# Automated changes
<a name="auto-config-changes-made"></a>

The AMS Advanced automated instance configuration service makes changes, as needed, to your EC2 instances. 

**Topics**
+ [Automatically update code on Linux instances](auto-config-instance-code.md)
+ [Automatically update PBIS on Linux instances](auto-config-pbis.md)
+ [Automatically update the minimum version of SSM and CloudWatch agents](auto-config-changes-agents.md)
+ [CloudWatch configuration files, update details](auto-config-files.md)
+ [Automatically configured logs](auto-config-logs-cw.md)