***Elasticsearch**: Fix switching to/from es raw document metric query [#6367](https://github.com/grafana/grafana/issues/6367)
***Elasticsearch**: Fix deprecation warning about terms aggregation order key in Elasticsearch 6.x [#11977](https://github.com/grafana/grafana/issues/11977)
***Table**: Fix CSS alpha background-color applied twice in table cell with link [#13606](https://github.com/grafana/grafana/issues/13606), thx [@grisme](https://github.com/grisme)
***Singlestat**: Fix XSS in prefix/postfix [#13946](https://github.com/grafana/grafana/issues/13946), thx [@cinaglia](https://github.com/cinaglia)
***Units**: New clock time format, to format ms or second values as for example `01h:59m`, [#13635](https://github.com/grafana/grafana/issues/13635), thx [@franciscocpg](https://github.com/franciscocpg)
***Alerting**: Increaste default duration for queries [#13945](https://github.com/grafana/grafana/pull/13945)
***Alerting**: More options for the Slack Alert notifier [#13993](https://github.com/grafana/grafana/issues/13993), thx [@andreykaipov](https://github.com/andreykaipov)
