Update changelog for version 0.22.3 release

Author: t00ts

CHANGELOG.md

@@ -7,7 +7,7 @@ More expansive patch notes and explanations may be found in the specific [pathfi
 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]
+## [0.22.3] - 2026-04-20
 
 ### Changed