***Login**: Add optional option sign out url for generic oauth [#9847](https://github.com/grafana/grafana/issues/9847), thx [@roidelapluie](https://github.com/roidelapluie)
***Login**: Use proxy server from environment variable if available [#9703](https://github.com/grafana/grafana/issues/9703), thx [@iyeonok](https://github.com/iyeonok)
***Invite users**: Friendlier error message when smtp is not configured [#12087](https://github.com/grafana/grafana/issues/12087), thx [@thurt](https://github.com/thurt)
***Graphite**: Don't send distributed tracing headers when using direct/browser access mode [#11494](https://github.com/grafana/grafana/issues/11494)
