changelog: add notes about closing #13711

CHANGELOG.md

@@ -31,6 +31,7 @@
 * **Piechart/Flot**: Fixes multiple piechart instances with donut bug [#15062](https://github.com/grafana/grafana/pull/15062)
 * **Dataproxy**: Override incoming Authorization header [#13815](https://github.com/grafana/grafana/issues/13815), thx [@kornholi](https://github.com/kornholi)
 * **Dataproxy**: Add global datasource proxy timeout setting [#5699](https://github.com/grafana/grafana/issues/5699), thx [@RangerRick](https://github.com/RangerRick)
+* **Database**: Support specifying database host using IPV6 for backend database and sql datasources [#13711](https://github.com/grafana/grafana/issues/13711), thx [@ellisvlad](https://github.com/ellisvlad)
 
 ### Bug fixes
 * **Search**: Fix for issue with scrolling the "tags filter" dropdown, fixes [#14486](https://github.com/grafana/grafana/issues/14486)