Add changelog note

github-actions[bot] · github-actions[bot] · commit a99bd84dff36 · 2023-12-19T15:27:07.000Z
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -6,7 +6,7 @@ Note that the only difference between `v2` and `v3` of the CodeQL Action is the
 
 ## [UNRELEASED]
 
-No user facing changes.
+- Update default CodeQL bundle version to 2.15.5. [#2047](https://github.com/github/codeql-action/pull/2047)
 
 ## 3.22.11 - 13 Dec 2023
 
