer_system_adaptive_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_system_adaptive_06.cc b/tests/multigrid/transfer_system_adaptive_06.cc
index 1eee7f92fd..affe8c8964 100644
--- a/tests/multigrid/transfer_system_adaptive_06.cc
+++ b/tests/multigrid/transfer_system_adaptive_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_system_adaptive_07.cc b/tests/multigrid/transfer_system_adaptive_07.cc
index ef0ff3adc6..2cf407e698 100644
--- a/tests/multigrid/transfer_system_adaptive_07.cc
+++ b/tests/multigrid/transfer_system_adaptive_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_system_adaptive_08.cc b/tests/multigrid/transfer_system_adaptive_08.cc
index 917f086eb2..677bcd6bba 100644
--- a/tests/multigrid/transfer_system_adaptive_08.cc
+++ b/tests/multigrid/transfer_system_adaptive_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/transfer_system_adaptive_09.cc b/tests/multigrid/transfer_system_adaptive_09.cc
index 9b6f6543d2..6ee9599a9a 100644
--- a/tests/multigrid/transfer_system_adaptive_09.cc
+++ b/tests/multigrid/transfer_system_adaptive_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multigrid/workload_imbalance.cc b/tests/multigrid/workload_imbalance.cc
index 84667507f6..7d77827a98 100644
--- a/tests/multigrid/workload_imbalance.cc
+++ b/tests/multigrid/workload_imbalance.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2019 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/bench_01.cc b/tests/multithreading/bench_01.cc
index 508ba12a97..101804d95d 100644
--- a/tests/multithreading/bench_01.cc
+++ b/tests/multithreading/bench_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/task_01_exception_03.cc b/tests/multithreading/task_01_exception_03.cc
index 124ee8f314..046948ca0e 100644
--- a/tests/multithreading/task_01_exception_03.cc
+++ b/tests/multithreading/task_01_exception_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/task_06.cc b/tests/multithreading/task_06.cc
index c82cd68dd4..abcc49221f 100644
--- a/tests/multithreading/task_06.cc
+++ b/tests/multithreading/task_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/task_14.cc b/tests/multithreading/task_14.cc
index 95c5c7428b..4e6ccc111f 100644
--- a/tests/multithreading/task_14.cc
+++ b/tests/multithreading/task_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/task_15.cc b/tests/multithreading/task_15.cc
index a9f843ed4c..26a7797ea8 100644
--- a/tests/multithreading/task_15.cc
+++ b/tests/multithreading/task_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/task_16.cc b/tests/multithreading/task_16.cc
index 8277a6a646..fac586f2ea 100644
--- a/tests/multithreading/task_16.cc
+++ b/tests/multithreading/task_16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/thread_12.cc b/tests/multithreading/thread_12.cc
index ad22fa9fa1..e3a2d8d026 100644
--- a/tests/multithreading/thread_12.cc
+++ b/tests/multithreading/thread_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/thread_local_storage_01.cc b/tests/multithreading/thread_local_storage_01.cc
index 3c37171912..ebc379a4c1 100644
--- a/tests/multithreading/thread_local_storage_01.cc
+++ b/tests/multithreading/thread_local_storage_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/thread_local_storage_02.cc b/tests/multithreading/thread_local_storage_02.cc
index 2326869d40..0401d56b2d 100644
--- a/tests/multithreading/thread_local_storage_02.cc
+++ b/tests/multithreading/thread_local_storage_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/thread_local_storage_03.cc b/tests/multithreading/thread_local_storage_03.cc
index 028d48b62e..5ab724d250 100644
--- a/tests/multithreading/thread_local_storage_03.cc
+++ b/tests/multithreading/thread_local_storage_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/thread_local_storage_04.cc b/tests/multithreading/thread_local_storage_04.cc
index c86252e960..9c613c33e4 100644
--- a/tests/multithreading/thread_local_storage_04.cc
+++ b/tests/multithreading/thread_local_storage_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/thread_local_storage_05.cc b/tests/multithreading/thread_local_storage_05.cc
index bbb6f4bc3a..87b76fbc73 100644
--- a/tests/multithreading/thread_local_storage_05.cc
+++ b/tests/multithreading/thread_local_storage_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/thread_local_storage_06.cc b/tests/multithreading/thread_local_storage_06.cc
index 9137283baf..76e1e3b780 100644
--- a/tests/multithreading/thread_local_storage_06.cc
+++ b/tests/multithreading/thread_local_storage_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/thread_local_storage_07.cc b/tests/multithreading/thread_local_storage_07.cc
index feb405c108..3e92b442af 100644
--- a/tests/multithreading/thread_local_storage_07.cc
+++ b/tests/multithreading/thread_local_storage_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/thread_local_storage_08.cc b/tests/multithreading/thread_local_storage_08.cc
index 092078a888..e3c761b9b8 100644
--- a/tests/multithreading/thread_local_storage_08.cc
+++ b/tests/multithreading/thread_local_storage_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2021 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/work_stream_01b.cc b/tests/multithreading/work_stream_01b.cc
index ee9b8f11c1..2102882bfc 100644
--- a/tests/multithreading/work_stream_01b.cc
+++ b/tests/multithreading/work_stream_01b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/work_stream_03.cc b/tests/multithreading/work_stream_03.cc
index f318f8b661..a6d953b1f0 100644
--- a/tests/multithreading/work_stream_03.cc
+++ b/tests/multithreading/work_stream_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/multithreading/work_stream_03_graph.cc b/tests/multithreading/work_stream_03_graph.cc
index d29b07d4f9..2a26881200 100644
--- a/tests/multithreading/work_stream_03_graph.cc
+++ b/tests/multithreading/work_stream_03_graph.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2020 by the deal.II authors
+// Copyright (C) 2006 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/discrete_quadrature_generator.cc b/tests/non_matching/discrete_quadrature_generator.cc
index 4739f70876..a3f3c7ca1d 100644
--- a/tests/non_matching/discrete_quadrature_generator.cc
+++ b/tests/non_matching/discrete_quadrature_generator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/face_quadrature_generator.cc b/tests/non_matching/face_quadrature_generator.cc
index 2efab5229d..c8e91ac580 100644
--- a/tests/non_matching/face_quadrature_generator.cc
+++ b/tests/non_matching/face_quadrature_generator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/fe_immersed_surface_values.cc b/tests/non_matching/fe_immersed_surface_values.cc
index 9b1e0e3deb..3f7f1631a9 100644
--- a/tests/non_matching/fe_immersed_surface_values.cc
+++ b/tests/non_matching/fe_immersed_surface_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/fe_interface_values.cc b/tests/non_matching/fe_interface_values.cc
index 05ce2e49bc..09247f1707 100644
--- a/tests/non_matching/fe_interface_values.cc
+++ b/tests/non_matching/fe_interface_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/fe_interface_values_non_standard_meshes.cc b/tests/non_matching/fe_interface_values_non_standard_meshes.cc
index 7be710cdbd..8a6b4af415 100644
--- a/tests/non_matching/fe_interface_values_non_standard_meshes.cc
+++ b/tests/non_matching/fe_interface_values_non_standard_meshes.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/fe_values.cc b/tests/non_matching/fe_values.cc
index 498d805300..76a82e3a70 100644
--- a/tests/non_matching/fe_values.cc
+++ b/tests/non_matching/fe_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/find_best_height_direction.cc b/tests/non_matching/find_best_height_direction.cc
index 73d31c96f2..bf0a6be746 100644
--- a/tests/non_matching/find_best_height_direction.cc
+++ b/tests/non_matching/find_best_height_direction.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/find_extreme_values.cc b/tests/non_matching/find_extreme_values.cc
index 29d5480be2..85d2b94e5d 100644
--- a/tests/non_matching/find_extreme_values.cc
+++ b/tests/non_matching/find_extreme_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/immersed_surface_quadrature.cc b/tests/non_matching/immersed_surface_quadrature.cc
index 27f0091ccf..c6a2022ba7 100644
--- a/tests/non_matching/immersed_surface_quadrature.cc
+++ b/tests/non_matching/immersed_surface_quadrature.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/mapping_info.cc b/tests/non_matching/mapping_info.cc
index 1bce335e37..70076c0428 100644
--- a/tests/non_matching/mapping_info.cc
+++ b/tests/non_matching/mapping_info.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/mapping_info_03.cc b/tests/non_matching/mapping_info_03.cc
index 0531a6b276..749e90871a 100644
--- a/tests/non_matching/mapping_info_03.cc
+++ b/tests/non_matching/mapping_info_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/mapping_info_04.cc b/tests/non_matching/mapping_info_04.cc
index 3c4297aa51..37f309e6e8 100644
--- a/tests/non_matching/mapping_info_04.cc
+++ b/tests/non_matching/mapping_info_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/mapping_info_05.cc b/tests/non_matching/mapping_info_05.cc
index 8ddcc184e9..a0f55b8a5e 100644
--- a/tests/non_matching/mapping_info_05.cc
+++ b/tests/non_matching/mapping_info_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/pointwise_definiteness.cc b/tests/non_matching/pointwise_definiteness.cc
index a462a27ebf..4cd9ee7f99 100644
--- a/tests/non_matching/pointwise_definiteness.cc
+++ b/tests/non_matching/pointwise_definiteness.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/quadrature_generator.cc b/tests/non_matching/quadrature_generator.cc
index 98d58d5f7d..d847a74313 100644
--- a/tests/non_matching/quadrature_generator.cc
+++ b/tests/non_matching/quadrature_generator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/quadrature_generator_sphere.cc b/tests/non_matching/quadrature_generator_sphere.cc
index e2217012ee..e884981b4c 100644
--- a/tests/non_matching/quadrature_generator_sphere.cc
+++ b/tests/non_matching/quadrature_generator_sphere.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/root_finder.cc b/tests/non_matching/root_finder.cc
index 67e6acea90..31504a88d2 100644
--- a/tests/non_matching/root_finder.cc
+++ b/tests/non_matching/root_finder.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2021 by the deal.II authors
+// Copyright (C) 1998 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/step-70.cc b/tests/non_matching/step-70.cc
index 2f7133bde6..b79c0dc508 100644
--- a/tests/non_matching/step-70.cc
+++ b/tests/non_matching/step-70.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/non_matching/tensor_point_with_1D_quadrature.cc b/tests/non_matching/tensor_point_with_1D_quadrature.cc
index f30523382c..32606ac538 100644
--- a/tests/non_matching/tensor_point_with_1D_quadrature.cc
+++ b/tests/non_matching/tensor_point_with_1D_quadrature.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/non_matching/up_through_dimension_creator.cc b/tests/non_matching/up_through_dimension_creator.cc
index d72675e257..621d8863f2 100644
--- a/tests/non_matching/up_through_dimension_creator.cc
+++ b/tests/non_matching/up_through_dimension_creator.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/assemble_matrix_parallel_01.cc b/tests/numerics/assemble_matrix_parallel_01.cc
index cf0e549927..0fea3fe501 100644
--- a/tests/numerics/assemble_matrix_parallel_01.cc
+++ b/tests/numerics/assemble_matrix_parallel_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/assemble_matrix_parallel_02.cc b/tests/numerics/assemble_matrix_parallel_02.cc
index c4734a6fcc..17cec0f2f4 100644
--- a/tests/numerics/assemble_matrix_parallel_02.cc
+++ b/tests/numerics/assemble_matrix_parallel_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/assemble_matrix_parallel_03.cc b/tests/numerics/assemble_matrix_parallel_03.cc
index 895993a295..c702227483 100644
--- a/tests/numerics/assemble_matrix_parallel_03.cc
+++ b/tests/numerics/assemble_matrix_parallel_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/assemble_matrix_parallel_04.cc b/tests/numerics/assemble_matrix_parallel_04.cc
index be3f170559..533459643f 100644
--- a/tests/numerics/assemble_matrix_parallel_04.cc
+++ b/tests/numerics/assemble_matrix_parallel_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/create_mass_matrix_constraints_02b.cc b/tests/numerics/create_mass_matrix_constraints_02b.cc
index 5b16a9a4b4..c345b7fd13 100644
--- a/tests/numerics/create_mass_matrix_constraints_02b.cc
+++ b/tests/numerics/create_mass_matrix_constraints_02b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/create_point_source.cc b/tests/numerics/create_point_source.cc
index d4550ce365..a218c516ef 100644
--- a/tests/numerics/create_point_source.cc
+++ b/tests/numerics/create_point_source.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2018 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/create_point_source_hp.cc b/tests/numerics/create_point_source_hp.cc
index fc622309a6..b7f7815358 100644
--- a/tests/numerics/create_point_source_hp.cc
+++ b/tests/numerics/create_point_source_hp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/derivatives.cc b/tests/numerics/derivatives.cc
index 72a410295b..797ffb6095 100644
--- a/tests/numerics/derivatives.cc
+++ b/tests/numerics/derivatives.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/error_estimator_02.cc b/tests/numerics/error_estimator_02.cc
index 7d607150ed..2bf6eeb1e3 100644
--- a/tests/numerics/error_estimator_02.cc
+++ b/tests/numerics/error_estimator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/error_estimator_02_complex.cc b/tests/numerics/error_estimator_02_complex.cc
index 0687ec3a17..661cd8a2fc 100644
--- a/tests/numerics/error_estimator_02_complex.cc
+++ b/tests/numerics/error_estimator_02_complex.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/generalized_interpolation.h b/tests/numerics/generalized_interpolation.h
index 9e04288f56..ba554fe1ec 100644
--- a/tests/numerics/generalized_interpolation.h
+++ b/tests/numerics/generalized_interpolation.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/interpolate_to_different_mesh_01.cc b/tests/numerics/interpolate_to_different_mesh_01.cc
index 7d39ee9146..2b74a76df1 100644
--- a/tests/numerics/interpolate_to_different_mesh_01.cc
+++ b/tests/numerics/interpolate_to_different_mesh_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/interpolate_to_different_mesh_02.cc b/tests/numerics/interpolate_to_different_mesh_02.cc
index 22e979fbf3..f59ed71103 100644
--- a/tests/numerics/interpolate_to_different_mesh_02.cc
+++ b/tests/numerics/interpolate_to_different_mesh_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2023 by the deal.II authors
+// Copyright (C) 2000 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/matrix_creator_01.cc b/tests/numerics/matrix_creator_01.cc
index c61e5b5dfa..bc9a1932db 100644
--- a/tests/numerics/matrix_creator_01.cc
+++ b/tests/numerics/matrix_creator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/no_flux_04.cc b/tests/numerics/no_flux_04.cc
index 04b6fde476..98c1a5c7e7 100644
--- a/tests/numerics/no_flux_04.cc
+++ b/tests/numerics/no_flux_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2022 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/no_flux_10.cc b/tests/numerics/no_flux_10.cc
index 63c9b68d78..4503742e4e 100644
--- a/tests/numerics/no_flux_10.cc
+++ b/tests/numerics/no_flux_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/no_flux_11.cc b/tests/numerics/no_flux_11.cc
index 72e41baf86..0f36fc9701 100644
--- a/tests/numerics/no_flux_11.cc
+++ b/tests/numerics/no_flux_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2020 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/no_flux_12.cc b/tests/numerics/no_flux_12.cc
index aa5db1ab50..3231101c21 100644
--- a/tests/numerics/no_flux_12.cc
+++ b/tests/numerics/no_flux_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/no_flux_17.cc b/tests/numerics/no_flux_17.cc
index 0705418b26..e17c45ac16 100644
--- a/tests/numerics/no_flux_17.cc
+++ b/tests/numerics/no_flux_17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/no_flux_18.cc b/tests/numerics/no_flux_18.cc
index 0f85515e2f..81fcf64e76 100644
--- a/tests/numerics/no_flux_18.cc
+++ b/tests/numerics/no_flux_18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2012 - 2022 by the deal.II authors
+// Copyright (C) 2012 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/no_flux_hp_04.cc b/tests/numerics/no_flux_hp_04.cc
index 88c1007a45..0eab62f8c8 100644
--- a/tests/numerics/no_flux_hp_04.cc
+++ b/tests/numerics/no_flux_hp_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/nonlinear_solver_selector_01.cc b/tests/numerics/nonlinear_solver_selector_01.cc
index 77c07f34c4..8a6ac7669f 100644
--- a/tests/numerics/nonlinear_solver_selector_01.cc
+++ b/tests/numerics/nonlinear_solver_selector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2023 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/nonlinear_solver_selector_03.cc b/tests/numerics/nonlinear_solver_selector_03.cc
index 3eec90a139..44d0479dac 100644
--- a/tests/numerics/nonlinear_solver_selector_03.cc
+++ b/tests/numerics/nonlinear_solver_selector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2023 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/normal_flux_inhom_01.cc b/tests/numerics/normal_flux_inhom_01.cc
index 3ac60f2848..358b8dbbc6 100644
--- a/tests/numerics/normal_flux_inhom_01.cc
+++ b/tests/numerics/normal_flux_inhom_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2020 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/point_value_history_01.cc b/tests/numerics/point_value_history_01.cc
index c5da66480f..fb6156f951 100644
--- a/tests/numerics/point_value_history_01.cc
+++ b/tests/numerics/point_value_history_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/point_value_history_02.cc b/tests/numerics/point_value_history_02.cc
index f467725a8f..1dbfa60394 100644
--- a/tests/numerics/point_value_history_02.cc
+++ b/tests/numerics/point_value_history_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/point_value_history_03.cc b/tests/numerics/point_value_history_03.cc
index e845f77d76..02e0bf60a5 100644
--- a/tests/numerics/point_value_history_03.cc
+++ b/tests/numerics/point_value_history_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_boundary_01.cc b/tests/numerics/project_boundary_01.cc
index f0fd6e1f4e..d562219151 100644
--- a/tests/numerics/project_boundary_01.cc
+++ b/tests/numerics/project_boundary_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2022 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_boundary_rt_01.cc b/tests/numerics/project_boundary_rt_01.cc
index f81a68bafb..20fd43fe7a 100644
--- a/tests/numerics/project_boundary_rt_01.cc
+++ b/tests/numerics/project_boundary_rt_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2021 by the deal.II authors
+// Copyright (C) 2007 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_bv_curl_conf_02.cc b/tests/numerics/project_bv_curl_conf_02.cc
index 87fab4d8c4..605545f3e5 100644
--- a/tests/numerics/project_bv_curl_conf_02.cc
+++ b/tests/numerics/project_bv_curl_conf_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_bv_curl_conf_04.cc b/tests/numerics/project_bv_curl_conf_04.cc
index 9c2936ead1..aad0367feb 100644
--- a/tests/numerics/project_bv_curl_conf_04.cc
+++ b/tests/numerics/project_bv_curl_conf_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_bv_div_conf_03.cc b/tests/numerics/project_bv_div_conf_03.cc
index 618141ea66..36ee1e41da 100644
--- a/tests/numerics/project_bv_div_conf_03.cc
+++ b/tests/numerics/project_bv_div_conf_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_common.h b/tests/numerics/project_common.h
index 4215b7a2ac..dda0cbb8b1 100644
--- a/tests/numerics/project_common.h
+++ b/tests/numerics/project_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2021 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_complex.cc b/tests/numerics/project_complex.cc
index 324aa3801b..42182520fe 100644
--- a/tests/numerics/project_complex.cc
+++ b/tests/numerics/project_complex.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2022 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_parallel_common.h b/tests/numerics/project_parallel_common.h
index 2a275ea703..763fd76578 100644
--- a/tests/numerics/project_parallel_common.h
+++ b/tests/numerics/project_parallel_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2023 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_parallel_qp_common.h b/tests/numerics/project_parallel_qp_common.h
index 18916c4643..5628d63cbb 100644
--- a/tests/numerics/project_parallel_qp_common.h
+++ b/tests/numerics/project_parallel_qp_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_parallel_qpmf_common.h b/tests/numerics/project_parallel_qpmf_common.h
index cc255c4410..1802c2f4ae 100644
--- a/tests/numerics/project_parallel_qpmf_common.h
+++ b/tests/numerics/project_parallel_qpmf_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_to_surface_01.cc b/tests/numerics/project_to_surface_01.cc
index 77f17778c7..678ef197b7 100644
--- a/tests/numerics/project_to_surface_01.cc
+++ b/tests/numerics/project_to_surface_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/project_to_surface_02.cc b/tests/numerics/project_to_surface_02.cc
index 00a38c61db..8a283ca645 100644
--- a/tests/numerics/project_to_surface_02.cc
+++ b/tests/numerics/project_to_surface_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/smoothness_estimator_01.cc b/tests/numerics/smoothness_estimator_01.cc
index 790eb557db..40a9b9012e 100644
--- a/tests/numerics/smoothness_estimator_01.cc
+++ b/tests/numerics/smoothness_estimator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/smoothness_estimator_02.cc b/tests/numerics/smoothness_estimator_02.cc
index 5a0f4a89c8..20de926711 100644
--- a/tests/numerics/smoothness_estimator_02.cc
+++ b/tests/numerics/smoothness_estimator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/subtract_mean_value_01.cc b/tests/numerics/subtract_mean_value_01.cc
index 9a32c328fa..1488083c78 100644
--- a/tests/numerics/subtract_mean_value_01.cc
+++ b/tests/numerics/subtract_mean_value_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/subtract_mean_value_02.cc b/tests/numerics/subtract_mean_value_02.cc
index 27e3b3147d..c5a4767c59 100644
--- a/tests/numerics/subtract_mean_value_02.cc
+++ b/tests/numerics/subtract_mean_value_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/numerics/tangential_flux_inhom_01.cc b/tests/numerics/tangential_flux_inhom_01.cc
index 23bce2441e..9b16739233 100644
--- a/tests/numerics/tangential_flux_inhom_01.cc
+++ b/tests/numerics/tangential_flux_inhom_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2007 - 2020 by the deal.II authors
+// Copyright (C) 2007 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/opencascade/circle_normal_projection.cc b/tests/opencascade/circle_normal_projection.cc
index af4ae58fac..3e1d39a087 100644
--- a/tests/opencascade/circle_normal_projection.cc
+++ b/tests/opencascade/circle_normal_projection.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/opencascade/interpolation_curve_boundary.cc b/tests/opencascade/interpolation_curve_boundary.cc
index f874e8edda..2bb9bab41d 100644
--- a/tests/opencascade/interpolation_curve_boundary.cc
+++ b/tests/opencascade/interpolation_curve_boundary.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/opencascade/interpolation_curve_boundary_02.cc b/tests/opencascade/interpolation_curve_boundary_02.cc
index 7f52ac5e87..0829e70604 100644
--- a/tests/opencascade/interpolation_curve_boundary_02.cc
+++ b/tests/opencascade/interpolation_curve_boundary_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/opencascade/manifold_clone_01.cc b/tests/opencascade/manifold_clone_01.cc
