AWS AutoScalingInstanceRefresh Now Natively Supported in CloudFormation

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As of July 2026, AWS CloudFormation supports AutoScalingInstanceRefresh as a native update policy, eliminating a long-standing gap in Infrastructure-as-Code management for Auto Scaling Groups. Previously, teams had to choose between the limited AutoScalingRollingUpdate policy or triggering Instance Refresh outside the stack, both of which caused drift between declared and actual infrastructure state. This drift posed serious compliance risks in regulated environments such as PCI-DSS and SOC 2, where auditability and rollback traceability are mandatory. The new policy automatically triggers an instance refresh when replacement-requiring properties like AMI ID or instance type change, and ties rollback directly to CloudFormation stack rollback. It also supports advanced capabilities including Launch-Before-Terminate strategy, CloudWatch alarm-based abort conditions, checkpoint bake times, and ELB health check gates.

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