* **API**: Query database from /api/health endpoint. [#28349](https://github.com/grafana/grafana/pull/28349), [@ceh](https://github.com/ceh)
* **Alerting**: Return proper status code when trying to create alert notification channel with duplicate name or uid. [#28043](https://github.com/grafana/grafana/pull/28043), [@jgulick48](https://github.com/jgulick48)
* **Backend plugins**: Support Forward OAuth Identity for backend data source plugins. [#27055](https://github.com/grafana/grafana/pull/27055), [@billoley](https://github.com/billoley)
* **CloudWatch**: Add support for AWS/ClientVPN metrics and dimensions. [#29055](https://github.com/grafana/grafana/pull/29055), [@marefr](https://github.com/marefr)
* **ColorSchemes**: Adds more color schemes and text colors that depend on the background. [#28305](https://github.com/grafana/grafana/pull/28305), [@torkelo](https://github.com/torkelo)
* **Currency**: Adds Indonesian IDR currency. [#28363](https://github.com/grafana/grafana/pull/28363), [@hiddenrebel](https://github.com/hiddenrebel)
* **Data source proxy**: Convert 401 HTTP status code from data source to 400. [#28962](https://github.com/grafana/grafana/pull/28962), [@aknuds1](https://github.com/aknuds1)
* **Dependencies**: Update angularjs to 1.8.2. [#28736](https://github.com/grafana/grafana/pull/28736), [@torkelo](https://github.com/torkelo)
* **Docker**: Use root group in the custom Dockerfile. [#28639](https://github.com/grafana/grafana/pull/28639), [@chugunov](https://github.com/chugunov)
* **Elasticsearch**: Add Moving Function Pipeline Aggregation. [#28131](https://github.com/grafana/grafana/pull/28131), [@simianhacker](https://github.com/simianhacker)
* **Elasticsearch**: Interpolate variables in Filters Bucket Aggregation. [#28969](https://github.com/grafana/grafana/pull/28969), [@Elfo404](https://github.com/Elfo404)
* **LogsPanel**: Don't show scroll bars when not needed. [#28972](https://github.com/grafana/grafana/pull/28972), [@aocenas](https://github.com/aocenas)
* **OAuth**: Configurable user name attribute. [#28286](https://github.com/grafana/grafana/pull/28286), [@alexanderzobnin](https://github.com/alexanderzobnin)
* **Provisioning**: build paths in an os independent way. [#29143](https://github.com/grafana/grafana/pull/29143), [@amattheisen](https://github.com/amattheisen)
* **StatPanels**: Add new calculation option for percentage difference. [#26369](https://github.com/grafana/grafana/pull/26369), [@jedstar](https://github.com/jedstar)
* **Graph**: Fixes stacking issues like floating bars when data is not aligned. [#29051](https://github.com/grafana/grafana/pull/29051), [@torkelo](https://github.com/torkelo)
* **Image uploader**: Fix uploading of images to GCS. [#26493](https://github.com/grafana/grafana/pull/26493), [@gastonqiu](https://github.com/gastonqiu)
* **Plugins**: Fix panic when using complex dynamic URLs in app plugin routes. [#27977](https://github.com/grafana/grafana/pull/27977), [@cinaglia](https://github.com/cinaglia)
* **Provisioning**: Fixed problem with getting started panel being added to custom home dashboard. [#28750](https://github.com/grafana/grafana/pull/28750), [@torkelo](https://github.com/torkelo)
* **Variables**: Fixes loading with a custom all value in url. [#28958](https://github.com/grafana/grafana/pull/28958), [@hugohaggmark](https://github.com/hugohaggmark)
### Breaking changes
We have upgraded AngularJS from version 1.6.6 to 1.8.2. Due to this upgrade some old angular plugins might stop working and will require an small update. This is due to the deprecation and removal of pre-assigned bindings. So if your custom angular controllers expect component bindings in the controller constructor you need to move this code to an `$onInit` function. For more details on how to migrate AngularJS code open the [migration guide](https://docs.angularjs.org/guide/migration) and search for **pre-assigning bindings**.
We have upgraded AngularJS from version 1.6.6 to 1.8.2. Due to this upgrade some old angular plugins might stop working and will require a small update. This is due to the deprecation and removal of pre-assigned bindings. So if your custom angular controllers expect component bindings in the controller constructor you need to move this code to an `$onInit` function. For more details on how to migrate AngularJS code open the [migration guide](https://docs.angularjs.org/guide/migration) and search for **pre-assigning bindings**.
In order not to break all angular panel plugins and data sources we have some custom [angular inject behavior](https://github.com/grafana/grafana/blob/master/public/app/core/injectorMonkeyPatch.ts) that makes sure that bindings for these controllers are still set before constructor is called so many old angular panels and data source plugins will still work. Issue [#28736](https://github.com/grafana/grafana/issues/28736)
### Plugin development fixes & changes
In order not to break all angular panel plugins and data sources we have some custom [angular inject behavior](https://github.com/grafana/grafana/blob/master/public/app/core/injectorMonkeyPatch.ts) that makes sure that bindings for these controllers are still set before constructor is called so many old angular panels and data source plugins will still work.
* **FieldColor**: Handling color changes when switching panel types. [#28875](https://github.com/grafana/grafana/pull/28875), [@dprokop](https://github.com/dprokop)
* **CodeEditor**: added support for javascript language. [#28818](https://github.com/grafana/grafana/pull/28818), [@ae3e](https://github.com/ae3e)
* **grafana/toolkit**: Allow builds with lint warnings. [#28810](https://github.com/grafana/grafana/pull/28810), [@dprokop](https://github.com/dprokop)
* **grafana/toolkit**: Drop console and debugger statements by default when building plugin. [#28776](https://github.com/grafana/grafana/pull/28776), [@dprokop](https://github.com/dprokop)