diff --git a/ChangeLog.md b/ChangeLog.md
index 71eeee9e42..9b0a757902 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [4.12.9] - 2024-10-25
+
 ### Fixed
 
 - Fix analyzer [RCS1090](https://josefpihrt.github.io/docs/roslynator/analyzers/RCS1090) ([PR](https://github.com/dotnet/roslynator/pull/1566))