index 266859e4cd..f8d8f122d3 100644
--- a/tests/opencascade/manifold_clone_01.cc
+++ b/tests/opencascade/manifold_clone_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/opencascade/normal_projection_01.cc b/tests/opencascade/normal_projection_01.cc
index 6eddae9ba5..f474205610 100644
--- a/tests/opencascade/normal_projection_01.cc
+++ b/tests/opencascade/normal_projection_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2020 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/opencascade/step_create.cc b/tests/opencascade/step_create.cc
index 9263da9894..a5cbcff411 100644
--- a/tests/opencascade/step_create.cc
+++ b/tests/opencascade/step_create.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/opencascade/step_write.cc b/tests/opencascade/step_write.cc
index 5e09ac82a4..11ce0b0d66 100644
--- a/tests/opencascade/step_write.cc
+++ b/tests/opencascade/step_write.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2021 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/optimization/bfgs_03.cc b/tests/optimization/bfgs_03.cc
index 0117bcbb18..dd8da835ac 100644
--- a/tests/optimization/bfgs_03.cc
+++ b/tests/optimization/bfgs_03.cc
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2018 - 2022 by the deal.II authors
+//    Copyright (C) 2018 - 2023 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/tests/optimization/bfgs_04.cc b/tests/optimization/bfgs_04.cc
index 4da1bf3d7b..672eed146a 100644
--- a/tests/optimization/bfgs_04.cc
+++ b/tests/optimization/bfgs_04.cc
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2018 - 2021 by the deal.II authors
+//    Copyright (C) 2018 - 2023 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/tests/optimization/bfgs_05.cc b/tests/optimization/bfgs_05.cc
index 29a366ea1a..a15935341b 100644
--- a/tests/optimization/bfgs_05.cc
+++ b/tests/optimization/bfgs_05.cc
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2018 - 2022 by the deal.II authors
+//    Copyright (C) 2018 - 2023 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/tests/optimization/bfgs_05b.cc b/tests/optimization/bfgs_05b.cc
index dad7763983..dadbd451a1 100644
--- a/tests/optimization/bfgs_05b.cc
+++ b/tests/optimization/bfgs_05b.cc
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2018 - 2022 by the deal.II authors
+//    Copyright (C) 2018 - 2023 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/tests/optimization/step-44-with_line_search.cc b/tests/optimization/step-44-with_line_search.cc
index da5077ea1a..4f7ccc3928 100644
--- a/tests/optimization/step-44-with_line_search.cc
+++ b/tests/optimization/step-44-with_line_search.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/optimization/step-44-with_line_search_ptrb.cc b/tests/optimization/step-44-with_line_search_ptrb.cc
index 3cdb80e87d..b51cf9a985 100644
--- a/tests/optimization/step-44-with_line_search_ptrb.cc
+++ b/tests/optimization/step-44-with_line_search_ptrb.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/optimization/step-44-without_line_search.cc b/tests/optimization/step-44-without_line_search.cc
index ac428219fc..9082b34449 100644
--- a/tests/optimization/step-44-without_line_search.cc
+++ b/tests/optimization/step-44-without_line_search.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2020 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/optimization/step-44.h b/tests/optimization/step-44.h
index 6ec2ede11b..0f54384d3d 100644
--- a/tests/optimization/step-44.h
+++ b/tests/optimization/step-44.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/add_parameter_01.cc b/tests/parameter_handler/add_parameter_01.cc
index f8985a130c..af55b10fb4 100644
--- a/tests/parameter_handler/add_parameter_01.cc
+++ b/tests/parameter_handler/add_parameter_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_acceptor_05.cc b/tests/parameter_handler/parameter_acceptor_05.cc
index f0145191b2..c9037d9bdd 100644
--- a/tests/parameter_handler/parameter_acceptor_05.cc
+++ b/tests/parameter_handler/parameter_acceptor_05.cc
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2017 - 2018 by the deal.II authors
+//    Copyright (C) 2017 - 2023 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_acceptor_06.cc b/tests/parameter_handler/parameter_acceptor_06.cc
index 78a6b190ba..bc6b495e5d 100644
--- a/tests/parameter_handler/parameter_acceptor_06.cc
+++ b/tests/parameter_handler/parameter_acceptor_06.cc
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2017 - 2018 by the deal.II authors
+//    Copyright (C) 2017 - 2023 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_acceptor_12.cc b/tests/parameter_handler/parameter_acceptor_12.cc
index d4af2c21e6..5288c650b1 100644
--- a/tests/parameter_handler/parameter_acceptor_12.cc
+++ b/tests/parameter_handler/parameter_acceptor_12.cc
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2023 by the deal.II authors
+//    Copyright (C) 2023 - 2024 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_19.cc b/tests/parameter_handler/parameter_handler_19.cc
index 94b35a6363..2e0229c97d 100644
--- a/tests/parameter_handler/parameter_handler_19.cc
+++ b/tests/parameter_handler/parameter_handler_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2018 by the deal.II authors
+// Copyright (C) 2002 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_23.cc b/tests/parameter_handler/parameter_handler_23.cc
index 6593ae30a7..5758a65db5 100644
--- a/tests/parameter_handler/parameter_handler_23.cc
+++ b/tests/parameter_handler/parameter_handler_23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2022 by the deal.II authors
+// Copyright (C) 2018 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_25.cc b/tests/parameter_handler/parameter_handler_25.cc
index 4a2f8769f3..0cea3ba0d2 100644
--- a/tests/parameter_handler/parameter_handler_25.cc
+++ b/tests/parameter_handler/parameter_handler_25.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_26.cc b/tests/parameter_handler/parameter_handler_26.cc
index 2670de2fb3..51390ad6a4 100644
--- a/tests/parameter_handler/parameter_handler_26.cc
+++ b/tests/parameter_handler/parameter_handler_26.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2021 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_3.cc b/tests/parameter_handler/parameter_handler_3.cc
index 3eb094ed1d..2bdc067916 100644
--- a/tests/parameter_handler/parameter_handler_3.cc
+++ b/tests/parameter_handler/parameter_handler_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_3_with_alias_01.cc b/tests/parameter_handler/parameter_handler_3_with_alias_01.cc
index 230ef3046a..28df08f7e8 100644
--- a/tests/parameter_handler/parameter_handler_3_with_alias_01.cc
+++ b/tests/parameter_handler/parameter_handler_3_with_alias_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_3_with_alias_02.cc b/tests/parameter_handler/parameter_handler_3_with_alias_02.cc
index bd784a5167..ace76cf46e 100644
--- a/tests/parameter_handler/parameter_handler_3_with_alias_02.cc
+++ b/tests/parameter_handler/parameter_handler_3_with_alias_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_3_with_alias_03.cc b/tests/parameter_handler/parameter_handler_3_with_alias_03.cc
index bddb707ea8..89d7f8ddb2 100644
--- a/tests/parameter_handler/parameter_handler_3_with_alias_03.cc
+++ b/tests/parameter_handler/parameter_handler_3_with_alias_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_3_with_alias_04.cc b/tests/parameter_handler/parameter_handler_3_with_alias_04.cc
index afcab7e8ee..5476149372 100644
--- a/tests/parameter_handler/parameter_handler_3_with_alias_04.cc
+++ b/tests/parameter_handler/parameter_handler_3_with_alias_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_3_with_sorting_01.cc b/tests/parameter_handler/parameter_handler_3_with_sorting_01.cc
index 6bc018c031..af562d2ab0 100644
--- a/tests/parameter_handler/parameter_handler_3_with_sorting_01.cc
+++ b/tests/parameter_handler/parameter_handler_3_with_sorting_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_3_with_space.cc b/tests/parameter_handler/parameter_handler_3_with_space.cc
index 21195e9c9e..c4440d38ad 100644
--- a/tests/parameter_handler/parameter_handler_3_with_space.cc
+++ b/tests/parameter_handler/parameter_handler_3_with_space.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_4.cc b/tests/parameter_handler/parameter_handler_4.cc
index 7f6b6d5daa..fbee71003e 100644
--- a/tests/parameter_handler/parameter_handler_4.cc
+++ b/tests/parameter_handler/parameter_handler_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_4a.cc b/tests/parameter_handler/parameter_handler_4a.cc
index 701da93239..b5b4fa3d4a 100644
--- a/tests/parameter_handler/parameter_handler_4a.cc
+++ b/tests/parameter_handler/parameter_handler_4a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_4a_with_alias.cc b/tests/parameter_handler/parameter_handler_4a_with_alias.cc
index 56f668fa49..094c41b341 100644
--- a/tests/parameter_handler/parameter_handler_4a_with_alias.cc
+++ b/tests/parameter_handler/parameter_handler_4a_with_alias.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_4a_with_alias_deprecated.cc b/tests/parameter_handler/parameter_handler_4a_with_alias_deprecated.cc
index 8473474a66..c15fd1be51 100644
--- a/tests/parameter_handler/parameter_handler_4a_with_alias_deprecated.cc
+++ b/tests/parameter_handler/parameter_handler_4a_with_alias_deprecated.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_4b.cc b/tests/parameter_handler/parameter_handler_4b.cc
index 422feb0171..06f3717332 100644
--- a/tests/parameter_handler/parameter_handler_4b.cc
+++ b/tests/parameter_handler/parameter_handler_4b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_5.cc b/tests/parameter_handler/parameter_handler_5.cc
index cf209c3d95..6661499cc5 100644
--- a/tests/parameter_handler/parameter_handler_5.cc
+++ b/tests/parameter_handler/parameter_handler_5.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_6.cc b/tests/parameter_handler/parameter_handler_6.cc
index 3f62f6768e..c5c998ed77 100644
--- a/tests/parameter_handler/parameter_handler_6.cc
+++ b/tests/parameter_handler/parameter_handler_6.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_6_bool.cc b/tests/parameter_handler/parameter_handler_6_bool.cc
index 5931193b3b..8cb5f9b856 100644
--- a/tests/parameter_handler/parameter_handler_6_bool.cc
+++ b/tests/parameter_handler/parameter_handler_6_bool.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_7.cc b/tests/parameter_handler/parameter_handler_7.cc
index f7a2f1e25b..026adb454c 100644
--- a/tests/parameter_handler/parameter_handler_7.cc
+++ b/tests/parameter_handler/parameter_handler_7.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_8.cc b/tests/parameter_handler/parameter_handler_8.cc
index 7fbc3b1288..1d85600bb1 100644
--- a/tests/parameter_handler/parameter_handler_8.cc
+++ b/tests/parameter_handler/parameter_handler_8.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/parameter_handler_9.cc b/tests/parameter_handler/parameter_handler_9.cc
index eb452c08c2..41ff722ded 100644
--- a/tests/parameter_handler/parameter_handler_9.cc
+++ b/tests/parameter_handler/parameter_handler_9.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2018 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/parameter_handler/patterns_10.cc b/tests/parameter_handler/patterns_10.cc
index d03353ebc0..2c96675abf 100644
--- a/tests/parameter_handler/patterns_10.cc
+++ b/tests/parameter_handler/patterns_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/data_out_01.cc b/tests/particles/data_out_01.cc
index ee2ec2548e..72e40b6c8c 100644
--- a/tests/particles/data_out_01.cc
+++ b/tests/particles/data_out_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/data_out_02.cc b/tests/particles/data_out_02.cc
index 7a011f6b59..642771e7ac 100644
--- a/tests/particles/data_out_02.cc
+++ b/tests/particles/data_out_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/data_out_03.cc b/tests/particles/data_out_03.cc
index 6e575592bd..17d971c3a5 100644
--- a/tests/particles/data_out_03.cc
+++ b/tests/particles/data_out_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/data_out_04.cc b/tests/particles/data_out_04.cc
index 8497949a60..616edc2c82 100644
--- a/tests/particles/data_out_04.cc
+++ b/tests/particles/data_out_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/data_out_05.cc b/tests/particles/data_out_05.cc
index 4857f2d8a9..f18094f168 100644
--- a/tests/particles/data_out_05.cc
+++ b/tests/particles/data_out_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/exchange_ghosts_01.cc b/tests/particles/exchange_ghosts_01.cc
index 5d1c749660..8627227112 100644
--- a/tests/particles/exchange_ghosts_01.cc
+++ b/tests/particles/exchange_ghosts_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/generators_02.cc b/tests/particles/generators_02.cc
index 4d191e595f..0f1b15dce4 100644
--- a/tests/particles/generators_02.cc
+++ b/tests/particles/generators_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/generators_09.cc b/tests/particles/generators_09.cc
index d15c9906b1..0890a8b8a9 100644
--- a/tests/particles/generators_09.cc
+++ b/tests/particles/generators_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/generators_11.cc b/tests/particles/generators_11.cc
index 880b4e21e9..eb6ec03943 100644
--- a/tests/particles/generators_11.cc
+++ b/tests/particles/generators_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/generators_12.cc b/tests/particles/generators_12.cc
index 6cb46e92bc..239a4069ed 100644
--- a/tests/particles/generators_12.cc
+++ b/tests/particles/generators_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/interpolate_on_particle_01.cc b/tests/particles/interpolate_on_particle_01.cc
index 2a0aa87f6b..ae6eb2f14e 100644
--- a/tests/particles/interpolate_on_particle_01.cc
+++ b/tests/particles/interpolate_on_particle_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/lost_01.cc b/tests/particles/lost_01.cc
index f196dc7df3..58f0681a57 100644
--- a/tests/particles/lost_01.cc
+++ b/tests/particles/lost_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_01.cc b/tests/particles/particle_01.cc
index 7efb95b021..781bb4f1f7 100644
--- a/tests/particles/particle_01.cc
+++ b/tests/particles/particle_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_02.cc b/tests/particles/particle_02.cc
index 6bbe59d27e..8246cdc4d6 100644
--- a/tests/particles/particle_02.cc
+++ b/tests/particles/particle_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_03.cc b/tests/particles/particle_03.cc
index 0ce26f8556..93cc397a1e 100644
--- a/tests/particles/particle_03.cc
+++ b/tests/particles/particle_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_04.cc b/tests/particles/particle_04.cc
index 09cd994598..9241011ed8 100644
--- a/tests/particles/particle_04.cc
+++ b/tests/particles/particle_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_05.cc b/tests/particles/particle_05.cc
index 25c469eacd..386c2651a0 100644
--- a/tests/particles/particle_05.cc
+++ b/tests/particles/particle_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_06.cc b/tests/particles/particle_06.cc
index b08db26d1f..e738f47223 100644
--- a/tests/particles/particle_06.cc
+++ b/tests/particles/particle_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2021 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_07.cc b/tests/particles/particle_07.cc
index fae8a826d8..d9fdc479b8 100644
--- a/tests/particles/particle_07.cc
+++ b/tests/particles/particle_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_08.cc b/tests/particles/particle_08.cc
index 1f52b66330..193cf7ca19 100644
--- a/tests/particles/particle_08.cc
+++ b/tests/particles/particle_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_01.cc b/tests/particles/particle_handler_01.cc
index 690d8b7f66..8d6b73fbad 100644
--- a/tests/particles/particle_handler_01.cc
+++ b/tests/particles/particle_handler_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_02.cc b/tests/particles/particle_handler_02.cc
index 910c41387a..4942478240 100644
--- a/tests/particles/particle_handler_02.cc
+++ b/tests/particles/particle_handler_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_03.cc b/tests/particles/particle_handler_03.cc
index 68391b5ae0..283e7a10f0 100644
--- a/tests/particles/particle_handler_03.cc
+++ b/tests/particles/particle_handler_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_04.cc b/tests/particles/particle_handler_04.cc
index d6fa74b973..b2dcd1f6f4 100644
--- a/tests/particles/particle_handler_04.cc
+++ b/tests/particles/particle_handler_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_05.cc b/tests/particles/particle_handler_05.cc
index 7fe6210cfd..a4352bb2c8 100644
--- a/tests/particles/particle_handler_05.cc
+++ b/tests/particles/particle_handler_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_06.cc b/tests/particles/particle_handler_06.cc
index 514f9cfc4b..4be7358cff 100644
--- a/tests/particles/particle_handler_06.cc
+++ b/tests/particles/particle_handler_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_08.cc b/tests/particles/particle_handler_08.cc
index 5e705d94b2..d3c440823d 100644
--- a/tests/particles/particle_handler_08.cc
+++ b/tests/particles/particle_handler_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_15.cc b/tests/particles/particle_handler_15.cc
index d64ee1eb5e..00090089c3 100644
--- a/tests/particles/particle_handler_15.cc
+++ b/tests/particles/particle_handler_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_16.cc b/tests/particles/particle_handler_16.cc
index 49dc02750d..86a9abd614 100644
--- a/tests/particles/particle_handler_16.cc
+++ b/tests/particles/particle_handler_16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_17.cc b/tests/particles/particle_handler_17.cc
index ae41dcc787..f127043a48 100644
--- a/tests/particles/particle_handler_17.cc
+++ b/tests/particles/particle_handler_17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_19.cc b/tests/particles/particle_handler_19.cc
index de22cad8b2..aaba62b0cf 100644
--- a/tests/particles/particle_handler_19.cc
+++ b/tests/particles/particle_handler_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_20.cc b/tests/particles/particle_handler_20.cc
index d6bef649c5..0fbbe17b28 100644
--- a/tests/particles/particle_handler_20.cc
+++ b/tests/particles/particle_handler_20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_21.cc b/tests/particles/particle_handler_21.cc
index ff68270dfd..b26a386b11 100644
--- a/tests/particles/particle_handler_21.cc
+++ b/tests/particles/particle_handler_21.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/particles/particle_handler_22.cc b/tests/particles/particle_handler_22.cc
index d0fb313ffa..a22b3f7e99 100644
--- a/tests/particles/particle_handler_22.cc
+++ b/tests/particles/particle_handler_22.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/particles/particle_handler_fully_distributed_01.cc b/tests/particles/particle_handler_fully_distributed_01.cc
index c64adcfd51..5445f19bc9 100644
--- a/tests/particles/particle_handler_fully_distributed_01.cc
+++ b/tests/particles/particle_handler_fully_distributed_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_refinement_outside_cell.cc b/tests/particles/particle_handler_refinement_outside_cell.cc
index 4e3544386f..4fe2c0305c 100644
--- a/tests/particles/particle_handler_refinement_outside_cell.cc
+++ b/tests/particles/particle_handler_refinement_outside_cell.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_serial_01.cc b/tests/particles/particle_handler_serial_01.cc
index b6230032ce..80d993ee38 100644
--- a/tests/particles/particle_handler_serial_01.cc
+++ b/tests/particles/particle_handler_serial_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_serial_02.cc b/tests/particles/particle_handler_serial_02.cc
index 42ec60a5e6..f544b35a3f 100644
--- a/tests/particles/particle_handler_serial_02.cc
+++ b/tests/particles/particle_handler_serial_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_serial_03.cc b/tests/particles/particle_handler_serial_03.cc
index 98956b69c8..3961288629 100644
--- a/tests/particles/particle_handler_serial_03.cc
+++ b/tests/particles/particle_handler_serial_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_shared_01.cc b/tests/particles/particle_handler_shared_01.cc
index 669ab0fa45..7571cc27ce 100644
--- a/tests/particles/particle_handler_shared_01.cc
+++ b/tests/particles/particle_handler_shared_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_handler_sort_01.cc b/tests/particles/particle_handler_sort_01.cc
index bbde3d1c6f..973f23eb27 100644
--- a/tests/particles/particle_handler_sort_01.cc
+++ b/tests/particles/particle_handler_sort_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_interpolation_01.cc b/tests/particles/particle_interpolation_01.cc
index 9b89692acd..a2d7983647 100644
--- a/tests/particles/particle_interpolation_01.cc
+++ b/tests/particles/particle_interpolation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_interpolation_02.cc b/tests/particles/particle_interpolation_02.cc
index cd142f2609..63b3b07416 100644
--- a/tests/particles/particle_interpolation_02.cc
+++ b/tests/particles/particle_interpolation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_interpolation_03.cc b/tests/particles/particle_interpolation_03.cc
index bdd37183aa..bd7f298837 100644
--- a/tests/particles/particle_interpolation_03.cc
+++ b/tests/particles/particle_interpolation_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_interpolation_04.cc b/tests/particles/particle_interpolation_04.cc
index 56b4ca43bf..65d99e3c03 100644
--- a/tests/particles/particle_interpolation_04.cc
+++ b/tests/particles/particle_interpolation_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_interpolation_05.cc b/tests/particles/particle_interpolation_05.cc
index 7ccf13253f..3097e530f7 100644
--- a/tests/particles/particle_interpolation_05.cc
+++ b/tests/particles/particle_interpolation_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_iterator_01.cc b/tests/particles/particle_iterator_01.cc
index 3e26ade534..0b0431c01e 100644
--- a/tests/particles/particle_iterator_01.cc
+++ b/tests/particles/particle_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_iterator_02.cc b/tests/particles/particle_iterator_02.cc
index f887092362..7be524557c 100644
--- a/tests/particles/particle_iterator_02.cc
+++ b/tests/particles/particle_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/particle_weights_01.cc b/tests/particles/particle_weights_01.cc
index d459c3ffec..d97cd7847e 100644
--- a/tests/particles/particle_weights_01.cc
+++ b/tests/particles/particle_weights_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/properties_01.cc b/tests/particles/properties_01.cc
index cc10d4fe08..9d3d732015 100644
--- a/tests/particles/properties_01.cc
+++ b/tests/particles/properties_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/properties_02.cc b/tests/particles/properties_02.cc
index dc06ed8016..49b7a48b53 100644
--- a/tests/particles/properties_02.cc
+++ b/tests/particles/properties_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/remove_particle_01.cc b/tests/particles/remove_particle_01.cc
index c0fd888598..ee4386226e 100644
--- a/tests/particles/remove_particle_01.cc
+++ b/tests/particles/remove_particle_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/particles/step-19.cc b/tests/particles/step-19.cc
index f22fece6d9..defd3bc703 100644
--- a/tests/particles/step-19.cc
+++ b/tests/particles/step-19.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/particles/step-68.cc b/tests/particles/step-68.cc
index 24c1c41bd7..e87cd99155 100644
--- a/tests/particles/step-68.cc
