***Cloudwatch**: Make it possible to specify access and secret key on the data source config page [#6697](https://github.com/grafana/grafana/issues/6697)
***Table**: Added Hidden Column Style for Table Panel [#5677](https://github.com/grafana/grafana/pull/5677)
# 4.0.1 (unreleased)
# 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.
### Bugfixes
***Metrics**: Fixes nil pointer dereference on my arm build [#6749](https://github.com/grafana/grafana/issues/6749)
***Data proxy**: Fixes a tcp pooling issue in the datasource reverse proxy [#6759](https://github.com/grafana/grafana/issues/6759)
