• The AWS Systems Manager CloudWatch Dashboard will no longer be available after April 30, 2026. Customers can continue to use Amazon CloudWatch console to view, create, and manage their Amazon CloudWatch dashboards, just as they do today. For more information, see [Amazon CloudWatch Dashboard documentation](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Dashboards.html). 

# Patch baselines
<a name="patch-manager-patch-baselines"></a>

The topics in this section provide information about how patch baselines work in Patch Manager, a tool in AWS Systems Manager, when you run a `Scan` or `Install` operation on your managed nodes.

**Topics**
+ [Predefined and custom patch baselines](patch-manager-predefined-and-custom-patch-baselines.md)
+ [Package name formats for approved and rejected patch lists](patch-manager-approved-rejected-package-name-formats.md)
+ [Patch groups](patch-manager-patch-groups.md)
+ [Patching applications released by Microsoft on Windows Server](patch-manager-patching-windows-applications.md)