+++ b/tests/particles/step-68.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/performance/timing_navier_stokes.cc b/tests/performance/timing_navier_stokes.cc
index 5583475796..211ce9b7cc 100644
--- a/tests/performance/timing_navier_stokes.cc
+++ b/tests/performance/timing_navier_stokes.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2023 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/01.cc b/tests/petsc/01.cc
index 3ec8d8d3ba..4ecacb02b3 100644
--- a/tests/petsc/01.cc
+++ b/tests/petsc/01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/02.cc b/tests/petsc/02.cc
index aa65750562..1b314f8f0a 100644
--- a/tests/petsc/02.cc
+++ b/tests/petsc/02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/04.cc b/tests/petsc/04.cc
index 3948e39809..ab640b9709 100644
--- a/tests/petsc/04.cc
+++ b/tests/petsc/04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/05.cc b/tests/petsc/05.cc
index f39b294ad5..1719c85085 100644
--- a/tests/petsc/05.cc
+++ b/tests/petsc/05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/06.cc b/tests/petsc/06.cc
index 1dbc02eaa0..b4243d2c2f 100644
--- a/tests/petsc/06.cc
+++ b/tests/petsc/06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/07.cc b/tests/petsc/07.cc
index a5c7de4458..288081b615 100644
--- a/tests/petsc/07.cc
+++ b/tests/petsc/07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/08.cc b/tests/petsc/08.cc
index 54adefa2f6..7b35a79caa 100644
--- a/tests/petsc/08.cc
+++ b/tests/petsc/08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/09.cc b/tests/petsc/09.cc
index c28b2936b9..67fa2074e8 100644
--- a/tests/petsc/09.cc
+++ b/tests/petsc/09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/10.cc b/tests/petsc/10.cc
index 46c2c3deb3..f0d4f9d1e5 100644
--- a/tests/petsc/10.cc
+++ b/tests/petsc/10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/11.cc b/tests/petsc/11.cc
index 8271bb2f85..8ae0e075e0 100644
--- a/tests/petsc/11.cc
+++ b/tests/petsc/11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/12.cc b/tests/petsc/12.cc
index 93a4d32bf3..ab5fc4bd77 100644
--- a/tests/petsc/12.cc
+++ b/tests/petsc/12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/13.cc b/tests/petsc/13.cc
index eb9e7eb94c..06339cf3df 100644
--- a/tests/petsc/13.cc
+++ b/tests/petsc/13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/17.cc b/tests/petsc/17.cc
index 35cb60ff38..585d094f89 100644
--- a/tests/petsc/17.cc
+++ b/tests/petsc/17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/18.cc b/tests/petsc/18.cc
index 34df0086c1..eefa5426c4 100644
--- a/tests/petsc/18.cc
+++ b/tests/petsc/18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/19.cc b/tests/petsc/19.cc
index 741660adae..fcbcf23272 100644
--- a/tests/petsc/19.cc
+++ b/tests/petsc/19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/20.cc b/tests/petsc/20.cc
index 1429bb512c..0ce361c50d 100644
--- a/tests/petsc/20.cc
+++ b/tests/petsc/20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/21.cc b/tests/petsc/21.cc
index 6997ba8707..d99f5cdcd6 100644
--- a/tests/petsc/21.cc
+++ b/tests/petsc/21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/22.cc b/tests/petsc/22.cc
index 8984ad2f6a..be0f3a73c8 100644
--- a/tests/petsc/22.cc
+++ b/tests/petsc/22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/23.cc b/tests/petsc/23.cc
index a4567e8151..1fba45c72b 100644
--- a/tests/petsc/23.cc
+++ b/tests/petsc/23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/24.cc b/tests/petsc/24.cc
index 4b89599106..7353e354cf 100644
--- a/tests/petsc/24.cc
+++ b/tests/petsc/24.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/26.cc b/tests/petsc/26.cc
index 0fe04e9fac..86e8bc3e34 100644
--- a/tests/petsc/26.cc
+++ b/tests/petsc/26.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/27.cc b/tests/petsc/27.cc
index 9ba5aa9149..9497a134fb 100644
--- a/tests/petsc/27.cc
+++ b/tests/petsc/27.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/28.cc b/tests/petsc/28.cc
index b0d2c47fcb..79870f91a7 100644
--- a/tests/petsc/28.cc
+++ b/tests/petsc/28.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/29.cc b/tests/petsc/29.cc
index 1479d71263..ea9228dd1c 100644
--- a/tests/petsc/29.cc
+++ b/tests/petsc/29.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/30.cc b/tests/petsc/30.cc
index 6726394abf..6b9b74292a 100644
--- a/tests/petsc/30.cc
+++ b/tests/petsc/30.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/31.cc b/tests/petsc/31.cc
index 3b02ec7dac..345bc53c7a 100644
--- a/tests/petsc/31.cc
+++ b/tests/petsc/31.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/32.cc b/tests/petsc/32.cc
index e370954fe9..cc57c01451 100644
--- a/tests/petsc/32.cc
+++ b/tests/petsc/32.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/33.cc b/tests/petsc/33.cc
index 4955080247..85f9bab3c2 100644
--- a/tests/petsc/33.cc
+++ b/tests/petsc/33.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/34.cc b/tests/petsc/34.cc
index 695d06bce3..187ec1b050 100644
--- a/tests/petsc/34.cc
+++ b/tests/petsc/34.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/35.cc b/tests/petsc/35.cc
index 33f7386502..789f95e33b 100644
--- a/tests/petsc/35.cc
+++ b/tests/petsc/35.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/36.cc b/tests/petsc/36.cc
index c984b5a26d..f938489e9f 100644
--- a/tests/petsc/36.cc
+++ b/tests/petsc/36.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/37.cc b/tests/petsc/37.cc
index 4872b49a46..9281ff0dd6 100644
--- a/tests/petsc/37.cc
+++ b/tests/petsc/37.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/39.cc b/tests/petsc/39.cc
index 2915196a39..d6de68f34b 100644
--- a/tests/petsc/39.cc
+++ b/tests/petsc/39.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/40.cc b/tests/petsc/40.cc
index 7d8f6845af..5e5e67aed8 100644
--- a/tests/petsc/40.cc
+++ b/tests/petsc/40.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/41.cc b/tests/petsc/41.cc
index e0203ef344..f356db7752 100644
--- a/tests/petsc/41.cc
+++ b/tests/petsc/41.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/42.cc b/tests/petsc/42.cc
index 18e0eecc7a..eabeeddc3a 100644
--- a/tests/petsc/42.cc
+++ b/tests/petsc/42.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/45.cc b/tests/petsc/45.cc
index 97187d33a4..194add920a 100644
--- a/tests/petsc/45.cc
+++ b/tests/petsc/45.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/46.cc b/tests/petsc/46.cc
index 5e0a8da096..5142202792 100644
--- a/tests/petsc/46.cc
+++ b/tests/petsc/46.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/49.cc b/tests/petsc/49.cc
index c3ba838edd..25ca82d090 100644
--- a/tests/petsc/49.cc
+++ b/tests/petsc/49.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/50.cc b/tests/petsc/50.cc
index 05ed166c39..8683d971ea 100644
--- a/tests/petsc/50.cc
+++ b/tests/petsc/50.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/51.cc b/tests/petsc/51.cc
index fc9badff56..aa5dd9b106 100644
--- a/tests/petsc/51.cc
+++ b/tests/petsc/51.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/52.cc b/tests/petsc/52.cc
index 257b17327d..05199b442b 100644
--- a/tests/petsc/52.cc
+++ b/tests/petsc/52.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/55.cc b/tests/petsc/55.cc
index a17cee91e5..0f58a064b9 100644
--- a/tests/petsc/55.cc
+++ b/tests/petsc/55.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/56.cc b/tests/petsc/56.cc
index e2815e6e2f..a90b2738af 100644
--- a/tests/petsc/56.cc
+++ b/tests/petsc/56.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/58.cc b/tests/petsc/58.cc
index 478a0a0389..b519b65ff6 100644
--- a/tests/petsc/58.cc
+++ b/tests/petsc/58.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/59.cc b/tests/petsc/59.cc
index 165bbf72c0..d5980c2cdb 100644
--- a/tests/petsc/59.cc
+++ b/tests/petsc/59.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/60.cc b/tests/petsc/60.cc
index 05a4b83c11..c13e130bb5 100644
--- a/tests/petsc/60.cc
+++ b/tests/petsc/60.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/61.cc b/tests/petsc/61.cc
index 86fd5680a2..badfadeca6 100644
--- a/tests/petsc/61.cc
+++ b/tests/petsc/61.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/62.cc b/tests/petsc/62.cc
index e8a3eefdd7..613c392d7f 100644
--- a/tests/petsc/62.cc
+++ b/tests/petsc/62.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/63.cc b/tests/petsc/63.cc
index 15c2380f3e..2fa8440a55 100644
--- a/tests/petsc/63.cc
+++ b/tests/petsc/63.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/64.cc b/tests/petsc/64.cc
index fb680fe5c2..aaa87a3418 100644
--- a/tests/petsc/64.cc
+++ b/tests/petsc/64.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/65.cc b/tests/petsc/65.cc
index 652e4eb582..1b6c43e330 100644
--- a/tests/petsc/65.cc
+++ b/tests/petsc/65.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/66.cc b/tests/petsc/66.cc
index 6f3871323e..6cb0e505d6 100644
--- a/tests/petsc/66.cc
+++ b/tests/petsc/66.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/68.cc b/tests/petsc/68.cc
index 63a0220060..a75930b03b 100644
--- a/tests/petsc/68.cc
+++ b/tests/petsc/68.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/70.cc b/tests/petsc/70.cc
index f71d3a81b4..3aa2718c67 100644
--- a/tests/petsc/70.cc
+++ b/tests/petsc/70.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/bddc.cc b/tests/petsc/bddc.cc
index 2e9433e726..ba98254686 100644
--- a/tests/petsc/bddc.cc
+++ b/tests/petsc/bddc.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/block_vector_iterator_01.cc b/tests/petsc/block_vector_iterator_01.cc
index ed509c2853..8eca248233 100644
--- a/tests/petsc/block_vector_iterator_01.cc
+++ b/tests/petsc/block_vector_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/block_vector_iterator_02.cc b/tests/petsc/block_vector_iterator_02.cc
index 78cc9df0b9..9e23e80c3c 100644
--- a/tests/petsc/block_vector_iterator_02.cc
+++ b/tests/petsc/block_vector_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_00.cc b/tests/petsc/full_matrix_00.cc
index 7b9121dba4..416d38eb0e 100644
--- a/tests/petsc/full_matrix_00.cc
+++ b/tests/petsc/full_matrix_00.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2022 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_01.cc b/tests/petsc/full_matrix_01.cc
index 30403d3691..b2a90446f6 100644
--- a/tests/petsc/full_matrix_01.cc
+++ b/tests/petsc/full_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_02.cc b/tests/petsc/full_matrix_02.cc
index 17e7163a46..096b80509c 100644
--- a/tests/petsc/full_matrix_02.cc
+++ b/tests/petsc/full_matrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_04.cc b/tests/petsc/full_matrix_04.cc
index 75b4ade52d..be3ef57675 100644
--- a/tests/petsc/full_matrix_04.cc
+++ b/tests/petsc/full_matrix_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_05.cc b/tests/petsc/full_matrix_05.cc
index 48317ef7ca..faf5566ed2 100644
--- a/tests/petsc/full_matrix_05.cc
+++ b/tests/petsc/full_matrix_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_06.cc b/tests/petsc/full_matrix_06.cc
index 04cb7a5ab6..2898917437 100644
--- a/tests/petsc/full_matrix_06.cc
+++ b/tests/petsc/full_matrix_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_07.cc b/tests/petsc/full_matrix_07.cc
index 56226de45f..e8525516c9 100644
--- a/tests/petsc/full_matrix_07.cc
+++ b/tests/petsc/full_matrix_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_08.cc b/tests/petsc/full_matrix_08.cc
index e670cd45d5..dd6bd304c9 100644
--- a/tests/petsc/full_matrix_08.cc
+++ b/tests/petsc/full_matrix_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_09.cc b/tests/petsc/full_matrix_09.cc
index 26b55aa0e3..3f86e1ea80 100644
--- a/tests/petsc/full_matrix_09.cc
+++ b/tests/petsc/full_matrix_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_10.cc b/tests/petsc/full_matrix_10.cc
index 2b06bb8e50..0bdc25a655 100644
--- a/tests/petsc/full_matrix_10.cc
+++ b/tests/petsc/full_matrix_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_iterator_01.cc b/tests/petsc/full_matrix_iterator_01.cc
index 3006dcd891..f2a2a4e3aa 100644
--- a/tests/petsc/full_matrix_iterator_01.cc
+++ b/tests/petsc/full_matrix_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_vector_01.cc b/tests/petsc/full_matrix_vector_01.cc
index f86108848c..bd1c9c5350 100644
--- a/tests/petsc/full_matrix_vector_01.cc
+++ b/tests/petsc/full_matrix_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_vector_02.cc b/tests/petsc/full_matrix_vector_02.cc
index 56fc7978b4..c48ca67604 100644
--- a/tests/petsc/full_matrix_vector_02.cc
+++ b/tests/petsc/full_matrix_vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_vector_03.cc b/tests/petsc/full_matrix_vector_03.cc
index 809a1a045b..919b96a1e8 100644
--- a/tests/petsc/full_matrix_vector_03.cc
+++ b/tests/petsc/full_matrix_vector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_vector_04.cc b/tests/petsc/full_matrix_vector_04.cc
index 8d669c723b..07fc05f656 100644
--- a/tests/petsc/full_matrix_vector_04.cc
+++ b/tests/petsc/full_matrix_vector_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_vector_05.cc b/tests/petsc/full_matrix_vector_05.cc
index 8fddaefd3c..f7abaf5816 100644
--- a/tests/petsc/full_matrix_vector_05.cc
+++ b/tests/petsc/full_matrix_vector_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_vector_06.cc b/tests/petsc/full_matrix_vector_06.cc
index 77d5ae4571..df749dda85 100644
--- a/tests/petsc/full_matrix_vector_06.cc
+++ b/tests/petsc/full_matrix_vector_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/full_matrix_vector_07.cc b/tests/petsc/full_matrix_vector_07.cc
index 5bcb931740..1e08564390 100644
--- a/tests/petsc/full_matrix_vector_07.cc
+++ b/tests/petsc/full_matrix_vector_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/parallel_sparse_matrix_01.cc b/tests/petsc/parallel_sparse_matrix_01.cc
index 5a702741b4..9546316181 100644
--- a/tests/petsc/parallel_sparse_matrix_01.cc
+++ b/tests/petsc/parallel_sparse_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/petsc_mf_testmatrix.h b/tests/petsc/petsc_mf_testmatrix.h
index 10b264f3e5..57d81826ca 100644
--- a/tests/petsc/petsc_mf_testmatrix.h
+++ b/tests/petsc/petsc_mf_testmatrix.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2021 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/slowness_01.cc b/tests/petsc/slowness_01.cc
index 36dfeeba7f..7ed6e1c8e5 100644
--- a/tests/petsc/slowness_01.cc
+++ b/tests/petsc/slowness_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_direct_mumps.cc b/tests/petsc/sparse_direct_mumps.cc
index a07ad2d6c9..e84abb4a38 100644
--- a/tests/petsc/sparse_direct_mumps.cc
+++ b/tests/petsc/sparse_direct_mumps.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_02.cc b/tests/petsc/sparse_matrix_02.cc
index f5b33de8ff..19bff1bc05 100644
--- a/tests/petsc/sparse_matrix_02.cc
+++ b/tests/petsc/sparse_matrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_iterator_01.cc b/tests/petsc/sparse_matrix_iterator_01.cc
index 7daf3be72c..d20bd07d11 100644
--- a/tests/petsc/sparse_matrix_iterator_01.cc
+++ b/tests/petsc/sparse_matrix_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_iterator_02.cc b/tests/petsc/sparse_matrix_iterator_02.cc
index a93295e40c..91b6590f2b 100644
--- a/tests/petsc/sparse_matrix_iterator_02.cc
+++ b/tests/petsc/sparse_matrix_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2018 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_matrix_01.cc b/tests/petsc/sparse_matrix_matrix_01.cc
index 8ae27f0697..c0e2414cf0 100644
--- a/tests/petsc/sparse_matrix_matrix_01.cc
+++ b/tests/petsc/sparse_matrix_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_matrix_02.cc b/tests/petsc/sparse_matrix_matrix_02.cc
index 6b2901290d..eb18e856d6 100644
--- a/tests/petsc/sparse_matrix_matrix_02.cc
+++ b/tests/petsc/sparse_matrix_matrix_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_matrix_03.cc b/tests/petsc/sparse_matrix_matrix_03.cc
index 0df7dc111c..a0ea344e0b 100644
--- a/tests/petsc/sparse_matrix_matrix_03.cc
+++ b/tests/petsc/sparse_matrix_matrix_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_matrix_04.cc b/tests/petsc/sparse_matrix_matrix_04.cc
index 5ced1d2e32..b353919207 100644
--- a/tests/petsc/sparse_matrix_matrix_04.cc
+++ b/tests/petsc/sparse_matrix_matrix_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_vector_01.cc b/tests/petsc/sparse_matrix_vector_01.cc
index 5b43dd739f..a51e6249bd 100644
--- a/tests/petsc/sparse_matrix_vector_01.cc
+++ b/tests/petsc/sparse_matrix_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_vector_02.cc b/tests/petsc/sparse_matrix_vector_02.cc
index 66c3dc2dc4..03a598c2ec 100644
--- a/tests/petsc/sparse_matrix_vector_02.cc
+++ b/tests/petsc/sparse_matrix_vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_vector_03.cc b/tests/petsc/sparse_matrix_vector_03.cc
index 6a6085169e..cc09a9c255 100644
--- a/tests/petsc/sparse_matrix_vector_03.cc
+++ b/tests/petsc/sparse_matrix_vector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_vector_04.cc b/tests/petsc/sparse_matrix_vector_04.cc
index 757fb42a67..f4382d1ac0 100644
--- a/tests/petsc/sparse_matrix_vector_04.cc
+++ b/tests/petsc/sparse_matrix_vector_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_vector_05.cc b/tests/petsc/sparse_matrix_vector_05.cc
index 3cbac36ece..cd885a6acf 100644
--- a/tests/petsc/sparse_matrix_vector_05.cc
+++ b/tests/petsc/sparse_matrix_vector_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_vector_06.cc b/tests/petsc/sparse_matrix_vector_06.cc
index 3f53aba826..5d91a73780 100644
--- a/tests/petsc/sparse_matrix_vector_06.cc
+++ b/tests/petsc/sparse_matrix_vector_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/sparse_matrix_vector_07.cc b/tests/petsc/sparse_matrix_vector_07.cc
index f5c6ed1531..351305a0ed 100644
--- a/tests/petsc/sparse_matrix_vector_07.cc
+++ b/tests/petsc/sparse_matrix_vector_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/step-67-with-petsc-ts.cc b/tests/petsc/step-67-with-petsc-ts.cc
index 20fc1e874a..8af41e1852 100644
--- a/tests/petsc/step-67-with-petsc-ts.cc
+++ b/tests/petsc/step-67-with-petsc-ts.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/petsc/step-77-snes.cc b/tests/petsc/step-77-snes.cc
index 3633762dc5..3680d22726 100644
--- a/tests/petsc/step-77-snes.cc
+++ b/tests/petsc/step-77-snes.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2023 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/petsc/subtract_mean_value_03.cc b/tests/petsc/subtract_mean_value_03.cc
index 4bf54da905..000f4bff05 100644
--- a/tests/petsc/subtract_mean_value_03.cc
+++ b/tests/petsc/subtract_mean_value_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/vector_assign_01.cc b/tests/petsc/vector_assign_01.cc
index b1b2b4a3ed..2031ad453e 100644
--- a/tests/petsc/vector_assign_01.cc
+++ b/tests/petsc/vector_assign_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/vector_assign_02.cc b/tests/petsc/vector_assign_02.cc
index 56c9e2c877..b45c24039d 100644
--- a/tests/petsc/vector_assign_02.cc
+++ b/tests/petsc/vector_assign_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/vector_equality_1.cc b/tests/petsc/vector_equality_1.cc
index b9aacc2bde..18543ea758 100644
--- a/tests/petsc/vector_equality_1.cc
+++ b/tests/petsc/vector_equality_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/vector_equality_2.cc b/tests/petsc/vector_equality_2.cc
index c3b7ce77c9..2e0634a348 100644
--- a/tests/petsc/vector_equality_2.cc
+++ b/tests/petsc/vector_equality_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/vector_equality_3.cc b/tests/petsc/vector_equality_3.cc
index 90a9c11f4e..ec06cd7d6c 100644
--- a/tests/petsc/vector_equality_3.cc
+++ b/tests/petsc/vector_equality_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/vector_equality_4.cc b/tests/petsc/vector_equality_4.cc
index 8dcaaad6d5..f392cdd1ef 100644
--- a/tests/petsc/vector_equality_4.cc
+++ b/tests/petsc/vector_equality_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc/vector_print.cc b/tests/petsc/vector_print.cc
index 44473eb44d..f52b83d0a0 100644
--- a/tests/petsc/vector_print.cc
+++ b/tests/petsc/vector_print.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/00.cc b/tests/petsc_complex/00.cc
index 02ec7b31d4..32929fb790 100644
--- a/tests/petsc_complex/00.cc
+++ b/tests/petsc_complex/00.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/01.cc b/tests/petsc_complex/01.cc
index 6a665f8efb..10844d9285 100644
--- a/tests/petsc_complex/01.cc
+++ b/tests/petsc_complex/01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/02.cc b/tests/petsc_complex/02.cc
index fd8688770a..3cd6204c46 100644
--- a/tests/petsc_complex/02.cc
+++ b/tests/petsc_complex/02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/04.cc b/tests/petsc_complex/04.cc
index e1cea872df..7e8083e051 100644
--- a/tests/petsc_complex/04.cc
+++ b/tests/petsc_complex/04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/05.cc b/tests/petsc_complex/05.cc
index f10f2107c1..52148db955 100644
--- a/tests/petsc_complex/05.cc
+++ b/tests/petsc_complex/05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/06.cc b/tests/petsc_complex/06.cc
index 5beef7a859..feb120ec80 100644
--- a/tests/petsc_complex/06.cc
+++ b/tests/petsc_complex/06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/07.cc b/tests/petsc_complex/07.cc
index dac2a5835f..bc92c5f5c1 100644
--- a/tests/petsc_complex/07.cc
+++ b/tests/petsc_complex/07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/08.cc b/tests/petsc_complex/08.cc
index a55e4f709c..c3cd7ceb94 100644
--- a/tests/petsc_complex/08.cc
+++ b/tests/petsc_complex/08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/09.cc b/tests/petsc_complex/09.cc
index 52452e8171..318f3bd2b6 100644
--- a/tests/petsc_complex/09.cc
+++ b/tests/petsc_complex/09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/10.cc b/tests/petsc_complex/10.cc
index b87e7a33ae..a74c3806f0 100644
--- a/tests/petsc_complex/10.cc
+++ b/tests/petsc_complex/10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/11.cc b/tests/petsc_complex/11.cc
index a124e25513..3158ab6d4a 100644
--- a/tests/petsc_complex/11.cc
+++ b/tests/petsc_complex/11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/12.cc b/tests/petsc_complex/12.cc
index 775734753f..85ee6490d5 100644
--- a/tests/petsc_complex/12.cc
+++ b/tests/petsc_complex/12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/13.cc b/tests/petsc_complex/13.cc
index 95d4bb8195..6dbb0b8e38 100644
--- a/tests/petsc_complex/13.cc
+++ b/tests/petsc_complex/13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/18.cc b/tests/petsc_complex/18.cc
index d4437f07c3..f13b5e236f 100644
--- a/tests/petsc_complex/18.cc
+++ b/tests/petsc_complex/18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/19.cc b/tests/petsc_complex/19.cc
index 15cafa7d51..e50b46ee78 100644
--- a/tests/petsc_complex/19.cc
+++ b/tests/petsc_complex/19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/20.cc b/tests/petsc_complex/20.cc
index 7095d0f649..fbadb01766 100644
--- a/tests/petsc_complex/20.cc
+++ b/tests/petsc_complex/20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/element_access_00.cc b/tests/petsc_complex/element_access_00.cc
index aa15fef4e4..b70bf44765 100644
--- a/tests/petsc_complex/element_access_00.cc
+++ b/tests/petsc_complex/element_access_00.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/element_access_01.cc b/tests/petsc_complex/element_access_01.cc
index 30a0f8fec4..dbdd777d0e 100644
--- a/tests/petsc_complex/element_access_01.cc
+++ b/tests/petsc_complex/element_access_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/element_access_02.cc b/tests/petsc_complex/element_access_02.cc
index e4954d4486..f33a6c738f 100644
--- a/tests/petsc_complex/element_access_02.cc
+++ b/tests/petsc_complex/element_access_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/element_access_03.cc b/tests/petsc_complex/element_access_03.cc
index b7be3fb71f..6b4088a6c2 100644
