Update CHANGELOG for 8.10.4

Signed-off-by: Rémy Coutable <remy@rymai.me>

CHANGELOG

@@ -69,11 +69,13 @@ v 8.11.0 (unreleased)
   - Catch what warden might throw when profiling requests to re-throw it
   - Speed up and reduce memory usage of Commit#repo_changes, Repository#expire_avatar_cache and IrkerWorker
 
-v 8.10.4 (unreleased)
-  - Fix Import/Export error checking versions
+v 8.10.5 (unreleased)
 
-v 8.10.4 (unreleased)
-  - Fix Import/Export project import not working in HA mode
+v 8.10.4
+  - Don't close referenced upstream issues from a forked project.
+  - Fixes issue with dropdowns `enter` key not working correctly. !5544
+  - Fix Import/Export project import not working in HA mode. !5618
+  - Fix Import/Export error checking versions. !5638
 
 v 8.10.3
   - Fix Import/Export issue importing milestones and labels not associated properly. !5426