***API**: Readonly datasources should not be created via the API. [#19006](https://github.com/grafana/grafana/pull/19006), [@papagian](https://github.com/papagian)
***Alerting**: Include configured AlertRuleTags in Webhooks notifier. [#18233](https://github.com/grafana/grafana/pull/18233), [@dominic-miglar](https://github.com/dominic-miglar)
***Annotations**: Add annotations support to Loki. [#18949](https://github.com/grafana/grafana/pull/18949), [@aocenas](https://github.com/aocenas)
***Annotations**: Use a single row to represent a region. [#17673](https://github.com/grafana/grafana/pull/17673), [@ryantxu](https://github.com/ryantxu)
***Auth**: Allow inviting existing users when login form is disabled. [#19048](https://github.com/grafana/grafana/pull/19048), [@548017](https://github.com/548017)
***Azure Monitor**: Add support for cross resource queries. [#19115](https://github.com/grafana/grafana/pull/19115), [@sunker](https://github.com/sunker)
***Dashboard**: Adds Logs Panel (alpha) as visualization option for Dashboards. [#18641](https://github.com/grafana/grafana/pull/18641), [@hugohaggmark](https://github.com/hugohaggmark)
***Dashboard**: Reuse query results between panels . [#16660](https://github.com/grafana/grafana/pull/16660), [@ryantxu](https://github.com/ryantxu)
***Dashboard**: Set time to to 23:59:59 when setting To time using calendar. [#18595](https://github.com/grafana/grafana/pull/18595), [@simPod](https://github.com/simPod)
***DataLinks**: Add DataLinks support to Gauge, BarGauge and SingleStat2 panel. [#18605](https://github.com/grafana/grafana/pull/18605), [@ryantxu](https://github.com/ryantxu)
***DataLinks**: Enable access to labels & field names. [#18918](https://github.com/grafana/grafana/pull/18918), [@torkelo](https://github.com/torkelo)
***DataLinks**: Enable multiple data links per panel. [#18434](https://github.com/grafana/grafana/pull/18434), [@dprokop](https://github.com/dprokop)
***Docker**: switch docker image to alpine base with phantomjs support. [#18468](https://github.com/grafana/grafana/pull/18468), [@DanCech](https://github.com/DanCech)
***Elasticsearch**: allow templating queries to order by doc_count. [#18870](https://github.com/grafana/grafana/pull/18870), [@hackery](https://github.com/hackery)
***Explore**: Add throttling when doing live queries. [#19085](https://github.com/grafana/grafana/pull/19085), [@aocenas](https://github.com/aocenas)
***Explore**: Adds ability to go back to dashboard, optionally with query changes. [#17982](https://github.com/grafana/grafana/pull/17982), [@kaydelaney](https://github.com/kaydelaney)
***Explore**: Reduce default time range to last hour. [#18212](https://github.com/grafana/grafana/pull/18212), [@davkal](https://github.com/davkal)
***Gauge/BarGauge**: Support decimals for min/max. [#18368](https://github.com/grafana/grafana/pull/18368), [@ryantxu](https://github.com/ryantxu)
***Graph**: New series override transform constant that renders a single point as a line across the whole graph. [#19102](https://github.com/grafana/grafana/pull/19102), [@davkal](https://github.com/davkal)
***Image rendering**: Add deprecation warning when PhantomJS is used for rendering images. [#18933](https://github.com/grafana/grafana/pull/18933), [@papagian](https://github.com/papagian)
***InfluxDB**: Enable interpolation within ad-hoc filter values. [#18077](https://github.com/grafana/grafana/pull/18077), [@kvc-code](https://github.com/kvc-code)
***LDAP**: Allow an user to be synchronized against LDAP. [#18976](https://github.com/grafana/grafana/pull/18976), [@gotjosh](https://github.com/gotjosh)
***OAuth**: Support JMES path lookup when retrieving user email. [#14683](https://github.com/grafana/grafana/pull/14683), [@bobmshannon](https://github.com/bobmshannon)
***OAuth**: return GitLab groups as a part of user info (enable team sync). [#18388](https://github.com/grafana/grafana/pull/18388), [@alexanderzobnin](https://github.com/alexanderzobnin)
***Panels**: Add unit for electrical charge - ampere-hour. [#18950](https://github.com/grafana/grafana/pull/18950), [@anirudh-ramesh](https://github.com/anirudh-ramesh)
***Plugins**: better warning when plugins fail to load. [#18671](https://github.com/grafana/grafana/pull/18671), [@ryantxu](https://github.com/ryantxu)
***Postgres**: Add support for scram sha 256 authentication. [#18397](https://github.com/grafana/grafana/pull/18397), [@nonamef](https://github.com/nonamef)
***RemoteCache**: Support SSL with Redis. [#18511](https://github.com/grafana/grafana/pull/18511), [@kylebrandt](https://github.com/kylebrandt)
***SingleStat**: The gauge option in now disabled/hidden (unless it's an old panel with it already enabled) . [#18610](https://github.com/grafana/grafana/pull/18610), [@ryantxu](https://github.com/ryantxu)
***Stackdriver**: Add extra alignment period options. [#18909](https://github.com/grafana/grafana/pull/18909), [@sunker](https://github.com/sunker)
***Units**: Add South African Rand (ZAR) to currencies. [#18893](https://github.com/grafana/grafana/pull/18893), [@jeteon](https://github.com/jeteon)
***Units**: Adding T,P,E,Z,and Y bytes. [#18706](https://github.com/grafana/grafana/pull/18706), [@chiqomar](https://github.com/chiqomar)
### Bug Fixes
***Alerting**: Notification is sent when state changes from no_data to ok. [#18920](https://github.com/grafana/grafana/pull/18920), [@papagian](https://github.com/papagian)
***Alerting**: fix duplicate alert states when the alert fails to save to the database. [#18216](https://github.com/grafana/grafana/pull/18216), [@kylebrandt](https://github.com/kylebrandt)
***CloudWatch**: Fix alerting for queries with Id (using GetMetricData). [#17899](https://github.com/grafana/grafana/pull/17899), [@alex-berger](https://github.com/alex-berger)
***Explore**: Fix auto completion on label values for Loki. [#18988](https://github.com/grafana/grafana/pull/18988), [@aocenas](https://github.com/aocenas)
***Explore**: Fixes crash using back button with a zoomed in graph. [#19122](https://github.com/grafana/grafana/pull/19122), [@hugohaggmark](https://github.com/hugohaggmark)
***Explore**: Fixes so queries in Explore are only run if Graph/Table is shown. [#19000](https://github.com/grafana/grafana/pull/19000), [@hugohaggmark](https://github.com/hugohaggmark)
***MSSQL**: Change connectionstring to URL format to fix using passwords with semicolon. [#18384](https://github.com/grafana/grafana/pull/18384), [@Russiancold](https://github.com/Russiancold)
***MSSQL**: Fix memory leak when debug enabled. [#19049](https://github.com/grafana/grafana/pull/19049), [@briangann](https://github.com/briangann)
***Provisioning**: Allow escaping literal '$' with '$$' in configs to avoid interpolation. [#18045](https://github.com/grafana/grafana/pull/18045), [@kylebrandt](https://github.com/kylebrandt)
***TimePicker**: Fixes hiding time picker dropdown in FireFox. [#19154](https://github.com/grafana/grafana/pull/19154), [@hugohaggmark](https://github.com/hugohaggmark)
