Update CHANGELOG.md

Author: Syati

CHANGELOG.md

@@ -1,13 +1,13 @@
-# Changelog
-
-## [0.4.1] - 2025-09-09
-
+# Changelog
+
+## [0.5.0] - 2025-09-09
+
 ## What's Changed
 * Update attributes method signatures to use optional keyword arguments… by @Syati in https://github.com/Syati/structured_params/pull/8
 
 
-**Full Changelog**: https://github.com/Syati/structured_params/compare/v0.4.0...v0.4.1
-
+**Full Changelog**: https://github.com/Syati/structured_params/compare/v0.3.0...v0.5.0
+
 ## [0.3.0] - 2025-09-06
 
 ## What's Changed
@@ -32,3 +32,4 @@
 - RBS type definitions
 - Comprehensive test suite
 
+