--- a/tests/petsc_complex/element_access_03.cc
+++ b/tests/petsc_complex/element_access_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/fe_get_function_values.cc b/tests/petsc_complex/fe_get_function_values.cc
index f09b608f12..fb7055860f 100644
--- a/tests/petsc_complex/fe_get_function_values.cc
+++ b/tests/petsc_complex/fe_get_function_values.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/parallel_sparse_matrix_01.cc b/tests/petsc_complex/parallel_sparse_matrix_01.cc
index c0942548f1..d1443767a2 100644
--- a/tests/petsc_complex/parallel_sparse_matrix_01.cc
+++ b/tests/petsc_complex/parallel_sparse_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/solver_real_03.cc b/tests/petsc_complex/solver_real_03.cc
index 35245c1912..a12628c9b9 100644
--- a/tests/petsc_complex/solver_real_03.cc
+++ b/tests/petsc_complex/solver_real_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/solver_real_03_mf.cc b/tests/petsc_complex/solver_real_03_mf.cc
index 34b2077e28..2861353f16 100644
--- a/tests/petsc_complex/solver_real_03_mf.cc
+++ b/tests/petsc_complex/solver_real_03_mf.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/solver_real_04.cc b/tests/petsc_complex/solver_real_04.cc
index 2d2be1d427..793e6176c3 100644
--- a/tests/petsc_complex/solver_real_04.cc
+++ b/tests/petsc_complex/solver_real_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/sparse_matrix_01.cc b/tests/petsc_complex/sparse_matrix_01.cc
index d1d847fc81..7cf71cb835 100644
--- a/tests/petsc_complex/sparse_matrix_01.cc
+++ b/tests/petsc_complex/sparse_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/vector_02.cc b/tests/petsc_complex/vector_02.cc
index 6d8f69e866..1767ee4f33 100644
--- a/tests/petsc_complex/vector_02.cc
+++ b/tests/petsc_complex/vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/vector_assign_01.cc b/tests/petsc_complex/vector_assign_01.cc
index 8c654da6f3..9be8648851 100644
--- a/tests/petsc_complex/vector_assign_01.cc
+++ b/tests/petsc_complex/vector_assign_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/vector_assign_02.cc b/tests/petsc_complex/vector_assign_02.cc
index 1be040b389..eac2f763dd 100644
--- a/tests/petsc_complex/vector_assign_02.cc
+++ b/tests/petsc_complex/vector_assign_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/vector_equality_1.cc b/tests/petsc_complex/vector_equality_1.cc
index df66d14ed2..7b1493cbd9 100644
--- a/tests/petsc_complex/vector_equality_1.cc
+++ b/tests/petsc_complex/vector_equality_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/vector_equality_2.cc b/tests/petsc_complex/vector_equality_2.cc
index b29b93b3bf..6b12dc9ecd 100644
--- a/tests/petsc_complex/vector_equality_2.cc
+++ b/tests/petsc_complex/vector_equality_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/petsc_complex/vector_print.cc b/tests/petsc_complex/vector_print.cc
index 7c847a06c0..34871de814 100644
--- a/tests/petsc_complex/vector_print.cc
+++ b/tests/petsc_complex/vector_print.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/physics/notation-kelvin_01.cc b/tests/physics/notation-kelvin_01.cc
index eb9813e43c..639312273b 100644
--- a/tests/physics/notation-kelvin_01.cc
+++ b/tests/physics/notation-kelvin_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/physics/notation-kelvin_02.cc b/tests/physics/notation-kelvin_02.cc
index 27591234f8..a56aabec89 100644
--- a/tests/physics/notation-kelvin_02.cc
+++ b/tests/physics/notation-kelvin_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/physics/positive_negative_split.cc b/tests/physics/positive_negative_split.cc
index cc9d3a123c..c1a35dddf1 100644
--- a/tests/physics/positive_negative_split.cc
+++ b/tests/physics/positive_negative_split.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2023 by the deal.II Authors
+// Copyright (C) 2015 - 2024 by the deal.II Authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/physics/step-18-rotation_matrix.cc b/tests/physics/step-18-rotation_matrix.cc
index 441fe0abfe..97026ea421 100644
--- a/tests/physics/step-18-rotation_matrix.cc
+++ b/tests/physics/step-18-rotation_matrix.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2017 - 2022 by the deal.II authors
+ * Copyright (C) 2017 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/physics/step-18.cc b/tests/physics/step-18.cc
index dcde1e8266..093b7107da 100644
--- a/tests/physics/step-18.cc
+++ b/tests/physics/step-18.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2017 - 2022 by the deal.II authors
+ * Copyright (C) 2017 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/physics/step-44-dgp_monomial.cc b/tests/physics/step-44-dgp_monomial.cc
index 75eb820b49..9df945c6a7 100644
--- a/tests/physics/step-44-dgp_monomial.cc
+++ b/tests/physics/step-44-dgp_monomial.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/physics/step-44-standard_tensors-material_push_forward.cc b/tests/physics/step-44-standard_tensors-material_push_forward.cc
index 35bd62674a..e3deeaad52 100644
--- a/tests/physics/step-44-standard_tensors-material_push_forward.cc
+++ b/tests/physics/step-44-standard_tensors-material_push_forward.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/physics/step-44-standard_tensors-spatial.cc b/tests/physics/step-44-standard_tensors-spatial.cc
index 0a3838ca02..85c7b9a6f4 100644
--- a/tests/physics/step-44-standard_tensors-spatial.cc
+++ b/tests/physics/step-44-standard_tensors-spatial.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/physics/step-44.cc b/tests/physics/step-44.cc
index cd71e9bced..6b8409e3aa 100644
--- a/tests/physics/step-44.cc
+++ b/tests/physics/step-44.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/physics/transformations-rotations_01.cc b/tests/physics/transformations-rotations_01.cc
index 17329b7ee9..c240f033af 100644
--- a/tests/physics/transformations-rotations_01.cc
+++ b/tests/physics/transformations-rotations_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/quick_tests/adolc.cc b/tests/quick_tests/adolc.cc
index dfe07a2cff..48e88cce8a 100644
--- a/tests/quick_tests/adolc.cc
+++ b/tests/quick_tests/adolc.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/quick_tests/cuda.cc b/tests/quick_tests/cuda.cc
index 313b9b2e21..974d544fd5 100644
--- a/tests/quick_tests/cuda.cc
+++ b/tests/quick_tests/cuda.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/quick_tests/gmsh.cc b/tests/quick_tests/gmsh.cc
index ede9e20349..a1ace28e71 100644
--- a/tests/quick_tests/gmsh.cc
+++ b/tests/quick_tests/gmsh.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2018 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/quick_tests/lapack.cc b/tests/quick_tests/lapack.cc
index b8b87f6959..b80538fc39 100644
--- a/tests/quick_tests/lapack.cc
+++ b/tests/quick_tests/lapack.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2018 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/quick_tests/step-metis.cc b/tests/quick_tests/step-metis.cc
index 72f5362a98..982036cfe9 100644
--- a/tests/quick_tests/step-metis.cc
+++ b/tests/quick_tests/step-metis.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2013 - 2018 by the deal.II authors
+ * Copyright (C) 2013 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/quick_tests/step-petsc.cc b/tests/quick_tests/step-petsc.cc
index c85c84a687..15cf7ba656 100644
--- a/tests/quick_tests/step-petsc.cc
+++ b/tests/quick_tests/step-petsc.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2013 - 2018 by the deal.II authors
+ * Copyright (C) 2013 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/quick_tests/step-slepc.cc b/tests/quick_tests/step-slepc.cc
index 6162e09619..7a3dd093d9 100644
--- a/tests/quick_tests/step-slepc.cc
+++ b/tests/quick_tests/step-slepc.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2013 - 2021 by the deal.II authors
+ * Copyright (C) 2013 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/quick_tests/step-trilinos.cc b/tests/quick_tests/step-trilinos.cc
index a5d70615af..f6c9c06466 100644
--- a/tests/quick_tests/step-trilinos.cc
+++ b/tests/quick_tests/step-trilinos.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2013 - 2018 by the deal.II authors
+ * Copyright (C) 2013 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/quick_tests/step.cc b/tests/quick_tests/step.cc
index 38de6b8af6..03ce3f05de 100644
--- a/tests/quick_tests/step.cc
+++ b/tests/quick_tests/step.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2022 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/convert_intersections_to_rpe_data_01.cc b/tests/remote_point_evaluation/convert_intersections_to_rpe_data_01.cc
index 154c7e9aad..3f541f55fa 100644
--- a/tests/remote_point_evaluation/convert_intersections_to_rpe_data_01.cc
+++ b/tests/remote_point_evaluation/convert_intersections_to_rpe_data_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/convert_intersections_to_rpe_data_02.cc b/tests/remote_point_evaluation/convert_intersections_to_rpe_data_02.cc
index 6899b020d3..06b21b5e0e 100644
--- a/tests/remote_point_evaluation/convert_intersections_to_rpe_data_02.cc
+++ b/tests/remote_point_evaluation/convert_intersections_to_rpe_data_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/convert_intersections_to_rpe_data_03.cc b/tests/remote_point_evaluation/convert_intersections_to_rpe_data_03.cc
index 6db3bade2e..8799f1436f 100644
--- a/tests/remote_point_evaluation/convert_intersections_to_rpe_data_03.cc
+++ b/tests/remote_point_evaluation/convert_intersections_to_rpe_data_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/convert_intersections_to_rpe_data_04.cc b/tests/remote_point_evaluation/convert_intersections_to_rpe_data_04.cc
index 0ef5e9ad79..1db36ddd75 100644
--- a/tests/remote_point_evaluation/convert_intersections_to_rpe_data_04.cc
+++ b/tests/remote_point_evaluation/convert_intersections_to_rpe_data_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/data_out_resample_01.cc b/tests/remote_point_evaluation/data_out_resample_01.cc
index b353127d7c..63f04a682d 100644
--- a/tests/remote_point_evaluation/data_out_resample_01.cc
+++ b/tests/remote_point_evaluation/data_out_resample_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/data_out_resample_02.cc b/tests/remote_point_evaluation/data_out_resample_02.cc
index b1af2e9b95..aaf3c37db9 100644
--- a/tests/remote_point_evaluation/data_out_resample_02.cc
+++ b/tests/remote_point_evaluation/data_out_resample_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/distributed_compute_intersection_locations_01.cc b/tests/remote_point_evaluation/distributed_compute_intersection_locations_01.cc
index df04ab2ba8..8ffb550b54 100644
--- a/tests/remote_point_evaluation/distributed_compute_intersection_locations_01.cc
+++ b/tests/remote_point_evaluation/distributed_compute_intersection_locations_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/distributed_compute_intersection_locations_02.cc b/tests/remote_point_evaluation/distributed_compute_intersection_locations_02.cc
index 964c500df8..6c062c843f 100644
--- a/tests/remote_point_evaluation/distributed_compute_intersection_locations_02.cc
+++ b/tests/remote_point_evaluation/distributed_compute_intersection_locations_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/distributed_compute_intersection_locations_03.cc b/tests/remote_point_evaluation/distributed_compute_intersection_locations_03.cc
index b9ce15ff01..217205324b 100644
--- a/tests/remote_point_evaluation/distributed_compute_intersection_locations_03.cc
+++ b/tests/remote_point_evaluation/distributed_compute_intersection_locations_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/distributed_compute_intersection_locations_04.cc b/tests/remote_point_evaluation/distributed_compute_intersection_locations_04.cc
index 2ef97e9a82..2054f0bc9e 100644
--- a/tests/remote_point_evaluation/distributed_compute_intersection_locations_04.cc
+++ b/tests/remote_point_evaluation/distributed_compute_intersection_locations_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/mapping_01.cc b/tests/remote_point_evaluation/mapping_01.cc
index 713391e4e2..9dc7b7c22c 100644
--- a/tests/remote_point_evaluation/mapping_01.cc
+++ b/tests/remote_point_evaluation/mapping_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/mapping_02.cc b/tests/remote_point_evaluation/mapping_02.cc
index 121c711579..ba5c6d9ec8 100644
--- a/tests/remote_point_evaluation/mapping_02.cc
+++ b/tests/remote_point_evaluation/mapping_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/mapping_03.cc b/tests/remote_point_evaluation/mapping_03.cc
index ea2bf5ccd7..adbef38ddc 100644
--- a/tests/remote_point_evaluation/mapping_03.cc
+++ b/tests/remote_point_evaluation/mapping_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/mapping_04.cc b/tests/remote_point_evaluation/mapping_04.cc
index ef0f3b8210..16aa70993d 100644
--- a/tests/remote_point_evaluation/mapping_04.cc
+++ b/tests/remote_point_evaluation/mapping_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/remote_point_evaluation_01.cc b/tests/remote_point_evaluation/remote_point_evaluation_01.cc
index 9ade2a5120..5d52cca96a 100644
--- a/tests/remote_point_evaluation/remote_point_evaluation_01.cc
+++ b/tests/remote_point_evaluation/remote_point_evaluation_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/remote_point_evaluation_02.cc b/tests/remote_point_evaluation/remote_point_evaluation_02.cc
index b3db4573fc..f035b5d74f 100644
--- a/tests/remote_point_evaluation/remote_point_evaluation_02.cc
+++ b/tests/remote_point_evaluation/remote_point_evaluation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/remote_point_evaluation_03.cc b/tests/remote_point_evaluation/remote_point_evaluation_03.cc
index 6e1e52b676..55853caa5d 100644
--- a/tests/remote_point_evaluation/remote_point_evaluation_03.cc
+++ b/tests/remote_point_evaluation/remote_point_evaluation_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/setup_rpe_with_intersections_01.cc b/tests/remote_point_evaluation/setup_rpe_with_intersections_01.cc
index 0ad1c42f71..0c359914f0 100644
--- a/tests/remote_point_evaluation/setup_rpe_with_intersections_01.cc
+++ b/tests/remote_point_evaluation/setup_rpe_with_intersections_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/setup_rpe_with_intersections_02.cc b/tests/remote_point_evaluation/setup_rpe_with_intersections_02.cc
index d9f2854ebf..f62570b071 100644
--- a/tests/remote_point_evaluation/setup_rpe_with_intersections_02.cc
+++ b/tests/remote_point_evaluation/setup_rpe_with_intersections_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/setup_rpe_with_intersections_03.cc b/tests/remote_point_evaluation/setup_rpe_with_intersections_03.cc
index 2efb97faaa..15df74d99c 100644
--- a/tests/remote_point_evaluation/setup_rpe_with_intersections_03.cc
+++ b/tests/remote_point_evaluation/setup_rpe_with_intersections_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/setup_rpe_with_intersections_04.cc b/tests/remote_point_evaluation/setup_rpe_with_intersections_04.cc
index 952721b2a2..a2d3526cfe 100644
--- a/tests/remote_point_evaluation/setup_rpe_with_intersections_04.cc
+++ b/tests/remote_point_evaluation/setup_rpe_with_intersections_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2023 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_01.cc b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_01.cc
index 64198439f1..bdbc8b592c 100644
--- a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_01.cc
+++ b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_02.cc b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_02.cc
index aa9f08357e..2c5ecc69e1 100644
--- a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_02.cc
+++ b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_03.cc b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_03.cc
index 29a96ce5d6..d173885bfc 100644
--- a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_03.cc
+++ b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_04.cc b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_04.cc
index 52f31335c0..d157697b68 100644
--- a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_04.cc
+++ b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_05.cc b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_05.cc
index 635080f419..04ebe2c725 100644
--- a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_05.cc
+++ b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_06.cc b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_06.cc
index a19ac97833..460a881889 100644
--- a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_06.cc
+++ b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_07.cc b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_07.cc
index 19c7084a8a..53854a9176 100644
--- a/tests/remote_point_evaluation/vector_tools_evaluate_at_points_07.cc
+++ b/tests/remote_point_evaluation/vector_tools_evaluate_at_points_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/rol/vector_adaptor_01.cc b/tests/rol/vector_adaptor_01.cc
index 91573661bf..201b31d69c 100644
--- a/tests/rol/vector_adaptor_01.cc
+++ b/tests/rol/vector_adaptor_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/rol/vector_adaptor_02.cc b/tests/rol/vector_adaptor_02.cc
index f2838c2f74..8d6ffb986e 100644
--- a/tests/rol/vector_adaptor_02.cc
+++ b/tests/rol/vector_adaptor_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2022 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/rol/vector_adaptor_apply_binary_01.cc b/tests/rol/vector_adaptor_apply_binary_01.cc
index e36caf392b..2863e3c4c3 100644
--- a/tests/rol/vector_adaptor_apply_binary_01.cc
+++ b/tests/rol/vector_adaptor_apply_binary_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/rol/vector_adaptor_no_ghost_01.cc b/tests/rol/vector_adaptor_no_ghost_01.cc
index d5136fc7fd..c235fc1277 100644
--- a/tests/rol/vector_adaptor_no_ghost_01.cc
+++ b/tests/rol/vector_adaptor_no_ghost_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/rol/vector_adaptor_with_ghost_01.cc b/tests/rol/vector_adaptor_with_ghost_01.cc
index ee13df9aed..2a44081eed 100644
--- a/tests/rol/vector_adaptor_with_ghost_01.cc
+++ b/tests/rol/vector_adaptor_with_ghost_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/ad_number_traits_01.cc b/tests/sacado/ad_number_traits_01.cc
index 091f413b96..ab37e71283 100644
--- a/tests/sacado/ad_number_traits_01.cc
+++ b/tests/sacado/ad_number_traits_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/basic_01.cc b/tests/sacado/basic_01.cc
index 8dc6574083..bc5ac49752 100644
--- a/tests/sacado/basic_01.cc
+++ b/tests/sacado/basic_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/basic_01a.cc b/tests/sacado/basic_01a.cc
index 1868720ca0..65d001a1ad 100644
--- a/tests/sacado/basic_01a.cc
+++ b/tests/sacado/basic_01a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/basic_01b.cc b/tests/sacado/basic_01b.cc
index 2fc0757f38..08f5fbb47f 100644
--- a/tests/sacado/basic_01b.cc
+++ b/tests/sacado/basic_01b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/basic_02.cc b/tests/sacado/basic_02.cc
index 034e539032..e5ef98f660 100644
--- a/tests/sacado/basic_02.cc
+++ b/tests/sacado/basic_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/basic_02a.cc b/tests/sacado/basic_02a.cc
index c6f7453643..313b6f57b0 100644
--- a/tests/sacado/basic_02a.cc
+++ b/tests/sacado/basic_02a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/basic_02b.cc b/tests/sacado/basic_02b.cc
index 145290ad81..1aba432280 100644
--- a/tests/sacado/basic_02b.cc
+++ b/tests/sacado/basic_02b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/sacado_product_type_04.cc b/tests/sacado/sacado_product_type_04.cc
index f74800eb31..fcac5cf7a6 100644
--- a/tests/sacado/sacado_product_type_04.cc
+++ b/tests/sacado/sacado_product_type_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_res_lin_01_1.cc b/tests/sacado/step-44-helper_res_lin_01_1.cc
index 4a56d6708c..ba6f7c42d1 100644
--- a/tests/sacado/step-44-helper_res_lin_01_1.cc
+++ b/tests/sacado/step-44-helper_res_lin_01_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_res_lin_01_2.cc b/tests/sacado/step-44-helper_res_lin_01_2.cc
index 648633f1bb..c1d16e0e48 100644
--- a/tests/sacado/step-44-helper_res_lin_01_2.cc
+++ b/tests/sacado/step-44-helper_res_lin_01_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_res_lin_01_3.cc b/tests/sacado/step-44-helper_res_lin_01_3.cc
index b997981b85..9875a2735e 100644
--- a/tests/sacado/step-44-helper_res_lin_01_3.cc
+++ b/tests/sacado/step-44-helper_res_lin_01_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_res_lin_01_4.cc b/tests/sacado/step-44-helper_res_lin_01_4.cc
index 257197e5b3..75931ad3fa 100644
--- a/tests/sacado/step-44-helper_res_lin_01_4.cc
+++ b/tests/sacado/step-44-helper_res_lin_01_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_scalar_01_1.cc b/tests/sacado/step-44-helper_scalar_01_1.cc
index 53abda6d98..7d19add126 100644
--- a/tests/sacado/step-44-helper_scalar_01_1.cc
+++ b/tests/sacado/step-44-helper_scalar_01_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_scalar_01_2.cc b/tests/sacado/step-44-helper_scalar_01_2.cc
index 164df25b16..c0d68bb577 100644
--- a/tests/sacado/step-44-helper_scalar_01_2.cc
+++ b/tests/sacado/step-44-helper_scalar_01_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_var_form_01_1.cc b/tests/sacado/step-44-helper_var_form_01_1.cc
index 394c8e66e0..d5dab16f15 100644
--- a/tests/sacado/step-44-helper_var_form_01_1.cc
+++ b/tests/sacado/step-44-helper_var_form_01_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_var_form_01_2.cc b/tests/sacado/step-44-helper_var_form_01_2.cc
index c702bef680..393e1cf58d 100644
--- a/tests/sacado/step-44-helper_var_form_01_2.cc
+++ b/tests/sacado/step-44-helper_var_form_01_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_vector_01_1.cc b/tests/sacado/step-44-helper_vector_01_1.cc
index 53818c9a6c..1c98e19a38 100644
--- a/tests/sacado/step-44-helper_vector_01_1.cc
+++ b/tests/sacado/step-44-helper_vector_01_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_vector_01_2.cc b/tests/sacado/step-44-helper_vector_01_2.cc
index 9862a63b2e..7961ca5482 100644
--- a/tests/sacado/step-44-helper_vector_01_2.cc
+++ b/tests/sacado/step-44-helper_vector_01_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_vector_01_3.cc b/tests/sacado/step-44-helper_vector_01_3.cc
index ba6aaab9ce..7ac42a8b06 100644
--- a/tests/sacado/step-44-helper_vector_01_3.cc
+++ b/tests/sacado/step-44-helper_vector_01_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/step-44-helper_vector_01_4.cc b/tests/sacado/step-44-helper_vector_01_4.cc
index 664dd4f155..6b79f24c49 100644
--- a/tests/sacado/step-44-helper_vector_01_4.cc
+++ b/tests/sacado/step-44-helper_vector_01_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sacado/tensor_01.cc b/tests/sacado/tensor_01.cc
index d5d21b21be..827b7655c8 100644
--- a/tests/sacado/tensor_01.cc
+++ b/tests/sacado/tensor_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/serialization/parallel_fullydistributed_construction_data_1.cc b/tests/serialization/parallel_fullydistributed_construction_data_1.cc
index 0a8934acdc..cdd3cbc4fa 100644
--- a/tests/serialization/parallel_fullydistributed_construction_data_1.cc
+++ b/tests/serialization/parallel_fullydistributed_construction_data_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/serialization/particle_handler_01.cc b/tests/serialization/particle_handler_01.cc
index 35e7ee551d..0c6c068bf6 100644
--- a/tests/serialization/particle_handler_01.cc
+++ b/tests/serialization/particle_handler_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/serialization/particle_handler_02.cc b/tests/serialization/particle_handler_02.cc
index 90da16cc77..c953a10b2c 100644
--- a/tests/serialization/particle_handler_02.cc
