Add changelog note

github-actions[bot] · github-actions[bot] · commit 8d9ed0b40e24 · 2024-09-10T13:26:12.000Z
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 2.18.4. [#2471](https://github.com/github/codeql-action/pull/2471)
 
 ## 3.26.6 - 29 Aug 2024
 
