Update Changelog.md (#1444)

* Update Changelog.md

* add latest PR to changelog

* Update Changelog.md

Changelog.md

@@ -9,11 +9,15 @@
 ### Changed
 
 -   Update Tool "Logfile downloader and combiner" to handle the new csv file format.
--   Updated logging informtions
+-   Added MQTT topic `status` containing Digitalization Status. 
+-   Added timezone to MQTT topic `timestamp`.
+-   Disable heap logs by default
+-   Cleanup loglevel info (moved some entries to debug level)
+-   Updated logging informations
 
 ### Fixed
 
--   n.a.
+-   Corrected Version comparison between firmware and Web UI.
 
 ### Removed