+++ b/tests/serialization/particle_handler_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/serialization/particle_handler_03.cc b/tests/serialization/particle_handler_03.cc
index ceea19e1d4..37923b9e15 100644
--- a/tests/serialization/particle_handler_03.cc
+++ b/tests/serialization/particle_handler_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/serialization/particle_handler_04.cc b/tests/serialization/particle_handler_04.cc
index 706a5d9892..857d68d517 100644
--- a/tests/serialization/particle_handler_04.cc
+++ b/tests/serialization/particle_handler_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2021 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/serialization/pointer_03.cc b/tests/serialization/pointer_03.cc
index 4c7bbed04a..a52647c13f 100644
--- a/tests/serialization/pointer_03.cc
+++ b/tests/serialization/pointer_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/serialization/pointer_05.cc b/tests/serialization/pointer_05.cc
index e657f68625..b411d89d2c 100644
--- a/tests/serialization/pointer_05.cc
+++ b/tests/serialization/pointer_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2010 - 2018 by the deal.II authors
+// Copyright (C) 2010 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sharedtria/serialization_01.cc b/tests/sharedtria/serialization_01.cc
index be4727367e..426408cddf 100644
--- a/tests/sharedtria/serialization_01.cc
+++ b/tests/sharedtria/serialization_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2018 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sharedtria/tria_01.cc b/tests/sharedtria/tria_01.cc
index dedcd49fe1..934147d8ac 100644
--- a/tests/sharedtria/tria_01.cc
+++ b/tests/sharedtria/tria_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2022 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sharedtria/tria_02.cc b/tests/sharedtria/tria_02.cc
index 6ab5561810..da28643fe7 100644
--- a/tests/sharedtria/tria_02.cc
+++ b/tests/sharedtria/tria_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2022 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sharedtria/tria_multigrid_01.cc b/tests/sharedtria/tria_multigrid_01.cc
index a3cdf66355..bb28bad66c 100644
--- a/tests/sharedtria/tria_multigrid_01.cc
+++ b/tests/sharedtria/tria_multigrid_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2018 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sharedtria/tria_zorder_01.cc b/tests/sharedtria/tria_zorder_01.cc
index 4ea3bf1d4d..2a31df28c1 100644
--- a/tests/sharedtria/tria_zorder_01.cc
+++ b/tests/sharedtria/tria_zorder_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2018 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/barycentric_01.cc b/tests/simplex/barycentric_01.cc
index 89e7765504..44e26a05af 100644
--- a/tests/simplex/barycentric_01.cc
+++ b/tests/simplex/barycentric_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/cell_measure_01.cc b/tests/simplex/cell_measure_01.cc
index d3994b3abc..9c73c28816 100644
--- a/tests/simplex/cell_measure_01.cc
+++ b/tests/simplex/cell_measure_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/compute_point_locations_01.cc b/tests/simplex/compute_point_locations_01.cc
index 3c1b2e4bfc..d9cbb30fb1 100644
--- a/tests/simplex/compute_point_locations_01.cc
+++ b/tests/simplex/compute_point_locations_01.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/compute_projection_matrices_01.cc b/tests/simplex/compute_projection_matrices_01.cc
index 918fa6970a..4db35e03a1 100644
--- a/tests/simplex/compute_projection_matrices_01.cc
+++ b/tests/simplex/compute_projection_matrices_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/convert_hypercube_to_simplex_mesh_01.cc b/tests/simplex/convert_hypercube_to_simplex_mesh_01.cc
index da1b8ef05b..65971aa37e 100644
--- a/tests/simplex/convert_hypercube_to_simplex_mesh_01.cc
+++ b/tests/simplex/convert_hypercube_to_simplex_mesh_01.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/convert_hypercube_to_simplex_mesh_02.cc b/tests/simplex/convert_hypercube_to_simplex_mesh_02.cc
index 41e07255a5..cbee10c499 100644
--- a/tests/simplex/convert_hypercube_to_simplex_mesh_02.cc
+++ b/tests/simplex/convert_hypercube_to_simplex_mesh_02.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2022 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/data_out_faces_01.cc b/tests/simplex/data_out_faces_01.cc
index 8fe2b57da2..b6909fb10e 100644
--- a/tests/simplex/data_out_faces_01.cc
+++ b/tests/simplex/data_out_faces_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_gnuplot_01.cc b/tests/simplex/data_out_write_gnuplot_01.cc
index 3c476fc1f5..771222201c 100644
--- a/tests/simplex/data_out_write_gnuplot_01.cc
+++ b/tests/simplex/data_out_write_gnuplot_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_gnuplot_02.cc b/tests/simplex/data_out_write_gnuplot_02.cc
index b4a2df6649..b66999eab1 100644
--- a/tests/simplex/data_out_write_gnuplot_02.cc
+++ b/tests/simplex/data_out_write_gnuplot_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_gnuplot_03.cc b/tests/simplex/data_out_write_gnuplot_03.cc
index 95da2ec587..6de9cef335 100644
--- a/tests/simplex/data_out_write_gnuplot_03.cc
+++ b/tests/simplex/data_out_write_gnuplot_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_hdf5_01.cc b/tests/simplex/data_out_write_hdf5_01.cc
index 99a92b50ec..e1e5b13898 100644
--- a/tests/simplex/data_out_write_hdf5_01.cc
+++ b/tests/simplex/data_out_write_hdf5_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_hdf5_02.cc b/tests/simplex/data_out_write_hdf5_02.cc
index aa02b10dd2..7c3ac445b4 100644
--- a/tests/simplex/data_out_write_hdf5_02.cc
+++ b/tests/simplex/data_out_write_hdf5_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_vtk_01.cc b/tests/simplex/data_out_write_vtk_01.cc
index fc060399bc..2e7a711ebf 100644
--- a/tests/simplex/data_out_write_vtk_01.cc
+++ b/tests/simplex/data_out_write_vtk_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_vtk_02.cc b/tests/simplex/data_out_write_vtk_02.cc
index b049d41ff8..b28ae7734c 100644
--- a/tests/simplex/data_out_write_vtk_02.cc
+++ b/tests/simplex/data_out_write_vtk_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_vtk_03.cc b/tests/simplex/data_out_write_vtk_03.cc
index dd712e14cb..1198851c1f 100644
--- a/tests/simplex/data_out_write_vtk_03.cc
+++ b/tests/simplex/data_out_write_vtk_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_vtk_04.cc b/tests/simplex/data_out_write_vtk_04.cc
index 09993c6ecc..6d97d79041 100644
--- a/tests/simplex/data_out_write_vtk_04.cc
+++ b/tests/simplex/data_out_write_vtk_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/data_out_write_vtu_01.cc b/tests/simplex/data_out_write_vtu_01.cc
index f7e296171f..ad644942f7 100644
--- a/tests/simplex/data_out_write_vtu_01.cc
+++ b/tests/simplex/data_out_write_vtu_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/extract_boundary_dofs.cc b/tests/simplex/extract_boundary_dofs.cc
index 425031bdbe..9ee58cfaeb 100644
--- a/tests/simplex/extract_boundary_dofs.cc
+++ b/tests/simplex/extract_boundary_dofs.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/fe_lib_01.cc b/tests/simplex/fe_lib_01.cc
index f01a8908c8..89a1851c70 100644
--- a/tests/simplex/fe_lib_01.cc
+++ b/tests/simplex/fe_lib_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/fe_lib_02.cc b/tests/simplex/fe_lib_02.cc
index ecc53b59d6..0e69efa79e 100644
--- a/tests/simplex/fe_lib_02.cc
+++ b/tests/simplex/fe_lib_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/fe_p_bubbles_01.cc b/tests/simplex/fe_p_bubbles_01.cc
index 35f54196e3..4522b293f4 100644
--- a/tests/simplex/fe_p_bubbles_01.cc
+++ b/tests/simplex/fe_p_bubbles_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/fe_p_bubbles_02.cc b/tests/simplex/fe_p_bubbles_02.cc
index 7980d23167..36f5ca4f1b 100644
--- a/tests/simplex/fe_p_bubbles_02.cc
+++ b/tests/simplex/fe_p_bubbles_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/fe_p_bubbles_03.cc b/tests/simplex/fe_p_bubbles_03.cc
index 9d5634d3c6..f0f0eeac90 100644
--- a/tests/simplex/fe_p_bubbles_03.cc
+++ b/tests/simplex/fe_p_bubbles_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2022 - 2022 by the deal.II authors
+// Copyright (C) 2022 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/get_boundary_ids_01.cc b/tests/simplex/get_boundary_ids_01.cc
index 67de73871e..abee05e2f9 100644
--- a/tests/simplex/get_boundary_ids_01.cc
+++ b/tests/simplex/get_boundary_ids_01.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/get_projection_matrix_01.cc b/tests/simplex/get_projection_matrix_01.cc
index 7a3189e8a9..390884bd50 100644
--- a/tests/simplex/get_projection_matrix_01.cc
+++ b/tests/simplex/get_projection_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/hanging_nodes.h b/tests/simplex/hanging_nodes.h
index 80a741eb17..62cc4d30de 100644
--- a/tests/simplex/hanging_nodes.h
+++ b/tests/simplex/hanging_nodes.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/mapping_01.cc b/tests/simplex/mapping_01.cc
index d8f260004d..c9434036ea 100644
--- a/tests/simplex/mapping_01.cc
+++ b/tests/simplex/mapping_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 - 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/mapping_fe_01.cc b/tests/simplex/mapping_fe_01.cc
index 094e25970d..31e3136fab 100644
--- a/tests/simplex/mapping_fe_01.cc
+++ b/tests/simplex/mapping_fe_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/mapping_fe_fields_01.cc b/tests/simplex/mapping_fe_fields_01.cc
index 33897da1e2..9a3c27c404 100644
--- a/tests/simplex/mapping_fe_fields_01.cc
+++ b/tests/simplex/mapping_fe_fields_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/mapping_fe_fields_02.cc b/tests/simplex/mapping_fe_fields_02.cc
index 86a2390ff1..2885c47a7c 100644
--- a/tests/simplex/mapping_fe_fields_02.cc
+++ b/tests/simplex/mapping_fe_fields_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/mapping_transformations_01.cc b/tests/simplex/mapping_transformations_01.cc
index bd53a7a2f8..c875878b54 100644
--- a/tests/simplex/mapping_transformations_01.cc
+++ b/tests/simplex/mapping_transformations_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/matrix_free_01.cc b/tests/simplex/matrix_free_01.cc
index 9f244ec568..fe015db946 100644
--- a/tests/simplex/matrix_free_01.cc
+++ b/tests/simplex/matrix_free_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/matrix_free_02.cc b/tests/simplex/matrix_free_02.cc
index 766e021837..d63c22b1bd 100644
--- a/tests/simplex/matrix_free_02.cc
+++ b/tests/simplex/matrix_free_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/matrix_free_03.cc b/tests/simplex/matrix_free_03.cc
index aa95d23b12..cb8c3448c3 100644
--- a/tests/simplex/matrix_free_03.cc
+++ b/tests/simplex/matrix_free_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/matrix_free_04.cc b/tests/simplex/matrix_free_04.cc
index 1de353dfef..f75d712975 100644
--- a/tests/simplex/matrix_free_04.cc
+++ b/tests/simplex/matrix_free_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/matrix_free_face_integral_01.cc b/tests/simplex/matrix_free_face_integral_01.cc
index 3b24dc2b45..0e7a9ada3d 100644
--- a/tests/simplex/matrix_free_face_integral_01.cc
+++ b/tests/simplex/matrix_free_face_integral_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/matrix_free_range_iteration_01.cc b/tests/simplex/matrix_free_range_iteration_01.cc
index d4a9d7fd5c..5846bc05b3 100644
--- a/tests/simplex/matrix_free_range_iteration_01.cc
+++ b/tests/simplex/matrix_free_range_iteration_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/matrix_free_shape_info_01.cc b/tests/simplex/matrix_free_shape_info_01.cc
index 240b51cd2b..10b02c03e8 100644
--- a/tests/simplex/matrix_free_shape_info_01.cc
+++ b/tests/simplex/matrix_free_shape_info_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/nodal_type_quadrature_01.cc b/tests/simplex/nodal_type_quadrature_01.cc
index fb1713e0ed..ca3d640849 100644
--- a/tests/simplex/nodal_type_quadrature_01.cc
+++ b/tests/simplex/nodal_type_quadrature_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2023 - 2023 by the deal.II authors
+// Copyright (C) 2023 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/orientation_02.cc b/tests/simplex/orientation_02.cc
index abe8510c6d..3e0a21a05c 100644
--- a/tests/simplex/orientation_02.cc
+++ b/tests/simplex/orientation_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/orientation_04.cc b/tests/simplex/orientation_04.cc
index fac1116f44..62c375c26a 100644
--- a/tests/simplex/orientation_04.cc
+++ b/tests/simplex/orientation_04.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2022 - 2022 by the deal.II authors
+ * Copyright (C) 2022 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/poisson_01.cc b/tests/simplex/poisson_01.cc
index f94b0b0608..d2f0ea3d10 100644
--- a/tests/simplex/poisson_01.cc
+++ b/tests/simplex/poisson_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2023 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/poisson_02.cc b/tests/simplex/poisson_02.cc
index d2d2fd25d5..d6bf99febf 100644
--- a/tests/simplex/poisson_02.cc
+++ b/tests/simplex/poisson_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/polynomials_01.cc b/tests/simplex/polynomials_01.cc
index f473b7bf80..75795412f0 100644
--- a/tests/simplex/polynomials_01.cc
+++ b/tests/simplex/polynomials_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/q_projection_01.cc b/tests/simplex/q_projection_01.cc
index 337ffdca5c..0ba61b5681 100644
--- a/tests/simplex/q_projection_01.cc
+++ b/tests/simplex/q_projection_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/quadrature_lib_01.cc b/tests/simplex/quadrature_lib_01.cc
index 0bed03a9ca..f0d1464c27 100644
--- a/tests/simplex/quadrature_lib_01.cc
+++ b/tests/simplex/quadrature_lib_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/reference_cell_kind_01.cc b/tests/simplex/reference_cell_kind_01.cc
index 43565b5a72..9c2b207b0d 100644
--- a/tests/simplex/reference_cell_kind_01.cc
+++ b/tests/simplex/reference_cell_kind_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/refinement_03.cc b/tests/simplex/refinement_03.cc
index 227c997895..17b503f196 100644
--- a/tests/simplex/refinement_03.cc
+++ b/tests/simplex/refinement_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/simplex_grids.h b/tests/simplex/simplex_grids.h
index 5f00e8afd3..8d4e390b1d 100644
--- a/tests/simplex/simplex_grids.h
+++ b/tests/simplex/simplex_grids.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/simplex_project_cg.cc b/tests/simplex/simplex_project_cg.cc
index 686e943a07..3e1b230c37 100644
--- a/tests/simplex/simplex_project_cg.cc
+++ b/tests/simplex/simplex_project_cg.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2022 - 2022 by the deal.II authors
+ * Copyright (C) 2022 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/simplex_project_dg.cc b/tests/simplex/simplex_project_dg.cc
index 4d277490c6..749defdc09 100644
--- a/tests/simplex/simplex_project_dg.cc
+++ b/tests/simplex/simplex_project_dg.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2022 - 2022 by the deal.II authors
+ * Copyright (C) 2022 - 2023 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-01.cc b/tests/simplex/step-01.cc
index d3661f7849..2c3952fa2f 100644
--- a/tests/simplex/step-01.cc
+++ b/tests/simplex/step-01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-02.cc b/tests/simplex/step-02.cc
index f2c81f08f4..70539f0003 100644
--- a/tests/simplex/step-02.cc
+++ b/tests/simplex/step-02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-03.cc b/tests/simplex/step-03.cc
index cef03a6c29..26893bcfec 100644
--- a/tests/simplex/step-03.cc
+++ b/tests/simplex/step-03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-04-data_out_faces.cc b/tests/simplex/step-04-data_out_faces.cc
index a9ca725c7a..45dfbb4ba3 100644
--- a/tests/simplex/step-04-data_out_faces.cc
+++ b/tests/simplex/step-04-data_out_faces.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 1999 - 2021 by the deal.II authors
+ * Copyright (C) 1999 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-04.cc b/tests/simplex/step-04.cc
index db0e069fab..bf9317ab5c 100644
--- a/tests/simplex/step-04.cc
+++ b/tests/simplex/step-04.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 1999 - 2021 by the deal.II authors
+ * Copyright (C) 1999 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-06.cc b/tests/simplex/step-06.cc
index a753f49054..b0c73ec22f 100644
--- a/tests/simplex/step-06.cc
+++ b/tests/simplex/step-06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-07.cc b/tests/simplex/step-07.cc
index ad66b09ad8..cfea5c6b08 100644
--- a/tests/simplex/step-07.cc
+++ b/tests/simplex/step-07.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2000 - 2021 by the deal.II authors
+ * Copyright (C) 2000 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-08.cc b/tests/simplex/step-08.cc
index 5ca546b99f..e300cff76e 100644
--- a/tests/simplex/step-08.cc
+++ b/tests/simplex/step-08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-12.cc b/tests/simplex/step-12.cc
index e0407d2484..82d68059bf 100644
--- a/tests/simplex/step-12.cc
+++ b/tests/simplex/step-12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-12a.cc b/tests/simplex/step-12a.cc
index 58bdb18410..1ce90a52b8 100644
--- a/tests/simplex/step-12a.cc
+++ b/tests/simplex/step-12a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-12b.cc b/tests/simplex/step-12b.cc
index 982b7a7da6..501ade9283 100644
--- a/tests/simplex/step-12b.cc
+++ b/tests/simplex/step-12b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-12c.cc b/tests/simplex/step-12c.cc
index 7ec7e7026f..308cd8fc0f 100644
--- a/tests/simplex/step-12c.cc
+++ b/tests/simplex/step-12c.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2023 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-17.cc b/tests/simplex/step-17.cc
index 776686a9a8..ac769fc76d 100644
--- a/tests/simplex/step-17.cc
+++ b/tests/simplex/step-17.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2000 - 2022 by the deal.II authors
+ * Copyright (C) 2000 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-18.cc b/tests/simplex/step-18.cc
index 7521e47e5e..9f45a881b1 100644
--- a/tests/simplex/step-18.cc
+++ b/tests/simplex/step-18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-20.cc b/tests/simplex/step-20.cc
index 1020920317..3f71e6be82 100644
--- a/tests/simplex/step-20.cc
+++ b/tests/simplex/step-20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-23.cc b/tests/simplex/step-23.cc
index d4fcd2c8fc..10545d7d24 100644
--- a/tests/simplex/step-23.cc
+++ b/tests/simplex/step-23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-31.cc b/tests/simplex/step-31.cc
index 3ecb50b199..1f81510ebf 100644
--- a/tests/simplex/step-31.cc
+++ b/tests/simplex/step-31.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/step-38.cc b/tests/simplex/step-38.cc
index b062ce7107..40796f66a4 100644
--- a/tests/simplex/step-38.cc
+++ b/tests/simplex/step-38.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2010 - 2022 by the deal.II authors
+ * Copyright (C) 2010 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-40.cc b/tests/simplex/step-40.cc
index a82c583384..20164daccc 100644
--- a/tests/simplex/step-40.cc
+++ b/tests/simplex/step-40.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2009 - 2022 by the deal.II authors
+ * Copyright (C) 2009 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-55.cc b/tests/simplex/step-55.cc
index 3df1dea8a9..dcd57c6611 100644
--- a/tests/simplex/step-55.cc
+++ b/tests/simplex/step-55.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2016 - 2021 by the deal.II authors
+ * Copyright (C) 2016 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-67.cc b/tests/simplex/step-67.cc
index 5693d681d8..3c798cc85d 100644
--- a/tests/simplex/step-67.cc
+++ b/tests/simplex/step-67.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2023 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-68.cc b/tests/simplex/step-68.cc
index 524aac8696..1828d66bef 100644
--- a/tests/simplex/step-68.cc
+++ b/tests/simplex/step-68.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2020 - 2023 by the deal.II authors
+ * Copyright (C) 2020 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/simplex/step-74.cc b/tests/simplex/step-74.cc
index 9f0d1bd241..66c7ec4811 100644
--- a/tests/simplex/step-74.cc
+++ b/tests/simplex/step-74.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2021 - 2022 by the deal.II authors
+// Copyright (C) 2021 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/unit_tangential_vectors_01.cc b/tests/simplex/unit_tangential_vectors_01.cc
index 70529f7ad5..a568b0d590 100644
--- a/tests/simplex/unit_tangential_vectors_01.cc
+++ b/tests/simplex/unit_tangential_vectors_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/variable_face_quadratures_01.cc b/tests/simplex/variable_face_quadratures_01.cc
index 6e6569e216..65cd6178b0 100644
--- a/tests/simplex/variable_face_quadratures_01.cc
+++ b/tests/simplex/variable_face_quadratures_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/variable_face_quadratures_02.cc b/tests/simplex/variable_face_quadratures_02.cc
index 151aaa51c1..0125d86a47 100644
--- a/tests/simplex/variable_face_quadratures_02.cc
+++ b/tests/simplex/variable_face_quadratures_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/variable_face_quadratures_03.cc b/tests/simplex/variable_face_quadratures_03.cc
index 332a73572b..19699763cc 100644
--- a/tests/simplex/variable_face_quadratures_03.cc
+++ b/tests/simplex/variable_face_quadratures_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/simplex/wedge_01.cc b/tests/simplex/wedge_01.cc
index d9f7181d4e..98aa85c9ff 100644
--- a/tests/simplex/wedge_01.cc
+++ b/tests/simplex/wedge_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/slepc/solve_01.cc b/tests/slepc/solve_01.cc
index 7eaf5c5ec1..e3ef634cdd 100644
--- a/tests/slepc/solve_01.cc
+++ b/tests/slepc/solve_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/slepc/solve_04.cc b/tests/slepc/solve_04.cc
index 5ac5309797..2c93ffebd7 100644
--- a/tests/slepc/solve_04.cc
+++ b/tests/slepc/solve_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/slepc/step-36_parallel.cc b/tests/slepc/step-36_parallel.cc
index e37f0a4fe9..6868ee0d38 100644
--- a/tests/slepc/step-36_parallel.cc
+++ b/tests/slepc/step-36_parallel.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/slepc/step-36_parallel_02.cc b/tests/slepc/step-36_parallel_02.cc
index d25561fc52..699fc18aa4 100644
--- a/tests/slepc/step-36_parallel_02.cc
+++ b/tests/slepc/step-36_parallel_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/slepc/step-36_parallel_03.cc b/tests/slepc/step-36_parallel_03.cc
index 2efc0e9fce..38810f7ebb 100644
--- a/tests/slepc/step-36_parallel_03.cc
+++ b/tests/slepc/step-36_parallel_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sparsity/flux_sparsity_pattern_visiting_once.cc b/tests/sparsity/flux_sparsity_pattern_visiting_once.cc
index db62a99206..f28dd2951e 100644
--- a/tests/sparsity/flux_sparsity_pattern_visiting_once.cc
+++ b/tests/sparsity/flux_sparsity_pattern_visiting_once.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2023 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/sparsity/sparsity_pattern_common.h b/tests/sparsity/sparsity_pattern_common.h
index 1df1135266..3186aead09 100644
--- a/tests/sparsity/sparsity_pattern_common.h
+++ b/tests/sparsity/sparsity_pattern_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/sundials/n_vector.cc b/tests/sundials/n_vector.cc
index 72c18e0c13..0fff81e254 100644
--- a/tests/sundials/n_vector.cc
+++ b/tests/sundials/n_vector.cc
@@ -1,6 +1,6 @@
 //-----------------------------------------------------------
 //
-//    Copyright (C) 2020 - 2023 by the deal.II authors
+//    Copyright (C) 2020 - 2024 by the deal.II authors
 //
 //    This file is part of the deal.II library.
