CDK update - March 2026

Index TL;DR Major Features CDK Mixins — From Preview to Stable EKS v2 Graduates to Stable CLI Improvements New L2 Constructs Service Enhancements Community Highlights Community Content & Resources How Can You Be Involved TL;DR CDK Mixins are now stable in aws-cdk-lib — compose reusable infrastructure behaviors across any construct without extra packages. EKS v2 graduated to stable with production-ready APIs. And the CLI shipped --revert-drift to fix drifted resources in a single command. These features are available in aws-cdk-lib v2.233.0 through v2.248.0 and aws-cdk CLI v2.1099.0 through v2.1117.0. Full changelogs on GitHub Releases . Major Features CDK Mixins — From Preview to Stable If you've been waiting to adopt Mixins, the wait is over. The core Mixins API ( Mixins.of() , Mixin , ConstructSelector ) landed in aws-cdk-lib in February, and the @aws-cdk/cfn-property-mixins package graduated to stable in March. That means the fluent .with() method now works on any construct — L1, L2