Working with custom patch baselines - AWS Systems Manager
This documentation is a draft for private preview for regions in the AWS European Sovereign Cloud. Documentation content will continue to evolve. Published: December 31, 2025.

AWS Systems Manager Change Manager is no longer open to new customers. Existing customers can continue to use the service as normal. For more information, see AWS Systems Manager Change Manager availability change.

Working with custom patch baselines

Patch Manager, a tool in AWS Systems Manager, includes a predefined patch baseline for each operating system supported by Patch Manager. You can use these patch baselines (you can't customize them), or you can create your own.

The following procedures describe how to create, update, and delete your own custom patch baselines. To learn more about patch baselines, see Predefined and custom patch baselines.