diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5db89431c..17f83fed2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,3 +3,4 @@
 ## [UNRELEASED]
 
 - Add this changelog file. [#507](https://github.com/github/codeql-action/pull/507)
+- Improve grouping of analysis logs. Add a new log group containing a summary of metrics and diagnostics, if they were produced by CodeQL builtin queries. [#515](https://github.com/github/codeql-action/pull/515)
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