diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97345fa..6105b42 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]
 
+## [0.4.0] - 2025-11-04
+
 ### BREAKING CHANGES
 
 #### Schema Migration: Old Tables Removed