Update CHANGELOG

Author: codeaholicguy

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+## [0.4.2] - 2025-11-05
 
 - Fixed Gemini CLI integration https://github.com/codeaholicguy/ai-devkit/issues/3
 - Added test for TemplateManager.ts