# CHANGELOG

## 3.21.6 - 2017-01-27

* `Aws\CloudDirectory` - Added support for new service `AWS Cloud Directory`
* `Aws\CodeDeploy` - Added support for blue/green deployments
* `Aws\Ec2` - Added support to Add instance health check functionality to replace unhealthy EC2 Spot fleet instances with fresh ones.
* `Aws\Rds` -  Upgraded Snapshot Engine Version