AWS AWSCloudFormation documentation change
Summary
Restructured documentation from User Guide Release History to Template Reference document history, removed multiple deprecated features and entries (IaC generator, Amazon Q troubleshooting, StackSet drift APIs), updated links to reference Template Reference instead of User Guide content.
Security assessment
The changes are administrative/documentation restructuring without any references to security vulnerabilities, mitigations, or new security features. Removed content relates to feature deprecations rather than security improvements.