Update CHANGELOG.md

Author: preetkaran20

CHANGELOG.md

@@ -3,7 +3,8 @@ All notable changes to this add-on will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## Unreleased
-### Fixed
+
+## [1.2.1] - 2023-10-20
 - Fix exceptions using option introduced in previous version.
 
 ## [1.2.0] - 2023-10-19