 //
diff --git a/tests/sundials/step-77.cc b/tests/sundials/step-77.cc
index 5779233bf5..50161a2cad 100644
--- a/tests/sundials/step-77.cc
+++ b/tests/sundials/step-77.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2023 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/symengine/basic_03.cc b/tests/symengine/basic_03.cc
index 295c35cd04..7f20066335 100644
--- a/tests/symengine/basic_03.cc
+++ b/tests/symengine/basic_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/basic_05.cc b/tests/symengine/basic_05.cc
index 8f6586fbb4..509ef001d2 100644
--- a/tests/symengine/basic_05.cc
+++ b/tests/symengine/basic_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2021 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/batch_optimizer_03_1a.cc b/tests/symengine/batch_optimizer_03_1a.cc
index 358eac27ef..744db061a8 100644
--- a/tests/symengine/batch_optimizer_03_1a.cc
+++ b/tests/symengine/batch_optimizer_03_1a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/cse_01.cc b/tests/symengine/cse_01.cc
index 243ba7d476..a660366090 100644
--- a/tests/symengine/cse_01.cc
+++ b/tests/symengine/cse_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/cse_02.cc b/tests/symengine/cse_02.cc
index 7982731e2c..e88b84d05a 100644
--- a/tests/symengine/cse_02.cc
+++ b/tests/symengine/cse_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/cse_04.cc b/tests/symengine/cse_04.cc
index 0f02ed7213..7ebe749f91 100644
--- a/tests/symengine/cse_04.cc
+++ b/tests/symengine/cse_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/cse_05.cc b/tests/symengine/cse_05.cc
index 1a41e21b5e..02e27c8e19 100644
--- a/tests/symengine/cse_05.cc
+++ b/tests/symengine/cse_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/batch_optimizer_02.h b/tests/symengine/sd_common_tests/batch_optimizer_02.h
index 5d9ec03cef..97bcf83c36 100644
--- a/tests/symengine/sd_common_tests/batch_optimizer_02.h
+++ b/tests/symengine/sd_common_tests/batch_optimizer_02.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/batch_optimizer_03.h b/tests/symengine/sd_common_tests/batch_optimizer_03.h
index ec83608874..2fa0aac0ef 100644
--- a/tests/symengine/sd_common_tests/batch_optimizer_03.h
+++ b/tests/symengine/sd_common_tests/batch_optimizer_03.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/batch_optimizer_04.h b/tests/symengine/sd_common_tests/batch_optimizer_04.h
index 9bf3a277a9..92dcdbfb76 100644
--- a/tests/symengine/sd_common_tests/batch_optimizer_04.h
+++ b/tests/symengine/sd_common_tests/batch_optimizer_04.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/batch_optimizer_05.h b/tests/symengine/sd_common_tests/batch_optimizer_05.h
index 326122e3fb..8c619dc3bf 100644
--- a/tests/symengine/sd_common_tests/batch_optimizer_05.h
+++ b/tests/symengine/sd_common_tests/batch_optimizer_05.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/batch_optimizer_06.h b/tests/symengine/sd_common_tests/batch_optimizer_06.h
index b68d6a1a35..d160234979 100644
--- a/tests/symengine/sd_common_tests/batch_optimizer_06.h
+++ b/tests/symengine/sd_common_tests/batch_optimizer_06.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/batch_optimizer_08.h b/tests/symengine/sd_common_tests/batch_optimizer_08.h
index 850d2e7492..beb741ed42 100644
--- a/tests/symengine/sd_common_tests/batch_optimizer_08.h
+++ b/tests/symengine/sd_common_tests/batch_optimizer_08.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/batch_optimizer_09.h b/tests/symengine/sd_common_tests/batch_optimizer_09.h
index 0a80f8e59e..1240b42ae6 100644
--- a/tests/symengine/sd_common_tests/batch_optimizer_09.h
+++ b/tests/symengine/sd_common_tests/batch_optimizer_09.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/cse_03.h b/tests/symengine/sd_common_tests/cse_03.h
index 6bc80d866a..03bcad0853 100644
--- a/tests/symengine/sd_common_tests/cse_03.h
+++ b/tests/symengine/sd_common_tests/cse_03.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/step-44-sd-quadrature_level.h b/tests/symengine/sd_common_tests/step-44-sd-quadrature_level.h
index fcbf8d8efc..83b2dd24b7 100644
--- a/tests/symengine/sd_common_tests/step-44-sd-quadrature_level.h
+++ b/tests/symengine/sd_common_tests/step-44-sd-quadrature_level.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2022 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/sd_common_tests/utilities.h b/tests/symengine/sd_common_tests/utilities.h
index 0ce28fb370..f1263750d4 100644
--- a/tests/symengine/sd_common_tests/utilities.h
+++ b/tests/symengine/sd_common_tests/utilities.h
@@ -1,7 +1,7 @@
 
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 - 2021 by the deal.II authors
+// Copyright (C) 2020 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/step-44-sd-quadrature_level_01.cc b/tests/symengine/step-44-sd-quadrature_level_01.cc
index 8eba8e1367..1aa46af6d6 100644
--- a/tests/symengine/step-44-sd-quadrature_level_01.cc
+++ b/tests/symengine/step-44-sd-quadrature_level_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/step-44-sd-quadrature_level_02.cc b/tests/symengine/step-44-sd-quadrature_level_02.cc
index e02aa75361..fcbb9e86fd 100644
--- a/tests/symengine/step-44-sd-quadrature_level_02.cc
+++ b/tests/symengine/step-44-sd-quadrature_level_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/symengine/step-44-sd-quadrature_level_03.cc b/tests/symengine/step-44-sd-quadrature_level_03.cc
index 4d01184c48..d8d38d9896 100644
--- a/tests/symengine/step-44-sd-quadrature_level_03.cc
+++ b/tests/symengine/step-44-sd-quadrature_level_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2020 by the deal.II authors
+// Copyright (C) 2020 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/tensors/constexpr_symmetric_tensor.cc b/tests/tensors/constexpr_symmetric_tensor.cc
index 82191bbb32..4f762b17bc 100644
--- a/tests/tensors/constexpr_symmetric_tensor.cc
+++ b/tests/tensors/constexpr_symmetric_tensor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/tensors/constexpr_tensor.cc b/tests/tensors/constexpr_tensor.cc
index 504ebf0eeb..9ab68fde09 100644
--- a/tests/tensors/constexpr_tensor.cc
+++ b/tests/tensors/constexpr_tensor.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2022 by the deal.II authors
+// Copyright (C) 2019 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/tensors/project_orthogonal.cc b/tests/tensors/project_orthogonal.cc
index d3cad40cd7..679b3fbf20 100644
--- a/tests/tensors/project_orthogonal.cc
+++ b/tests/tensors/project_orthogonal.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2019 - 2020 by the deal.II authors
+// Copyright (C) 2019 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/tensors/symmetric_tensor_19.cc b/tests/tensors/symmetric_tensor_19.cc
index 7fa9f585b8..6b8003d28b 100644
--- a/tests/tensors/symmetric_tensor_19.cc
+++ b/tests/tensors/symmetric_tensor_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2020 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/tensors/symmetric_tensor_36.cc b/tests/tensors/symmetric_tensor_36.cc
index 5736dd9ec3..a54f5113a1 100644
--- a/tests/tensors/symmetric_tensor_36.cc
+++ b/tests/tensors/symmetric_tensor_36.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2022 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/tensors/symmetric_tensor_37.cc b/tests/tensors/symmetric_tensor_37.cc
index 0e51426461..bf72d2be6c 100644
--- a/tests/tensors/symmetric_tensor_37.cc
+++ b/tests/tensors/symmetric_tensor_37.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/tensors/tensor_31.cc b/tests/tensors/tensor_31.cc
index ba8e39bff1..14f199b753 100644
--- a/tests/tensors/tensor_31.cc
+++ b/tests/tensors/tensor_31.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2021 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/tensors/tensor_accessors_01.cc b/tests/tensors/tensor_accessors_01.cc
index d78d8ee189..7450b4db08 100644
--- a/tests/tensors/tensor_accessors_01.cc
+++ b/tests/tensors/tensor_accessors_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 1998 - 2022 by the deal.II authors
+// Copyright (C) 1998 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/test_grids.h b/tests/test_grids.h
index 182d2a0477..28e22be08e 100644
--- a/tests/test_grids.h
+++ b/tests/test_grids.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2006 - 2021 by the deal.II authors
+// Copyright (C) 2006 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/01.cc b/tests/trilinos/01.cc
index 171d0ed518..6d86351a92 100644
--- a/tests/trilinos/01.cc
+++ b/tests/trilinos/01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/02.cc b/tests/trilinos/02.cc
index 89bdfc4fb6..56e8b7fc8b 100644
--- a/tests/trilinos/02.cc
+++ b/tests/trilinos/02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/03a.cc b/tests/trilinos/03a.cc
index 5aa1a10e09..f40d8c7b88 100644
--- a/tests/trilinos/03a.cc
+++ b/tests/trilinos/03a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/03b.cc b/tests/trilinos/03b.cc
index 2b489a5c2a..a9225036ed 100644
--- a/tests/trilinos/03b.cc
+++ b/tests/trilinos/03b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/04.cc b/tests/trilinos/04.cc
index 135846306d..701b5ee499 100644
--- a/tests/trilinos/04.cc
+++ b/tests/trilinos/04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/05.cc b/tests/trilinos/05.cc
index 864bcf627d..ab253843bf 100644
--- a/tests/trilinos/05.cc
+++ b/tests/trilinos/05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/06.cc b/tests/trilinos/06.cc
index cc161c2055..3e0ad8c6b3 100644
--- a/tests/trilinos/06.cc
+++ b/tests/trilinos/06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/07.cc b/tests/trilinos/07.cc
index 8d3c129a01..6b41e0716d 100644
--- a/tests/trilinos/07.cc
+++ b/tests/trilinos/07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/08.cc b/tests/trilinos/08.cc
index 7dca54514c..0c8a7e8178 100644
--- a/tests/trilinos/08.cc
+++ b/tests/trilinos/08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/09.cc b/tests/trilinos/09.cc
index 6d8455ecf6..1a577007a8 100644
--- a/tests/trilinos/09.cc
+++ b/tests/trilinos/09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/10.cc b/tests/trilinos/10.cc
index bb41b050f3..9289f98950 100644
--- a/tests/trilinos/10.cc
+++ b/tests/trilinos/10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/11.cc b/tests/trilinos/11.cc
index 419f7b668b..7238611202 100644
--- a/tests/trilinos/11.cc
+++ b/tests/trilinos/11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/12.cc b/tests/trilinos/12.cc
index 9717f18dc5..06a2b1bba4 100644
--- a/tests/trilinos/12.cc
+++ b/tests/trilinos/12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/13.cc b/tests/trilinos/13.cc
index 4320f44b06..b0ba9170b5 100644
--- a/tests/trilinos/13.cc
+++ b/tests/trilinos/13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/14.cc b/tests/trilinos/14.cc
index c06ae961b2..9af56624a6 100644
--- a/tests/trilinos/14.cc
+++ b/tests/trilinos/14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/15.cc b/tests/trilinos/15.cc
index 8b5359cbcc..81f21d61c0 100644
--- a/tests/trilinos/15.cc
+++ b/tests/trilinos/15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/16.cc b/tests/trilinos/16.cc
index affa05c7f5..bc38f615e5 100644
--- a/tests/trilinos/16.cc
+++ b/tests/trilinos/16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/17.cc b/tests/trilinos/17.cc
index 57931d5be2..f423e83606 100644
--- a/tests/trilinos/17.cc
+++ b/tests/trilinos/17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/18.cc b/tests/trilinos/18.cc
index 7f19f31921..05556bf9e5 100644
--- a/tests/trilinos/18.cc
+++ b/tests/trilinos/18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/19.cc b/tests/trilinos/19.cc
index eb9545c606..56b5dc23ab 100644
--- a/tests/trilinos/19.cc
+++ b/tests/trilinos/19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/20.cc b/tests/trilinos/20.cc
index 5a9bfb02a1..3254dbae83 100644
--- a/tests/trilinos/20.cc
+++ b/tests/trilinos/20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/21.cc b/tests/trilinos/21.cc
index 3e609f28bb..1c7e591d51 100644
--- a/tests/trilinos/21.cc
+++ b/tests/trilinos/21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/22.cc b/tests/trilinos/22.cc
index 39088448b1..1bbbb42ba9 100644
--- a/tests/trilinos/22.cc
+++ b/tests/trilinos/22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/23.cc b/tests/trilinos/23.cc
index cf8daa857e..e69d6c3156 100644
--- a/tests/trilinos/23.cc
+++ b/tests/trilinos/23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/24.cc b/tests/trilinos/24.cc
index 930ed64b32..03b4d1a8f9 100644
--- a/tests/trilinos/24.cc
+++ b/tests/trilinos/24.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/26.cc b/tests/trilinos/26.cc
index 72f4b3964b..fbceddd1ea 100644
--- a/tests/trilinos/26.cc
+++ b/tests/trilinos/26.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/27.cc b/tests/trilinos/27.cc
index 59c1b92df0..fcc1e7fa7c 100644
--- a/tests/trilinos/27.cc
+++ b/tests/trilinos/27.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/28.cc b/tests/trilinos/28.cc
index 572d4da130..03595650e9 100644
--- a/tests/trilinos/28.cc
+++ b/tests/trilinos/28.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/29.cc b/tests/trilinos/29.cc
index 9accc3de19..a2eb036efd 100644
--- a/tests/trilinos/29.cc
+++ b/tests/trilinos/29.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/30.cc b/tests/trilinos/30.cc
index 1fe6ad9030..c22d257f8f 100644
--- a/tests/trilinos/30.cc
+++ b/tests/trilinos/30.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/31.cc b/tests/trilinos/31.cc
index 05f149487c..6f348f0252 100644
--- a/tests/trilinos/31.cc
+++ b/tests/trilinos/31.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/32.cc b/tests/trilinos/32.cc
index dce3d9d827..4b04c22acf 100644
--- a/tests/trilinos/32.cc
+++ b/tests/trilinos/32.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/33.cc b/tests/trilinos/33.cc
index ea3706b69a..6ef2ff3738 100644
--- a/tests/trilinos/33.cc
+++ b/tests/trilinos/33.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/34.cc b/tests/trilinos/34.cc
index 5544c93373..1b11c09292 100644
--- a/tests/trilinos/34.cc
+++ b/tests/trilinos/34.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/35.cc b/tests/trilinos/35.cc
index a8dae00a57..838d323043 100644
--- a/tests/trilinos/35.cc
+++ b/tests/trilinos/35.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/36.cc b/tests/trilinos/36.cc
index 10f8669c17..23cd11ffbe 100644
--- a/tests/trilinos/36.cc
+++ b/tests/trilinos/36.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/37.cc b/tests/trilinos/37.cc
index 8881180a02..82a87b0b5c 100644
--- a/tests/trilinos/37.cc
+++ b/tests/trilinos/37.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/38.cc b/tests/trilinos/38.cc
index bd054a5d1f..2f2e915467 100644
--- a/tests/trilinos/38.cc
+++ b/tests/trilinos/38.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/39.cc b/tests/trilinos/39.cc
index 9398c0947a..31f08c334e 100644
--- a/tests/trilinos/39.cc
+++ b/tests/trilinos/39.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/40.cc b/tests/trilinos/40.cc
index 2d85c13391..de5130f2ef 100644
--- a/tests/trilinos/40.cc
+++ b/tests/trilinos/40.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/41.cc b/tests/trilinos/41.cc
index 6098172207..5910afa20c 100644
--- a/tests/trilinos/41.cc
+++ b/tests/trilinos/41.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/42.cc b/tests/trilinos/42.cc
index 3696cd87e7..02e7edc2eb 100644
--- a/tests/trilinos/42.cc
+++ b/tests/trilinos/42.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/45.cc b/tests/trilinos/45.cc
index 602dbc3adf..f809abebd6 100644
--- a/tests/trilinos/45.cc
+++ b/tests/trilinos/45.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/46.cc b/tests/trilinos/46.cc
index 3dc72f488b..78c451d899 100644
--- a/tests/trilinos/46.cc
+++ b/tests/trilinos/46.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/49.cc b/tests/trilinos/49.cc
index 000433a4dd..984818bbf9 100644
--- a/tests/trilinos/49.cc
+++ b/tests/trilinos/49.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/49a.cc b/tests/trilinos/49a.cc
index 5d98cbe67d..10d0ed95d5 100644
--- a/tests/trilinos/49a.cc
+++ b/tests/trilinos/49a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/49b.cc b/tests/trilinos/49b.cc
index 60858388c3..fcffa888ea 100644
--- a/tests/trilinos/49b.cc
+++ b/tests/trilinos/49b.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/50.cc b/tests/trilinos/50.cc
index bb14e29a3d..bcd20a82a4 100644
--- a/tests/trilinos/50.cc
+++ b/tests/trilinos/50.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/51.cc b/tests/trilinos/51.cc
index e3b38e0a15..acfb283634 100644
--- a/tests/trilinos/51.cc
+++ b/tests/trilinos/51.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/52.cc b/tests/trilinos/52.cc
index 78c0583281..d98018df3f 100644
--- a/tests/trilinos/52.cc
+++ b/tests/trilinos/52.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/53.cc b/tests/trilinos/53.cc
index 7d9f03ab1c..52763f4cdf 100644
--- a/tests/trilinos/53.cc
+++ b/tests/trilinos/53.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/54.cc b/tests/trilinos/54.cc
index 36cccedc4e..acafa25c51 100644
--- a/tests/trilinos/54.cc
+++ b/tests/trilinos/54.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/55.cc b/tests/trilinos/55.cc
index 774b243156..ae5b56895f 100644
--- a/tests/trilinos/55.cc
+++ b/tests/trilinos/55.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/56.cc b/tests/trilinos/56.cc
index 378f8d138a..0e5bba1639 100644
--- a/tests/trilinos/56.cc
+++ b/tests/trilinos/56.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/57.cc b/tests/trilinos/57.cc
index 28f26aa2c2..d31c5f3d16 100644
--- a/tests/trilinos/57.cc
+++ b/tests/trilinos/57.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/58.cc b/tests/trilinos/58.cc
index 749a6ee66a..558ddf67cf 100644
--- a/tests/trilinos/58.cc
+++ b/tests/trilinos/58.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/60.cc b/tests/trilinos/60.cc
index 649d5a2a8a..99f552ddc6 100644
--- a/tests/trilinos/60.cc
+++ b/tests/trilinos/60.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/61.cc b/tests/trilinos/61.cc
index a1f1742252..7904ef74e3 100644
--- a/tests/trilinos/61.cc
+++ b/tests/trilinos/61.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/62.cc b/tests/trilinos/62.cc
index 16202ffc11..8141d928bc 100644
--- a/tests/trilinos/62.cc
+++ b/tests/trilinos/62.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/63.cc b/tests/trilinos/63.cc
index e262f2f548..e715ce344b 100644
--- a/tests/trilinos/63.cc
+++ b/tests/trilinos/63.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/64.cc b/tests/trilinos/64.cc
index 7f5038efb7..d1b84ea853 100644
--- a/tests/trilinos/64.cc
+++ b/tests/trilinos/64.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/66.cc b/tests/trilinos/66.cc
index 50850489b1..9ed38be1d5 100644
--- a/tests/trilinos/66.cc
+++ b/tests/trilinos/66.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/67.cc b/tests/trilinos/67.cc
index f8213e4c2f..b9780d92fd 100644
--- a/tests/trilinos/67.cc
+++ b/tests/trilinos/67.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/68.cc b/tests/trilinos/68.cc
index e6ecbb35b4..7ae76afc23 100644
--- a/tests/trilinos/68.cc
+++ b/tests/trilinos/68.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/69.cc b/tests/trilinos/69.cc
index d50a24ded5..7d43dde068 100644
--- a/tests/trilinos/69.cc
+++ b/tests/trilinos/69.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/70.cc b/tests/trilinos/70.cc
index b20ff19b2b..e32998da50 100644
--- a/tests/trilinos/70.cc
+++ b/tests/trilinos/70.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/add_matrices_01.cc b/tests/trilinos/add_matrices_01.cc
index 6409f08813..8f06cb9e42 100644
--- a/tests/trilinos/add_matrices_01.cc
+++ b/tests/trilinos/add_matrices_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/add_matrices_02.cc b/tests/trilinos/add_matrices_02.cc
index 34cedc622d..f4fddf22f1 100644
--- a/tests/trilinos/add_matrices_02.cc
+++ b/tests/trilinos/add_matrices_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/add_matrices_03.cc b/tests/trilinos/add_matrices_03.cc
index 353ed38a68..b2ec7cf81a 100644
--- a/tests/trilinos/add_matrices_03.cc
+++ b/tests/trilinos/add_matrices_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/add_matrices_04.cc b/tests/trilinos/add_matrices_04.cc
index fbf5da88e3..c435477483 100644
--- a/tests/trilinos/add_matrices_04.cc
+++ b/tests/trilinos/add_matrices_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/add_matrices_05.cc b/tests/trilinos/add_matrices_05.cc
index 01a4bcb76b..5d62fdcd03 100644
--- a/tests/trilinos/add_matrices_05.cc
+++ b/tests/trilinos/add_matrices_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/add_matrices_06.cc b/tests/trilinos/add_matrices_06.cc
index 02eeef7dfb..6075844804 100644
--- a/tests/trilinos/add_matrices_06.cc
+++ b/tests/trilinos/add_matrices_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/amg_nondeterministic_01.cc b/tests/trilinos/amg_nondeterministic_01.cc
index 4caf90d7d1..6e24c1f48f 100644
--- a/tests/trilinos/amg_nondeterministic_01.cc
+++ b/tests/trilinos/amg_nondeterministic_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/block_sparse_matrix_add_01.cc b/tests/trilinos/block_sparse_matrix_add_01.cc
index f170e57102..0bbbf94216 100644
--- a/tests/trilinos/block_sparse_matrix_add_01.cc
+++ b/tests/trilinos/block_sparse_matrix_add_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/block_sparse_matrix_set_01.cc b/tests/trilinos/block_sparse_matrix_set_01.cc
index 6f98ef72cf..bfcfa36985 100644
--- a/tests/trilinos/block_sparse_matrix_set_01.cc
+++ b/tests/trilinos/block_sparse_matrix_set_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/block_sparse_matrix_vector_01.cc b/tests/trilinos/block_sparse_matrix_vector_01.cc
index d473e6f5a9..324898a208 100644
--- a/tests/trilinos/block_sparse_matrix_vector_01.cc
+++ b/tests/trilinos/block_sparse_matrix_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/block_sparse_matrix_vector_02.cc b/tests/trilinos/block_sparse_matrix_vector_02.cc
index 1ade68bc0d..0344e056ae 100644
--- a/tests/trilinos/block_sparse_matrix_vector_02.cc
+++ b/tests/trilinos/block_sparse_matrix_vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/block_sparse_matrix_vector_03.cc b/tests/trilinos/block_sparse_matrix_vector_03.cc
index 62b9cc222b..81b6703b61 100644
--- a/tests/trilinos/block_sparse_matrix_vector_03.cc
+++ b/tests/trilinos/block_sparse_matrix_vector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/block_sparse_matrix_vector_04.cc b/tests/trilinos/block_sparse_matrix_vector_04.cc
index 2c9f73f0f2..4b2283a036 100644
--- a/tests/trilinos/block_sparse_matrix_vector_04.cc
+++ b/tests/trilinos/block_sparse_matrix_vector_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/block_vector_iterator_01.cc b/tests/trilinos/block_vector_iterator_01.cc
index fbb0f3f567..3c09c52a85 100644
--- a/tests/trilinos/block_vector_iterator_01.cc
+++ b/tests/trilinos/block_vector_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/block_vector_iterator_02.cc b/tests/trilinos/block_vector_iterator_02.cc
index d4196e85a4..2cd4c402b5 100644
--- a/tests/trilinos/block_vector_iterator_02.cc
+++ b/tests/trilinos/block_vector_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/block_vector_iterator_03.cc b/tests/trilinos/block_vector_iterator_03.cc
index 1f436d6a60..2ff6bea859 100644
--- a/tests/trilinos/block_vector_iterator_03.cc
+++ b/tests/trilinos/block_vector_iterator_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/direct_solver.cc b/tests/trilinos/direct_solver.cc
index 1799e752e9..e9bf927804 100644
--- a/tests/trilinos/direct_solver.cc
+++ b/tests/trilinos/direct_solver.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/direct_solver_2.cc b/tests/trilinos/direct_solver_2.cc
index f1b27e5e0b..2a47b974fe 100644
--- a/tests/trilinos/direct_solver_2.cc
+++ b/tests/trilinos/direct_solver_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2020 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/direct_solver_3.cc b/tests/trilinos/direct_solver_3.cc
index 827058290f..53cc2aff48 100644
--- a/tests/trilinos/direct_solver_3.cc
+++ b/tests/trilinos/direct_solver_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/elide_zeros.cc b/tests/trilinos/elide_zeros.cc
index 54ea3c7d08..12e6f46191 100644
--- a/tests/trilinos/elide_zeros.cc
+++ b/tests/trilinos/elide_zeros.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2020 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/index_set_02.cc b/tests/trilinos/index_set_02.cc
index 4d63fd5eac..f5fb67c79e 100644
--- a/tests/trilinos/index_set_02.cc
+++ b/tests/trilinos/index_set_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/n_nonzeros_01.cc b/tests/trilinos/n_nonzeros_01.cc
index b17bcdaefd..0c33cb2af3 100644
--- a/tests/trilinos/n_nonzeros_01.cc
+++ b/tests/trilinos/n_nonzeros_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/n_nonzeros_02.cc b/tests/trilinos/n_nonzeros_02.cc
index 8a8057534c..465c4a06b1 100644
--- a/tests/trilinos/n_nonzeros_02.cc
+++ b/tests/trilinos/n_nonzeros_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/n_nonzeros_02_parallel.cc b/tests/trilinos/n_nonzeros_02_parallel.cc
index 1f3837cf62..dbc58ff94f 100644
--- a/tests/trilinos/n_nonzeros_02_parallel.cc
+++ b/tests/trilinos/n_nonzeros_02_parallel.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2019 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/parallel_sparse_matrix_01.cc b/tests/trilinos/parallel_sparse_matrix_01.cc
index 13fba939d2..8cdcc921ea 100644
--- a/tests/trilinos/parallel_sparse_matrix_01.cc
+++ b/tests/trilinos/parallel_sparse_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/precondition.cc b/tests/trilinos/precondition.cc
index 65930e6957..2b2b1994e5 100644
--- a/tests/trilinos/precondition.cc
+++ b/tests/trilinos/precondition.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2022 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/precondition_amg_dgp_01.cc b/tests/trilinos/precondition_amg_dgp_01.cc
index 4ab9256e12..d4086a0a89 100644
--- a/tests/trilinos/precondition_amg_dgp_01.cc
+++ b/tests/trilinos/precondition_amg_dgp_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/precondition_amg_dgp_03.cc b/tests/trilinos/precondition_amg_dgp_03.cc
index 7369f93fc6..990c768d2e 100644
--- a/tests/trilinos/precondition_amg_dgp_03.cc
+++ b/tests/trilinos/precondition_amg_dgp_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2021 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/precondition_amg_smoother.cc b/tests/trilinos/precondition_amg_smoother.cc
index 33edef6cfb..828399b859 100644
--- a/tests/trilinos/precondition_amg_smoother.cc
+++ b/tests/trilinos/precondition_amg_smoother.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/precondition_muelu_dgp.cc b/tests/trilinos/precondition_muelu_dgp.cc
index 608b83ea21..0515a11b6d 100644
--- a/tests/trilinos/precondition_muelu_dgp.cc
+++ b/tests/trilinos/precondition_muelu_dgp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2021 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/precondition_muelu_q_iso_q1.cc b/tests/trilinos/precondition_muelu_q_iso_q1.cc
index a071d5d58a..e41695c2fb 100644
--- a/tests/trilinos/precondition_muelu_q_iso_q1.cc
+++ b/tests/trilinos/precondition_muelu_q_iso_q1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2018 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/precondition_muelu_smoother.cc b/tests/trilinos/precondition_muelu_smoother.cc
index c52841fe64..4c40a37cdf 100644
--- a/tests/trilinos/precondition_muelu_smoother.cc
+++ b/tests/trilinos/precondition_muelu_smoother.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2015 - 2018 by the deal.II authors
+// Copyright (C) 2015 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/precondition_q_iso_q1.cc b/tests/trilinos/precondition_q_iso_q1.cc
index 1aa72f3c6d..f8ca829a6e 100644
--- a/tests/trilinos/precondition_q_iso_q1.cc
+++ b/tests/trilinos/precondition_q_iso_q1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/renumbering_01.cc b/tests/trilinos/renumbering_01.cc
index 46c6634cd7..5df8daf280 100644
--- a/tests/trilinos/renumbering_01.cc
+++ b/tests/trilinos/renumbering_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2021 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/slowness_01.cc b/tests/trilinos/slowness_01.cc
index fd5ac46ac8..30b86ef1c2 100644
--- a/tests/trilinos/slowness_01.cc
+++ b/tests/trilinos/slowness_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/slowness_02.cc b/tests/trilinos/slowness_02.cc
index 5acce9bebc..ce5a20cd98 100644
--- a/tests/trilinos/slowness_02.cc
+++ b/tests/trilinos/slowness_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/slowness_03.cc b/tests/trilinos/slowness_03.cc
index 80a6ea5fa8..df26ae66fa 100644
--- a/tests/trilinos/slowness_03.cc
+++ b/tests/trilinos/slowness_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/slowness_04.cc b/tests/trilinos/slowness_04.cc
index a6d685653d..794d9ab08e 100644
--- a/tests/trilinos/slowness_04.cc
+++ b/tests/trilinos/slowness_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/solver_control_06.cc b/tests/trilinos/solver_control_06.cc
index b5b04e000c..33f28f521b 100644
--- a/tests/trilinos/solver_control_06.cc
+++ b/tests/trilinos/solver_control_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_add_01.cc b/tests/trilinos/sparse_matrix_add_01.cc
index 4510a0f64a..a04ba6f1b2 100644
--- a/tests/trilinos/sparse_matrix_add_01.cc
+++ b/tests/trilinos/sparse_matrix_add_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_add_02.cc b/tests/trilinos/sparse_matrix_add_02.cc
index 96dbf085ce..8313bec053 100644
--- a/tests/trilinos/sparse_matrix_add_02.cc
+++ b/tests/trilinos/sparse_matrix_add_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_iterator_01.cc b/tests/trilinos/sparse_matrix_iterator_01.cc
index 1c18c33338..0f733f34b3 100644
--- a/tests/trilinos/sparse_matrix_iterator_01.cc
+++ b/tests/trilinos/sparse_matrix_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_set_01.cc b/tests/trilinos/sparse_matrix_set_01.cc
index af55245516..834ce39ff9 100644
--- a/tests/trilinos/sparse_matrix_set_01.cc
+++ b/tests/trilinos/sparse_matrix_set_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_set_02.cc b/tests/trilinos/sparse_matrix_set_02.cc
index 7d0166c8cd..eaea02ef82 100644
--- a/tests/trilinos/sparse_matrix_set_02.cc
+++ b/tests/trilinos/sparse_matrix_set_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_01.cc b/tests/trilinos/sparse_matrix_vector_01.cc
index 756c20a239..9dcd92f8f1 100644
--- a/tests/trilinos/sparse_matrix_vector_01.cc
+++ b/tests/trilinos/sparse_matrix_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_02.cc b/tests/trilinos/sparse_matrix_vector_02.cc
index e80c0afb29..c0de426770 100644
--- a/tests/trilinos/sparse_matrix_vector_02.cc
+++ b/tests/trilinos/sparse_matrix_vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_03.cc b/tests/trilinos/sparse_matrix_vector_03.cc
index 112759569c..b82425dd28 100644
--- a/tests/trilinos/sparse_matrix_vector_03.cc
+++ b/tests/trilinos/sparse_matrix_vector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_04.cc b/tests/trilinos/sparse_matrix_vector_04.cc
index 6587ca9474..07cb6a1c2f 100644
--- a/tests/trilinos/sparse_matrix_vector_04.cc
+++ b/tests/trilinos/sparse_matrix_vector_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_05.cc b/tests/trilinos/sparse_matrix_vector_05.cc
index 55d66b7ba2..9b9d97a12c 100644
--- a/tests/trilinos/sparse_matrix_vector_05.cc
+++ b/tests/trilinos/sparse_matrix_vector_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_06.cc b/tests/trilinos/sparse_matrix_vector_06.cc
index 41031f05c1..f826a884e1 100644
--- a/tests/trilinos/sparse_matrix_vector_06.cc
+++ b/tests/trilinos/sparse_matrix_vector_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_07.cc b/tests/trilinos/sparse_matrix_vector_07.cc
index 5dd8950380..9f108fd518 100644
--- a/tests/trilinos/sparse_matrix_vector_07.cc
+++ b/tests/trilinos/sparse_matrix_vector_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_08.cc b/tests/trilinos/sparse_matrix_vector_08.cc
index 51ea46249e..8f9a203d48 100644
--- a/tests/trilinos/sparse_matrix_vector_08.cc
+++ b/tests/trilinos/sparse_matrix_vector_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_09.cc b/tests/trilinos/sparse_matrix_vector_09.cc
index bcf4d4063c..f2f5338ce0 100644
--- a/tests/trilinos/sparse_matrix_vector_09.cc
+++ b/tests/trilinos/sparse_matrix_vector_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_10.cc b/tests/trilinos/sparse_matrix_vector_10.cc
index 92190df473..dd49a06975 100644
--- a/tests/trilinos/sparse_matrix_vector_10.cc
+++ b/tests/trilinos/sparse_matrix_vector_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/sparse_matrix_vector_11.cc b/tests/trilinos/sparse_matrix_vector_11.cc
index a498ce17f9..817fb44955 100644
--- a/tests/trilinos/sparse_matrix_vector_11.cc
+++ b/tests/trilinos/sparse_matrix_vector_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2018 by the deal.II authors
+// Copyright (C) 2013 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/step-77-with-nox.cc b/tests/trilinos/step-77-with-nox.cc
index 877dbd92a1..16535db691 100644
--- a/tests/trilinos/step-77-with-nox.cc
+++ b/tests/trilinos/step-77-with-nox.cc
@@ -1,6 +1,6 @@
 /* ---------------------------------------------------------------------
  *
- * Copyright (C) 2021 - 2023 by the deal.II authors
+ * Copyright (C) 2021 - 2024 by the deal.II authors
  *
  * This file is part of the deal.II library.
