AWS Systems Manager Gets Smarter at Spotting Why Your EC2 Instances Won't Play Ball
AWS Systems Manager now diagnoses six additional issue categories—IAM permissions, SSM Agent version, instance status checks, OS config, Default Host Management Configuration, and hybrid activation—that prevent EC2 instances from becoming managed. You get step-by-step fixes and can even run automation runbooks directly from the console to resolve problems faster across your entire fleet.
source: [aws/whats-new]