Update CHANGELOG for 8.9.3

[ci skip]

CHANGELOG

@@ -23,13 +23,21 @@ v 8.10.0 (unreleased)
   - Allow [ci skip] to be in any case and allow [skip ci]. !4785 (simon_w)
   - Add basic system information like memory and disk usage to the admin panel
 
-v 8.9.3 (unreleased)
-  - MergeRequestDiff reload content use update_columns to avoid multiple YAML de/serializations
-  - Decreased min width of screen to 1280px for pinned sidebar
-  - Fix encrypted data backwards compatibility after upgrading attr_encrypted gem
-  - Update mobile button icons to be more inline with typical UI paradigms
-  - Fixes missing avatar on system notes. !4954
-  - Improve performance of obtaining the maximum access of a user in a project
+v 8.9.3
+  - Fix encrypted data backwards compatibility after upgrading attr_encrypted gem. !4963
+  - Fix rendering of commit notes. !4953
+  - Resolve "Pin should show up at 1280px min". !4947
+  - Switched mobile button icons to ellipsis and angle. !4944
+  - Correctly returns todo ID after creating todo. !4941
+  - Better debugging for memory killer middleware. !4936
+  - Remove duplicate new page btn from edit wiki. !4904
+  - Use clock_gettime for all performance timestamps. !4899
+  - Use memorized tags array when searching tags by name. !4859
+  - Fixed avatar alignment in new MR view. !4901
+  - Removed fade when filtering results. !4932
+  - Fix missing avatar on system notes. !4954
+  - Reduce overhead and optimize ProjectTeam#max_member_access performance. !4973
+  - Use update_columns to by_pass all the dirty code on active_record. !4985
 
 v 8.9.2
   - Fix visibility of snippets when searching.