  *
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_01.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_01.cc
index 70b8e5dea9..ed455988d3 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_01.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_02.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_02.cc
index 80695c71dc..be288ccaf6 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_02.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_03.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_03.cc
index f132761ea7..f78bf77fd2 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_03.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_04.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_04.cc
index 65cda3ac27..5364facd1e 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_04.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_05.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_05.cc
index e242ff2d23..a81f781dde 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_05.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_06.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_06.cc
index b326ce5451..5cc26bbbca 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_06.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_07.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_07.cc
index 499a418e2d..ae77e5818b 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_07.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_08.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_08.cc
index fa1e9b9d06..4eadcce097 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_08.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_08.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_09.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_09.cc
index bce3bde992..e6786d2f92 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_09.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_10.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_10.cc
index 8065cba479..1abdf53766 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_10.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_11.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_11.cc
index 7f377640d7..0ae0b5ed23 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_11.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparse_matrix_iterator_12.cc b/tests/trilinos/trilinos_sparse_matrix_iterator_12.cc
index e202fc3a27..07209da952 100644
--- a/tests/trilinos/trilinos_sparse_matrix_iterator_12.cc
+++ b/tests/trilinos/trilinos_sparse_matrix_iterator_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2021 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparsity_pattern_01.cc b/tests/trilinos/trilinos_sparsity_pattern_01.cc
index 66bf8aaca3..421a24aced 100644
--- a/tests/trilinos/trilinos_sparsity_pattern_01.cc
+++ b/tests/trilinos/trilinos_sparsity_pattern_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2014 - 2018 by the deal.II authors
+// Copyright (C) 2014 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparsity_pattern_02.cc b/tests/trilinos/trilinos_sparsity_pattern_02.cc
index 1ac0481692..aa00178018 100644
--- a/tests/trilinos/trilinos_sparsity_pattern_02.cc
+++ b/tests/trilinos/trilinos_sparsity_pattern_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2009 - 2020 by the deal.II authors
+// Copyright (C) 2009 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparsity_pattern_05.cc b/tests/trilinos/trilinos_sparsity_pattern_05.cc
index 43cd8f3f28..3a0fe123d9 100644
--- a/tests/trilinos/trilinos_sparsity_pattern_05.cc
+++ b/tests/trilinos/trilinos_sparsity_pattern_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2018 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparsity_pattern_iterators_01.cc b/tests/trilinos/trilinos_sparsity_pattern_iterators_01.cc
index 1917cfc785..c377a946d1 100644
--- a/tests/trilinos/trilinos_sparsity_pattern_iterators_01.cc
+++ b/tests/trilinos/trilinos_sparsity_pattern_iterators_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2018 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/trilinos_sparsity_pattern_iterators_02.cc b/tests/trilinos/trilinos_sparsity_pattern_iterators_02.cc
index 6dc62fbfc6..6ed350c6f0 100644
--- a/tests/trilinos/trilinos_sparsity_pattern_iterators_02.cc
+++ b/tests/trilinos/trilinos_sparsity_pattern_iterators_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2018 by the deal.II authors
+// Copyright (C) 2016 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/vector_assign_01.cc b/tests/trilinos/vector_assign_01.cc
index 3f516503b8..6c915886ae 100644
--- a/tests/trilinos/vector_assign_01.cc
+++ b/tests/trilinos/vector_assign_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/vector_assign_02.cc b/tests/trilinos/vector_assign_02.cc
index 7f1bde5e7d..afa81dd879 100644
--- a/tests/trilinos/vector_assign_02.cc
+++ b/tests/trilinos/vector_assign_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/vector_equality_1.cc b/tests/trilinos/vector_equality_1.cc
index 6f5ac40011..5a6312b08d 100644
--- a/tests/trilinos/vector_equality_1.cc
+++ b/tests/trilinos/vector_equality_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/vector_equality_2.cc b/tests/trilinos/vector_equality_2.cc
index bd46a6a774..27df9cb2a7 100644
--- a/tests/trilinos/vector_equality_2.cc
+++ b/tests/trilinos/vector_equality_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/vector_equality_3.cc b/tests/trilinos/vector_equality_3.cc
index 0bf1342ea4..fa79d6f79b 100644
--- a/tests/trilinos/vector_equality_3.cc
+++ b/tests/trilinos/vector_equality_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/vector_equality_4.cc b/tests/trilinos/vector_equality_4.cc
index 5433ec077c..44fe4f4c2c 100644
--- a/tests/trilinos/vector_equality_4.cc
+++ b/tests/trilinos/vector_equality_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/vector_swap_01.cc b/tests/trilinos/vector_swap_01.cc
index c76f79b94a..da8a48bbf9 100644
--- a/tests/trilinos/vector_swap_01.cc
+++ b/tests/trilinos/vector_swap_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos/vector_swap_02.cc b/tests/trilinos/vector_swap_02.cc
index bdd606b7f6..2bc685db1d 100644
--- a/tests/trilinos/vector_swap_02.cc
+++ b/tests/trilinos/vector_swap_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/01.cc b/tests/trilinos_tpetra/01.cc
index e39faabba7..1cf09b4ece 100644
--- a/tests/trilinos_tpetra/01.cc
+++ b/tests/trilinos_tpetra/01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/02.cc b/tests/trilinos_tpetra/02.cc
index e620df8f69..1bef1e19eb 100644
--- a/tests/trilinos_tpetra/02.cc
+++ b/tests/trilinos_tpetra/02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/03a.cc b/tests/trilinos_tpetra/03a.cc
index 3c63425542..8d1de43dbf 100644
--- a/tests/trilinos_tpetra/03a.cc
+++ b/tests/trilinos_tpetra/03a.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/04.cc b/tests/trilinos_tpetra/04.cc
index 86a1942383..1009ae44a9 100644
--- a/tests/trilinos_tpetra/04.cc
+++ b/tests/trilinos_tpetra/04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/05.cc b/tests/trilinos_tpetra/05.cc
index 7561408b65..7dd1891f83 100644
--- a/tests/trilinos_tpetra/05.cc
+++ b/tests/trilinos_tpetra/05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/09.cc b/tests/trilinos_tpetra/09.cc
index 4016f89e05..f0441a532e 100644
--- a/tests/trilinos_tpetra/09.cc
+++ b/tests/trilinos_tpetra/09.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/10.cc b/tests/trilinos_tpetra/10.cc
index 7993dfb7f3..218f91537b 100644
--- a/tests/trilinos_tpetra/10.cc
+++ b/tests/trilinos_tpetra/10.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/11.cc b/tests/trilinos_tpetra/11.cc
index b7812837d4..a31c4a8d39 100644
--- a/tests/trilinos_tpetra/11.cc
+++ b/tests/trilinos_tpetra/11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/12.cc b/tests/trilinos_tpetra/12.cc
index 5f03a77242..ee8e307579 100644
--- a/tests/trilinos_tpetra/12.cc
+++ b/tests/trilinos_tpetra/12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/13.cc b/tests/trilinos_tpetra/13.cc
index 15bfbcc572..7d8a75fdbc 100644
--- a/tests/trilinos_tpetra/13.cc
+++ b/tests/trilinos_tpetra/13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/14.cc b/tests/trilinos_tpetra/14.cc
index 7707caf3fd..3f10747bc3 100644
--- a/tests/trilinos_tpetra/14.cc
+++ b/tests/trilinos_tpetra/14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/15.cc b/tests/trilinos_tpetra/15.cc
index 2f7275eece..1f364a7621 100644
--- a/tests/trilinos_tpetra/15.cc
+++ b/tests/trilinos_tpetra/15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/16.cc b/tests/trilinos_tpetra/16.cc
index 8a66154686..7030dc5bc1 100644
--- a/tests/trilinos_tpetra/16.cc
+++ b/tests/trilinos_tpetra/16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/17.cc b/tests/trilinos_tpetra/17.cc
index c7df4fe252..5973a368f6 100644
--- a/tests/trilinos_tpetra/17.cc
+++ b/tests/trilinos_tpetra/17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/18.cc b/tests/trilinos_tpetra/18.cc
index d3a58a9b00..625fffa9f4 100644
--- a/tests/trilinos_tpetra/18.cc
+++ b/tests/trilinos_tpetra/18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/19.cc b/tests/trilinos_tpetra/19.cc
index cd971997c7..1e03793db3 100644
--- a/tests/trilinos_tpetra/19.cc
+++ b/tests/trilinos_tpetra/19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/20.cc b/tests/trilinos_tpetra/20.cc
index 27968f9fe1..8a792008a6 100644
--- a/tests/trilinos_tpetra/20.cc
+++ b/tests/trilinos_tpetra/20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/21.cc b/tests/trilinos_tpetra/21.cc
index 4defc6c13b..88fa017236 100644
--- a/tests/trilinos_tpetra/21.cc
+++ b/tests/trilinos_tpetra/21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/22.cc b/tests/trilinos_tpetra/22.cc
index 6ae4d9b51c..4a88621c13 100644
--- a/tests/trilinos_tpetra/22.cc
+++ b/tests/trilinos_tpetra/22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/23.cc b/tests/trilinos_tpetra/23.cc
index 6cdefb2688..507bdeed76 100644
--- a/tests/trilinos_tpetra/23.cc
+++ b/tests/trilinos_tpetra/23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/24.cc b/tests/trilinos_tpetra/24.cc
index 3c655c8015..b4aeba2e4b 100644
--- a/tests/trilinos_tpetra/24.cc
+++ b/tests/trilinos_tpetra/24.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/27.cc b/tests/trilinos_tpetra/27.cc
index b5462b97ac..f39311648d 100644
--- a/tests/trilinos_tpetra/27.cc
+++ b/tests/trilinos_tpetra/27.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/28.cc b/tests/trilinos_tpetra/28.cc
index 13a19488eb..43cb065cfb 100644
--- a/tests/trilinos_tpetra/28.cc
+++ b/tests/trilinos_tpetra/28.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/29.cc b/tests/trilinos_tpetra/29.cc
index 6d7730afb7..88b401fb2d 100644
--- a/tests/trilinos_tpetra/29.cc
+++ b/tests/trilinos_tpetra/29.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/30.cc b/tests/trilinos_tpetra/30.cc
index 9dce37dd37..a2a848f74f 100644
--- a/tests/trilinos_tpetra/30.cc
+++ b/tests/trilinos_tpetra/30.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/31.cc b/tests/trilinos_tpetra/31.cc
index 037fd32fda..fe5b78fbf2 100644
--- a/tests/trilinos_tpetra/31.cc
+++ b/tests/trilinos_tpetra/31.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/32.cc b/tests/trilinos_tpetra/32.cc
index 7c1164764c..624f2bd19d 100644
--- a/tests/trilinos_tpetra/32.cc
+++ b/tests/trilinos_tpetra/32.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/34.cc b/tests/trilinos_tpetra/34.cc
index c9e92621b2..c5b311c0d5 100644
--- a/tests/trilinos_tpetra/34.cc
+++ b/tests/trilinos_tpetra/34.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/35.cc b/tests/trilinos_tpetra/35.cc
index 6c3392e769..97209f188b 100644
--- a/tests/trilinos_tpetra/35.cc
+++ b/tests/trilinos_tpetra/35.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/36.cc b/tests/trilinos_tpetra/36.cc
index d1d79429b1..191ed96548 100644
--- a/tests/trilinos_tpetra/36.cc
+++ b/tests/trilinos_tpetra/36.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/37.cc b/tests/trilinos_tpetra/37.cc
index bf4b758f35..3019f8a01a 100644
--- a/tests/trilinos_tpetra/37.cc
+++ b/tests/trilinos_tpetra/37.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/39.cc b/tests/trilinos_tpetra/39.cc
index b898cc4b33..ce6cc68153 100644
--- a/tests/trilinos_tpetra/39.cc
+++ b/tests/trilinos_tpetra/39.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/40.cc b/tests/trilinos_tpetra/40.cc
index c5ffb5c218..3ca487a1b7 100644
--- a/tests/trilinos_tpetra/40.cc
+++ b/tests/trilinos_tpetra/40.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/42.cc b/tests/trilinos_tpetra/42.cc
index 217b450f1d..326522c1f5 100644
--- a/tests/trilinos_tpetra/42.cc
+++ b/tests/trilinos_tpetra/42.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/45.cc b/tests/trilinos_tpetra/45.cc
index d75942f464..1f8699a48e 100644
--- a/tests/trilinos_tpetra/45.cc
+++ b/tests/trilinos_tpetra/45.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/46.cc b/tests/trilinos_tpetra/46.cc
index 842b08b71f..fdd97751ee 100644
--- a/tests/trilinos_tpetra/46.cc
+++ b/tests/trilinos_tpetra/46.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/51.cc b/tests/trilinos_tpetra/51.cc
index 0f7dbfcca4..4d42c21f4f 100644
--- a/tests/trilinos_tpetra/51.cc
+++ b/tests/trilinos_tpetra/51.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/52.cc b/tests/trilinos_tpetra/52.cc
index ae5ca24728..89b88911c8 100644
--- a/tests/trilinos_tpetra/52.cc
+++ b/tests/trilinos_tpetra/52.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/53.cc b/tests/trilinos_tpetra/53.cc
index 455e6e0e17..2b69b20f62 100644
--- a/tests/trilinos_tpetra/53.cc
+++ b/tests/trilinos_tpetra/53.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/54.cc b/tests/trilinos_tpetra/54.cc
index cdd117b46e..98561d8769 100644
--- a/tests/trilinos_tpetra/54.cc
+++ b/tests/trilinos_tpetra/54.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/55.cc b/tests/trilinos_tpetra/55.cc
index 69aeb7b5f9..60028930f0 100644
--- a/tests/trilinos_tpetra/55.cc
+++ b/tests/trilinos_tpetra/55.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/56.cc b/tests/trilinos_tpetra/56.cc
index ef4bc94db7..53566df52d 100644
--- a/tests/trilinos_tpetra/56.cc
+++ b/tests/trilinos_tpetra/56.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/57.cc b/tests/trilinos_tpetra/57.cc
index 5123bf5780..e8e98cd49d 100644
--- a/tests/trilinos_tpetra/57.cc
+++ b/tests/trilinos_tpetra/57.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/62.cc b/tests/trilinos_tpetra/62.cc
index 68d316cdd8..3dbe56b923 100644
--- a/tests/trilinos_tpetra/62.cc
+++ b/tests/trilinos_tpetra/62.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/63.cc b/tests/trilinos_tpetra/63.cc
index 52f0eca2dc..edbc6775d1 100644
--- a/tests/trilinos_tpetra/63.cc
+++ b/tests/trilinos_tpetra/63.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/64.cc b/tests/trilinos_tpetra/64.cc
index 37ef14bfb5..324c67cf72 100644
--- a/tests/trilinos_tpetra/64.cc
+++ b/tests/trilinos_tpetra/64.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/66.cc b/tests/trilinos_tpetra/66.cc
index 4f6d653c09..bc32afc9ff 100644
--- a/tests/trilinos_tpetra/66.cc
+++ b/tests/trilinos_tpetra/66.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/67.cc b/tests/trilinos_tpetra/67.cc
index 16fa53189e..7f1b66d961 100644
--- a/tests/trilinos_tpetra/67.cc
+++ b/tests/trilinos_tpetra/67.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/68.cc b/tests/trilinos_tpetra/68.cc
index 7d09773906..87e875d58f 100644
--- a/tests/trilinos_tpetra/68.cc
+++ b/tests/trilinos_tpetra/68.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/69.cc b/tests/trilinos_tpetra/69.cc
index 0d74e9d3bb..c6e7e336ca 100644
--- a/tests/trilinos_tpetra/69.cc
+++ b/tests/trilinos_tpetra/69.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/70.cc b/tests/trilinos_tpetra/70.cc
index 6c11559eeb..94a841854f 100644
--- a/tests/trilinos_tpetra/70.cc
+++ b/tests/trilinos_tpetra/70.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/index_set_01.cc b/tests/trilinos_tpetra/index_set_01.cc
index 64fbed0898..f9484513a2 100644
--- a/tests/trilinos_tpetra/index_set_01.cc
+++ b/tests/trilinos_tpetra/index_set_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2016 - 2018 by the deal.II authors
+// Copyright (C) 2016 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/parallel_sparse_matrix_01.cc b/tests/trilinos_tpetra/parallel_sparse_matrix_01.cc
index de39f89844..3846fcd865 100644
--- a/tests/trilinos_tpetra/parallel_sparse_matrix_01.cc
+++ b/tests/trilinos_tpetra/parallel_sparse_matrix_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2022 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/slowness_01.cc b/tests/trilinos_tpetra/slowness_01.cc
index 5a1d4533e8..b850fe2f25 100644
--- a/tests/trilinos_tpetra/slowness_01.cc
+++ b/tests/trilinos_tpetra/slowness_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/slowness_02.cc b/tests/trilinos_tpetra/slowness_02.cc
index ea1329b6c6..e26af9fce6 100644
--- a/tests/trilinos_tpetra/slowness_02.cc
+++ b/tests/trilinos_tpetra/slowness_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/slowness_03.cc b/tests/trilinos_tpetra/slowness_03.cc
index b01298f240..dda9dcb556 100644
--- a/tests/trilinos_tpetra/slowness_03.cc
+++ b/tests/trilinos_tpetra/slowness_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/slowness_04.cc b/tests/trilinos_tpetra/slowness_04.cc
index de84fbf63a..06d92af2cc 100644
--- a/tests/trilinos_tpetra/slowness_04.cc
+++ b/tests/trilinos_tpetra/slowness_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2005 - 2021 by the deal.II authors
+// Copyright (C) 2005 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparse_matrix_vector_01.cc b/tests/trilinos_tpetra/sparse_matrix_vector_01.cc
index f4c3dc4894..ad88bbb4d1 100644
--- a/tests/trilinos_tpetra/sparse_matrix_vector_01.cc
+++ b/tests/trilinos_tpetra/sparse_matrix_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparse_matrix_vector_02.cc b/tests/trilinos_tpetra/sparse_matrix_vector_02.cc
index 6cf9c602d9..bc373e70e1 100644
--- a/tests/trilinos_tpetra/sparse_matrix_vector_02.cc
+++ b/tests/trilinos_tpetra/sparse_matrix_vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparse_matrix_vector_03.cc b/tests/trilinos_tpetra/sparse_matrix_vector_03.cc
index fdcfd2594b..353f663e18 100644
--- a/tests/trilinos_tpetra/sparse_matrix_vector_03.cc
+++ b/tests/trilinos_tpetra/sparse_matrix_vector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparse_matrix_vector_04.cc b/tests/trilinos_tpetra/sparse_matrix_vector_04.cc
index 5caad37ec1..ecfe7e274d 100644
--- a/tests/trilinos_tpetra/sparse_matrix_vector_04.cc
+++ b/tests/trilinos_tpetra/sparse_matrix_vector_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparse_matrix_vector_05.cc b/tests/trilinos_tpetra/sparse_matrix_vector_05.cc
index af2185e2da..6b1d9e187d 100644
--- a/tests/trilinos_tpetra/sparse_matrix_vector_05.cc
+++ b/tests/trilinos_tpetra/sparse_matrix_vector_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparse_matrix_vector_06.cc b/tests/trilinos_tpetra/sparse_matrix_vector_06.cc
index d6dc7519ee..77429d82fe 100644
--- a/tests/trilinos_tpetra/sparse_matrix_vector_06.cc
+++ b/tests/trilinos_tpetra/sparse_matrix_vector_06.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparse_matrix_vector_07.cc b/tests/trilinos_tpetra/sparse_matrix_vector_07.cc
index 93cd24099f..2daa614627 100644
--- a/tests/trilinos_tpetra/sparse_matrix_vector_07.cc
+++ b/tests/trilinos_tpetra/sparse_matrix_vector_07.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparse_matrix_vector_14.cc b/tests/trilinos_tpetra/sparse_matrix_vector_14.cc
index 6521c965fd..6dc6889a4c 100644
--- a/tests/trilinos_tpetra/sparse_matrix_vector_14.cc
+++ b/tests/trilinos_tpetra/sparse_matrix_vector_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2023 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparse_matrix_vector_15.cc b/tests/trilinos_tpetra/sparse_matrix_vector_15.cc
index 50e9e73526..46dfbaad96 100644
--- a/tests/trilinos_tpetra/sparse_matrix_vector_15.cc
+++ b/tests/trilinos_tpetra/sparse_matrix_vector_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2013 - 2023 by the deal.II authors
+// Copyright (C) 2013 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparsity_pattern_01.cc b/tests/trilinos_tpetra/sparsity_pattern_01.cc
index 1ae5144849..4c4464c6f9 100644
--- a/tests/trilinos_tpetra/sparsity_pattern_01.cc
+++ b/tests/trilinos_tpetra/sparsity_pattern_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparsity_pattern_02.cc b/tests/trilinos_tpetra/sparsity_pattern_02.cc
index a866047e86..a76a3c53bf 100644
--- a/tests/trilinos_tpetra/sparsity_pattern_02.cc
+++ b/tests/trilinos_tpetra/sparsity_pattern_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparsity_pattern_03.cc b/tests/trilinos_tpetra/sparsity_pattern_03.cc
index 3093923215..78e7b214f7 100644
--- a/tests/trilinos_tpetra/sparsity_pattern_03.cc
+++ b/tests/trilinos_tpetra/sparsity_pattern_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/sparsity_pattern_common.h b/tests/trilinos_tpetra/sparsity_pattern_common.h
index bfc4cd8726..ead8cbc0d7 100644
--- a/tests/trilinos_tpetra/sparsity_pattern_common.h
+++ b/tests/trilinos_tpetra/sparsity_pattern_common.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2008 - 2020 by the deal.II authors
+// Copyright (C) 2008 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/tpetra_vector_01.cc b/tests/trilinos_tpetra/tpetra_vector_01.cc
index c1bda82066..1917ddf93d 100644
--- a/tests/trilinos_tpetra/tpetra_vector_01.cc
+++ b/tests/trilinos_tpetra/tpetra_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/tpetra_vector_02.cc b/tests/trilinos_tpetra/tpetra_vector_02.cc
index 99cd52ad15..5cbd79ffc1 100644
--- a/tests/trilinos_tpetra/tpetra_vector_02.cc
+++ b/tests/trilinos_tpetra/tpetra_vector_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/tpetra_vector_03.cc b/tests/trilinos_tpetra/tpetra_vector_03.cc
index 519a727d4e..0bb631ac29 100644
--- a/tests/trilinos_tpetra/tpetra_vector_03.cc
+++ b/tests/trilinos_tpetra/tpetra_vector_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2018 - 2023 by the deal.II authors
