***Alerting**: Add alert message to webhook notifications [#6807](https://github.com/grafana/grafana/issues/6807)
***PNG Rendering**: Fix for server side rendering when using non default http addr bind and domain setting [#6813](https://github.com/grafana/grafana/issues/6813)
# 4.0.1 (2016-12-02)
> **Notice**
4.0.0 had serious connection pooling issue when using a data source in proxy access. This bug caused lots of resource issues
due to too many connections/file handles on the data source backend. This problem is fixed in this release.
> **Notice**
4.0.0 had serious connection pooling issue when using a data source in proxy access. This bug caused lots of resource issues
due to too many connections/file handles on the data source backend. This problem is fixed in this release.
### Bugfixes
***Metrics**: Fixes nil pointer dereference on my arm build [#6749](https://github.com/grafana/grafana/issues/6749)