Add a changelog entry.

diff --git a/doc/news/changes/minor/20211227Bangerth b/doc/news/changes/minor/20211227Bangerth
new file mode 100644 (file)
index 0000000..2e0dfa8
--- /dev/null
+++ b/doc/news/changes/minor/20211227Bangerth
@@ -0,0 +1,4 @@
+Fixed: GridGenerator::flatten_triangulation() did not copy information
+on the manifold ids of interior faces and edges. This is now fixed.
+<br>
+(Wolfgang Bangerth, 2021/12/27)