Update CHANGELOG.md

Author: kisonay

CHANGELOG.md

@@ -4,8 +4,7 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## Unrelease
-
+## 1.1.0 - 2023-04-10
 ### Updated
 - feat: Craft CMS 4.x compatibility work