+// Copyright (C) 2018 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/vector_reference_01.cc b/tests/trilinos_tpetra/vector_reference_01.cc
index e7925a1b67..034c4fa073 100644
--- a/tests/trilinos_tpetra/vector_reference_01.cc
+++ b/tests/trilinos_tpetra/vector_reference_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/vector_reinit.cc b/tests/trilinos_tpetra/vector_reinit.cc
index a9b2d84945..705263b7f8 100644
--- a/tests/trilinos_tpetra/vector_reinit.cc
+++ b/tests/trilinos_tpetra/vector_reinit.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2020 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/trilinos_tpetra/vector_swap_01.cc b/tests/trilinos_tpetra/vector_swap_01.cc
index 012f350dc5..07bfabd4c1 100644
--- a/tests/trilinos_tpetra/vector_swap_01.cc
+++ b/tests/trilinos_tpetra/vector_swap_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/umfpack/umfpack_04.cc b/tests/umfpack/umfpack_04.cc
index 4779eba374..8484efb73e 100644
--- a/tests/umfpack/umfpack_04.cc
+++ b/tests/umfpack/umfpack_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2002 - 2020 by the deal.II authors
+// Copyright (C) 2002 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_11.cc b/tests/vector/complex_vector_11.cc
index 2cf7d537db..55a7ba46d5 100644
--- a/tests/vector/complex_vector_11.cc
+++ b/tests/vector/complex_vector_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_12.cc b/tests/vector/complex_vector_12.cc
index 21a07e7bae..7fb36ca1ee 100644
--- a/tests/vector/complex_vector_12.cc
+++ b/tests/vector/complex_vector_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_13.cc b/tests/vector/complex_vector_13.cc
index 781efb3d5c..c59ef50424 100644
--- a/tests/vector/complex_vector_13.cc
+++ b/tests/vector/complex_vector_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_14.cc b/tests/vector/complex_vector_14.cc
index 9bec0bd6bb..ed504bbbf9 100644
--- a/tests/vector/complex_vector_14.cc
+++ b/tests/vector/complex_vector_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_15.cc b/tests/vector/complex_vector_15.cc
index 20ac8ad2ee..229af5dd0e 100644
--- a/tests/vector/complex_vector_15.cc
+++ b/tests/vector/complex_vector_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_16.cc b/tests/vector/complex_vector_16.cc
index 06ed6ab4e4..a8de0c9d38 100644
--- a/tests/vector/complex_vector_16.cc
+++ b/tests/vector/complex_vector_16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_17.cc b/tests/vector/complex_vector_17.cc
index d01f47d9b3..e062a25081 100644
--- a/tests/vector/complex_vector_17.cc
+++ b/tests/vector/complex_vector_17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_18.cc b/tests/vector/complex_vector_18.cc
index 98045cbe6b..bdb462a410 100644
--- a/tests/vector/complex_vector_18.cc
+++ b/tests/vector/complex_vector_18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_19.cc b/tests/vector/complex_vector_19.cc
index 98063f2518..ba7ca9f8e2 100644
--- a/tests/vector/complex_vector_19.cc
+++ b/tests/vector/complex_vector_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_20.cc b/tests/vector/complex_vector_20.cc
index a3886cfef1..c9260d1a96 100644
--- a/tests/vector/complex_vector_20.cc
+++ b/tests/vector/complex_vector_20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_21.cc b/tests/vector/complex_vector_21.cc
index e3dc7bd7b4..0f05b73a8d 100644
--- a/tests/vector/complex_vector_21.cc
+++ b/tests/vector/complex_vector_21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_21_negative.cc b/tests/vector/complex_vector_21_negative.cc
index b401316fd4..e5d3a785dd 100644
--- a/tests/vector/complex_vector_21_negative.cc
+++ b/tests/vector/complex_vector_21_negative.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_22.cc b/tests/vector/complex_vector_22.cc
index df121f180f..bc5cf78161 100644
--- a/tests/vector/complex_vector_22.cc
+++ b/tests/vector/complex_vector_22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_23.cc b/tests/vector/complex_vector_23.cc
index 2271d0fd24..c458a02774 100644
--- a/tests/vector/complex_vector_23.cc
+++ b/tests/vector/complex_vector_23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_24.cc b/tests/vector/complex_vector_24.cc
index 1c56f393e9..b93bcd7d41 100644
--- a/tests/vector/complex_vector_24.cc
+++ b/tests/vector/complex_vector_24.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_25.cc b/tests/vector/complex_vector_25.cc
index 3fa46e8b82..723b67625f 100644
--- a/tests/vector/complex_vector_25.cc
+++ b/tests/vector/complex_vector_25.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_26.cc b/tests/vector/complex_vector_26.cc
index d47d86ee6c..47d781d883 100644
--- a/tests/vector/complex_vector_26.cc
+++ b/tests/vector/complex_vector_26.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_27.cc b/tests/vector/complex_vector_27.cc
index 21d132ea2a..905a2fc068 100644
--- a/tests/vector/complex_vector_27.cc
+++ b/tests/vector/complex_vector_27.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_28.cc b/tests/vector/complex_vector_28.cc
index 1cfcf77cb6..6b2dd82089 100644
--- a/tests/vector/complex_vector_28.cc
+++ b/tests/vector/complex_vector_28.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_29.cc b/tests/vector/complex_vector_29.cc
index 20f2546c2e..f651d2b9dd 100644
--- a/tests/vector/complex_vector_29.cc
+++ b/tests/vector/complex_vector_29.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_30.cc b/tests/vector/complex_vector_30.cc
index 109fb7dce7..9e7e3c52e4 100644
--- a/tests/vector/complex_vector_30.cc
+++ b/tests/vector/complex_vector_30.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_31.cc b/tests/vector/complex_vector_31.cc
index c5f4a01b84..c7027bb6ef 100644
--- a/tests/vector/complex_vector_31.cc
+++ b/tests/vector/complex_vector_31.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_32.cc b/tests/vector/complex_vector_32.cc
index 7b6d2b5391..ed11898016 100644
--- a/tests/vector/complex_vector_32.cc
+++ b/tests/vector/complex_vector_32.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_33.cc b/tests/vector/complex_vector_33.cc
index 0d52a0f8bf..0d3a41808b 100644
--- a/tests/vector/complex_vector_33.cc
+++ b/tests/vector/complex_vector_33.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_34.cc b/tests/vector/complex_vector_34.cc
index 671c8c71e3..013f66d71f 100644
--- a/tests/vector/complex_vector_34.cc
+++ b/tests/vector/complex_vector_34.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_35.cc b/tests/vector/complex_vector_35.cc
index 96a5d466a6..fffbb13bf6 100644
--- a/tests/vector/complex_vector_35.cc
+++ b/tests/vector/complex_vector_35.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_36.cc b/tests/vector/complex_vector_36.cc
index deff1530a1..c9fe8a8aab 100644
--- a/tests/vector/complex_vector_36.cc
+++ b/tests/vector/complex_vector_36.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_37.cc b/tests/vector/complex_vector_37.cc
index 83fddecfc2..47a342811b 100644
--- a/tests/vector/complex_vector_37.cc
+++ b/tests/vector/complex_vector_37.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_39.cc b/tests/vector/complex_vector_39.cc
index 71469ef93b..de00ab404b 100644
--- a/tests/vector/complex_vector_39.cc
+++ b/tests/vector/complex_vector_39.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_40.cc b/tests/vector/complex_vector_40.cc
index 4a7ce415f6..ecc1c36c21 100644
--- a/tests/vector/complex_vector_40.cc
+++ b/tests/vector/complex_vector_40.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_41.cc b/tests/vector/complex_vector_41.cc
index ec62b201e1..b66a6a27f9 100644
--- a/tests/vector/complex_vector_41.cc
+++ b/tests/vector/complex_vector_41.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_42.cc b/tests/vector/complex_vector_42.cc
index f91143d655..0b65466e02 100644
--- a/tests/vector/complex_vector_42.cc
+++ b/tests/vector/complex_vector_42.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_45.cc b/tests/vector/complex_vector_45.cc
index 4c59e56300..91363a0014 100644
--- a/tests/vector/complex_vector_45.cc
+++ b/tests/vector/complex_vector_45.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_46.cc b/tests/vector/complex_vector_46.cc
index d2af75dd21..ba5a39fb6e 100644
--- a/tests/vector/complex_vector_46.cc
+++ b/tests/vector/complex_vector_46.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_49.cc b/tests/vector/complex_vector_49.cc
index 1b23596430..dac0cd7a87 100644
--- a/tests/vector/complex_vector_49.cc
+++ b/tests/vector/complex_vector_49.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_equality_1.cc b/tests/vector/complex_vector_equality_1.cc
index 50bf714ec5..dadfb730b2 100644
--- a/tests/vector/complex_vector_equality_1.cc
+++ b/tests/vector/complex_vector_equality_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_equality_2.cc b/tests/vector/complex_vector_equality_2.cc
index e32d1fa9a2..71cdef4e2c 100644
--- a/tests/vector/complex_vector_equality_2.cc
+++ b/tests/vector/complex_vector_equality_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_equality_3.cc b/tests/vector/complex_vector_equality_3.cc
index ffbd4a7007..39faae9d14 100644
--- a/tests/vector/complex_vector_equality_3.cc
+++ b/tests/vector/complex_vector_equality_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_equality_4.cc b/tests/vector/complex_vector_equality_4.cc
index 3f9cdf54eb..50f9241f2a 100644
--- a/tests/vector/complex_vector_equality_4.cc
+++ b/tests/vector/complex_vector_equality_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_equality_5.cc b/tests/vector/complex_vector_equality_5.cc
index 31deeef815..20eeb442d9 100644
--- a/tests/vector/complex_vector_equality_5.cc
+++ b/tests/vector/complex_vector_equality_5.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_equality_6.cc b/tests/vector/complex_vector_equality_6.cc
index 5eb79b9447..c94b9c7a2b 100644
--- a/tests/vector/complex_vector_equality_6.cc
+++ b/tests/vector/complex_vector_equality_6.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_equality_7.cc b/tests/vector/complex_vector_equality_7.cc
index c3d6d377a3..ab56ba4259 100644
--- a/tests/vector/complex_vector_equality_7.cc
+++ b/tests/vector/complex_vector_equality_7.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_equality_8.cc b/tests/vector/complex_vector_equality_8.cc
index 66bb706a7a..fe58a92955 100644
--- a/tests/vector/complex_vector_equality_8.cc
+++ b/tests/vector/complex_vector_equality_8.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/complex_vector_vector_01.cc b/tests/vector/complex_vector_vector_01.cc
index 6e09bf6aa8..ebd0cb5c63 100644
--- a/tests/vector/complex_vector_vector_01.cc
+++ b/tests/vector/complex_vector_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_11.cc b/tests/vector/vector_11.cc
index 685d6f008d..152fba2f4b 100644
--- a/tests/vector/vector_11.cc
+++ b/tests/vector/vector_11.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_12.cc b/tests/vector/vector_12.cc
index 08c4f45eb5..0b4d8ebd7c 100644
--- a/tests/vector/vector_12.cc
+++ b/tests/vector/vector_12.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_13.cc b/tests/vector/vector_13.cc
index 27d5c35dfb..a79b23fea7 100644
--- a/tests/vector/vector_13.cc
+++ b/tests/vector/vector_13.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_14.cc b/tests/vector/vector_14.cc
index 57b48d5c95..51f85bcaf9 100644
--- a/tests/vector/vector_14.cc
+++ b/tests/vector/vector_14.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_15.cc b/tests/vector/vector_15.cc
index caf53e1883..b390de17ec 100644
--- a/tests/vector/vector_15.cc
+++ b/tests/vector/vector_15.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_16.cc b/tests/vector/vector_16.cc
index 27f6c5a7f2..84e4721818 100644
--- a/tests/vector/vector_16.cc
+++ b/tests/vector/vector_16.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_17.cc b/tests/vector/vector_17.cc
index a95c9274a5..87c881f9c5 100644
--- a/tests/vector/vector_17.cc
+++ b/tests/vector/vector_17.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_18.cc b/tests/vector/vector_18.cc
index 24f1247d21..6119ce0d0c 100644
--- a/tests/vector/vector_18.cc
+++ b/tests/vector/vector_18.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_19.cc b/tests/vector/vector_19.cc
index cfd7c2ed98..74c8f082a4 100644
--- a/tests/vector/vector_19.cc
+++ b/tests/vector/vector_19.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_20.cc b/tests/vector/vector_20.cc
index 9fdea9a783..d74e0aa220 100644
--- a/tests/vector/vector_20.cc
+++ b/tests/vector/vector_20.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_21.cc b/tests/vector/vector_21.cc
index 53fc24786e..e8efb4b92e 100644
--- a/tests/vector/vector_21.cc
+++ b/tests/vector/vector_21.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_21_negative.cc b/tests/vector/vector_21_negative.cc
index a2234569b7..9ee6280d86 100644
--- a/tests/vector/vector_21_negative.cc
+++ b/tests/vector/vector_21_negative.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_22.cc b/tests/vector/vector_22.cc
index c6019a96b8..cc301bc719 100644
--- a/tests/vector/vector_22.cc
+++ b/tests/vector/vector_22.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_23.cc b/tests/vector/vector_23.cc
index 9ae182ecfe..9fcac86f17 100644
--- a/tests/vector/vector_23.cc
+++ b/tests/vector/vector_23.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_24.cc b/tests/vector/vector_24.cc
index cd651878f7..401b2e8559 100644
--- a/tests/vector/vector_24.cc
+++ b/tests/vector/vector_24.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_26.cc b/tests/vector/vector_26.cc
index e7d8216690..2b17e89d15 100644
--- a/tests/vector/vector_26.cc
+++ b/tests/vector/vector_26.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_27.cc b/tests/vector/vector_27.cc
index 878e7960e2..766ce8ac72 100644
--- a/tests/vector/vector_27.cc
+++ b/tests/vector/vector_27.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_28.cc b/tests/vector/vector_28.cc
index 2cd0d34dda..67294ccf27 100644
--- a/tests/vector/vector_28.cc
+++ b/tests/vector/vector_28.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_29.cc b/tests/vector/vector_29.cc
index ee2b951ae4..5594aa61bf 100644
--- a/tests/vector/vector_29.cc
+++ b/tests/vector/vector_29.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_30.cc b/tests/vector/vector_30.cc
index dcf00c0735..8607af1779 100644
--- a/tests/vector/vector_30.cc
+++ b/tests/vector/vector_30.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_31.cc b/tests/vector/vector_31.cc
index ad7147511e..928e8e256a 100644
--- a/tests/vector/vector_31.cc
+++ b/tests/vector/vector_31.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_32.cc b/tests/vector/vector_32.cc
index 9f2a0c9d0e..633997ce21 100644
--- a/tests/vector/vector_32.cc
+++ b/tests/vector/vector_32.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_33.cc b/tests/vector/vector_33.cc
index 14049caf81..8a0405af8b 100644
--- a/tests/vector/vector_33.cc
+++ b/tests/vector/vector_33.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_34.cc b/tests/vector/vector_34.cc
index 0a74ab55b8..6b0dca7d51 100644
--- a/tests/vector/vector_34.cc
+++ b/tests/vector/vector_34.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_35.cc b/tests/vector/vector_35.cc
index 6ffd2acaff..da61ca6693 100644
--- a/tests/vector/vector_35.cc
+++ b/tests/vector/vector_35.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_36.cc b/tests/vector/vector_36.cc
index 9c75a90174..4083f5a5a9 100644
--- a/tests/vector/vector_36.cc
+++ b/tests/vector/vector_36.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_37.cc b/tests/vector/vector_37.cc
index be2be643e3..aa606d370a 100644
--- a/tests/vector/vector_37.cc
+++ b/tests/vector/vector_37.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_39.cc b/tests/vector/vector_39.cc
index 526ed15e8f..77de66e62c 100644
--- a/tests/vector/vector_39.cc
+++ b/tests/vector/vector_39.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_40.cc b/tests/vector/vector_40.cc
index 1e3f2a0e8c..f74786a83e 100644
--- a/tests/vector/vector_40.cc
+++ b/tests/vector/vector_40.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_41.cc b/tests/vector/vector_41.cc
index 4dbf8c7d45..27bb015335 100644
--- a/tests/vector/vector_41.cc
+++ b/tests/vector/vector_41.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_42.cc b/tests/vector/vector_42.cc
index 2d8b9fce9c..c38d0d093b 100644
--- a/tests/vector/vector_42.cc
+++ b/tests/vector/vector_42.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_45.cc b/tests/vector/vector_45.cc
index d0383c107a..0e525be94b 100644
--- a/tests/vector/vector_45.cc
+++ b/tests/vector/vector_45.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_46.cc b/tests/vector/vector_46.cc
index 4cfff227d3..1ec129a8b7 100644
--- a/tests/vector/vector_46.cc
+++ b/tests/vector/vector_46.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_49.cc b/tests/vector/vector_49.cc
index bf286da699..029b00196e 100644
--- a/tests/vector/vector_49.cc
+++ b/tests/vector/vector_49.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_57.cc b/tests/vector/vector_57.cc
index b8ee83cb10..602893d78f 100644
--- a/tests/vector/vector_57.cc
+++ b/tests/vector/vector_57.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_equality_1.cc b/tests/vector/vector_equality_1.cc
index 421adc9da6..52d6441ae2 100644
--- a/tests/vector/vector_equality_1.cc
+++ b/tests/vector/vector_equality_1.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_equality_2.cc b/tests/vector/vector_equality_2.cc
index 50130a2322..9f7d1f1cf6 100644
--- a/tests/vector/vector_equality_2.cc
+++ b/tests/vector/vector_equality_2.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_equality_3.cc b/tests/vector/vector_equality_3.cc
index 45e8a613d4..827384e81f 100644
--- a/tests/vector/vector_equality_3.cc
+++ b/tests/vector/vector_equality_3.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_equality_4.cc b/tests/vector/vector_equality_4.cc
index 3bc3fee75d..5da6de5f8b 100644
--- a/tests/vector/vector_equality_4.cc
+++ b/tests/vector/vector_equality_4.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_equality_5.cc b/tests/vector/vector_equality_5.cc
index 2028e03f2a..c7daf11224 100644
--- a/tests/vector/vector_equality_5.cc
+++ b/tests/vector/vector_equality_5.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_equality_6.cc b/tests/vector/vector_equality_6.cc
index 9551df8198..cf834e26c7 100644
--- a/tests/vector/vector_equality_6.cc
+++ b/tests/vector/vector_equality_6.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_equality_7.cc b/tests/vector/vector_equality_7.cc
index b8542082b2..120eba91bc 100644
--- a/tests/vector/vector_equality_7.cc
+++ b/tests/vector/vector_equality_7.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_equality_8.cc b/tests/vector/vector_equality_8.cc
index 5bb111d479..b6de575845 100644
--- a/tests/vector/vector_equality_8.cc
+++ b/tests/vector/vector_equality_8.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector/vector_vector_01.cc b/tests/vector/vector_vector_01.cc
index 035014bbd3..d306978884 100644
--- a/tests/vector/vector_vector_01.cc
+++ b/tests/vector/vector_vector_01.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2004 - 2018 by the deal.II authors
+// Copyright (C) 2004 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector_tools/boundaries.cc b/tests/vector_tools/boundaries.cc
index 401525b258..1b6c0f9648 100644
--- a/tests/vector_tools/boundaries.cc
+++ b/tests/vector_tools/boundaries.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector_tools/boundaries_complex.cc b/tests/vector_tools/boundaries_complex.cc
index ee10eba214..e630b56781 100644
--- a/tests/vector_tools/boundaries_complex.cc
+++ b/tests/vector_tools/boundaries_complex.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2018 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector_tools/boundaries_complex_hp.cc b/tests/vector_tools/boundaries_complex_hp.cc
index 5912e3ae72..40acd4916a 100644
--- a/tests/vector_tools/boundaries_complex_hp.cc
+++ b/tests/vector_tools/boundaries_complex_hp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2000 - 2020 by the deal.II authors
+// Copyright (C) 2000 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector_tools/integrate_difference_03.cc b/tests/vector_tools/integrate_difference_03.cc
index fc6ce7de6e..5f21fa788e 100644
--- a/tests/vector_tools/integrate_difference_03.cc
+++ b/tests/vector_tools/integrate_difference_03.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2022 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector_tools/integrate_difference_04.cc b/tests/vector_tools/integrate_difference_04.cc
index 797f90d2d0..85ec4c6746 100644
--- a/tests/vector_tools/integrate_difference_04.cc
+++ b/tests/vector_tools/integrate_difference_04.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector_tools/integrate_difference_04_hp.cc b/tests/vector_tools/integrate_difference_04_hp.cc
index 64433b42e1..68f75c3c74 100644
--- a/tests/vector_tools/integrate_difference_04_hp.cc
+++ b/tests/vector_tools/integrate_difference_04_hp.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector_tools/integrate_difference_04_hp_02.cc b/tests/vector_tools/integrate_difference_04_hp_02.cc
index 65e376a54a..89ea5bc9a7 100644
--- a/tests/vector_tools/integrate_difference_04_hp_02.cc
+++ b/tests/vector_tools/integrate_difference_04_hp_02.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector_tools/integrate_difference_05.cc b/tests/vector_tools/integrate_difference_05.cc
index e853b83306..4c9ecf5d59 100644
--- a/tests/vector_tools/integrate_difference_05.cc
+++ b/tests/vector_tools/integrate_difference_05.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2020 by the deal.II authors
+// Copyright (C) 2017 - 2024 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
diff --git a/tests/vector_tools/interpolate.cc b/tests/vector_tools/interpolate.cc
index aa717d92e6..4cd985d929 100644
--- a/tests/vector_tools/interpolate.cc
+++ b/tests/vector_tools/interpolate.cc
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2003 - 2020 by the deal.II authors
+// Copyright (C) 2003 - 2023 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
-- 
2.39.5