Update CHANGELOG.md for 12.10.5

[ci skip]

CHANGELOG.md

@@ -2,6 +2,13 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
 
+## 12.10.5 (2020-05-13)
+
+### Added (1 change)
+
+- Consider project group and group ancestors when processing CODEOWNERS entries. !31804
+
+
 ## 12.10.4 (2020-05-05)
 
 ### Fixed (1 change)

changelogs/unreleased/216345-extend-project-group-membership-checks-to-group-ancestors.yml

----
-title: Consider project group and group ancestors when processing CODEOWNERS entries
-merge_request: 31804
-author:
-type: added