changelog: Second epochs are now correctly converted to ms.

CHANGELOG.md

@@ -19,6 +19,7 @@
 * **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)
 * **Sidenav**: Show create dashboard link for viewers if at least editor in one folder [#11858](https://github.com/grafana/grafana/issues/11858)
+* **SQL**: Second epochs are now correctly converted to ms. [#12085](https://github.com/grafana/grafana/pull/12085)
 
 # 5.1.3 (2018-05-16)