Update CHANGELOG.md

Author: nhorton

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to DeepWork 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).
 
-## [0.3.0] - Unreleased
+## [0.3.0] - 2026-01-18
 
 ### Added
 - Cross-platform hook wrapper system for writing hooks once and running on multiple platforms