From: Matthias Maier Date: Mon, 19 Feb 2024 05:17:21 +0000 (-0600) Subject: Relicensing: update LICENSE.md X-Git-Tag: relicensing^2~3 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4b39ede3402c0400629a683bf6686a0096e29771;p=dealii.git Relicensing: update LICENSE.md --- diff --git a/LICENSE.md b/LICENSE.md index 47c966f546..6f85f2e481 100644 --- a/LICENSE.md +++ b/LICENSE.md @@ -3,36 +3,40 @@ deal.II Copyright and License This directory contains the deal.II library. -The deal.II library is copyrighted by the deal.II authors. This term -refers to the people listed in the file `AUTHORS` and in the -[authors list](https://www.dealii.org/authors.html) on the webpage. - -The deal.II library is free software; you can use it, redistribute it, -and/or modify it under the terms of the GNU Lesser General Public -License as published by the Free Software Foundation; either version -2.1 of the License, or (at your option) any later version. The full -text of the GNU Lesser General Public version 2.1 is quoted below. +The deal.II library is copyrighted by the deal.II authors. This term refers +to the people listed in the file `AUTHORS` and in the [authors +list](https://www.dealii.org/authors.html) on the webpage. +The deal.II library is free software; it is licensed under the GNU +Lesser General Public License v2.1 or later. The deal.II authors are in +the process of relicensing the library to be dual-licensed under the +Apache License 2.0 with LLVM Exception and the GNU Lesser +General Public License v2.1 or later. As such we require all new code +contributions to the library to be dual licensed as outlined below. Contributions ------------- As a contributor to this project, you agree that all of your contributions -be governed by the Developer Certificate of Origin version 1.1. +to deal.II (a) be governed by the +[Developer Certificate of Origin version 1.1](https://developercertificate.org/), +and (b) be dual-licensed under the terms of the +[Apache License 2.0](https://spdx.org/licenses/Apache-2.0.html) +with +[LLVM Exception](https://spdx.org/licenses/LLVM-exception.html) +and the +[GNU Lesser General Public License v2.1 or later](https://spdx.org/licenses/LGPL-2.1-or-later.html). The deal.II project does not require copyright assignments for contributions. This means that the copyright for code contributions in the -deal.II project is held by its respective contributors who have each agreed -to release their contributed code under a compatible open source license -(LGPL v2.1 for library code). The full text of the Developer Certificate of -Origin version 1.1 is quoted below. +deal.II project is held by its respective contributors. Referencing the library ----------------------- -In addition to the terms imposed by the LGPL v2.1 or later, we ask for the -following courtesy: +In addition to the terms imposed by the licenses, we ask for the following +courtesy: - Every publication presenting numerical results obtained with the help of deal.II should state the name of the library and cite appropriate @@ -73,9 +77,9 @@ but you also are not restricted by their license. Contact ------- -For further questions regarding licensing and commercial use please contact the -[deal.II principal developers, or project -administrators](https://www.dealii.org/authors.html) directly. +For further questions regarding licensing and commercial use please contact +(one of) the +[deal.II principal developers](https://www.dealii.org/authors.html) directly. 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