Today, AWS Systems Manager announces auto-update support for the EC2 Windows, Linux and Mac launch agents in Quick Setup. Up to now, customers only had documentation available to help them manually install and upgrade their EC2 launch agent. With this launch, customers can now enable automatic upgrades with a few clicks in the console in order to get the latest bug fixes, security patches and feature updates for their EC2 launch agents across accounts and Regions in their Organization.
Source:: Amazon AWS