***Annotations**: Support PATCH verb in annotations http api [#12546](https://github.com/grafana/grafana/issues/12546), thx [@SamuelToh](https://github.com/SamuelToh)
***Templating**: Add json formatting to variable interpolation [#15291](https://github.com/grafana/grafana/issues/15291), thx [@mtanda](https://github.com/mtanda)
***Login**: Anonymous usage stats for token auth [#15288](https://github.com/grafana/grafana/issues/15288)
***Alerting**: Fixes crash bug when alert notifier folders are missing [#15295](https://github.com/grafana/grafana/issues/15295)
