changelog: adds note about closing #7886 & #6202

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ### New Features
 
+* **Alerting**: Introduce alert debouncing with the `FOR` setting. [#7886](https://github.com/grafana/grafana/issues/7886) & [#6202](https://github.com/grafana/grafana/issues/6202)
 * **Alerting**: Option to disable OK alert notifications [#12330](https://github.com/grafana/grafana/issues/12330) & [#6696](https://github.com/grafana/grafana/issues/6696), thx [@davewat](https://github.com/davewat)
 * **Postgres/MySQL/MSSQL**: Adds support for configuration of max open/idle connections and connection max lifetime. Also, panels with multiple SQL queries will now be executed concurrently [#11711](https://github.com/grafana/grafana/issues/11711), thx [@connection-reset](https://github.com/connection-reset)
 * **MySQL**: Graphical query builder [#13762](https://github.com/grafana/grafana/issues/13762), thx [svenklemm](https://github.com/svenklemm)