docs: update CHANGELOG

Author: markuslf

CHANGELOG.md

@@ -7,6 +7,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+tbd
+
+
+## [v2.1.0] - 2025-06-20
+
 ### Added ("feat")
 
 Icinga Director:
@@ -1878,7 +1883,8 @@ Monitoring Plugins:
 Initial release for the general public.
 
 
-[Unreleased]: https://github.com/Linuxfabrik/monitoring-plugins/compare/v2.0.0...HEAD
+[Unreleased]: https://github.com/Linuxfabrik/lfops/compare/v2.1.0...HEAD
+[v2.1.0]: https://github.com/Linuxfabrik/lfops/compare/v2.0.0...v2.1.0
 [v2.0.0]: https://github.com/Linuxfabrik/monitoring-plugins/compare/v1.2.0.11...v2.0.0
 [v1.2.0.11]: https://github.com/Linuxfabrik/monitoring-plugins/compare/2024060401...v1.2.0.11
 [2024060401]: https://github.com/Linuxfabrik/monitoring-plugins/compare/2024052901...2024060401