May 2026 monthly summary: Delivery across two core CLI projects focused on migration readiness, regional flexibility, and improved developer UX, with measurable business value in faster migrations, safer cross-region deployments, and reduced toil. Key features shipped include Amplify CLI custom CDK resource migration support (gen2 migration) with improved type safety and generator refactor; AWS CDK CLI global region option to override region resolution for GovCloud/China usage; and CLI UX enhancements with unrecognized-options warnings and a robust reverse alias resolution to prevent false warnings. Major bug fixes include correcting alias handling to avoid misreported unknown options. The work is underpinned by comprehensive test coverage, snapshot updates, and code structure improvements that enhance maintainability and future scalability. Top 3-5 achievements: - Amplify CLI: custom CDK resource migration support – generator returns construct instances, Backend type annotations, file rename to construct.ts, and updated tests/snapshots (commit daa6a68...). - CDK CLI: global --region option added – highest-priority region override for GovCloud/China (commit ae2349b3...). - CLI UX: unrecognized options warnings introduced and alias handling improved – reverse alias map implemented (commit abd4f4c3...) and fixed alias resolution regression (commit 791408cf...). - Quality and coverage: expanded unit/integration/config tests across both repos, ensuring backward compatibility and safer migrations.

April 2026: Delivered security hardening for the cdklabs/cdk-from-cfn module by upgrading Rustls from 0.21 to 0.23, addressing audit failures and removing legacy TLS dependencies. The change disabled the legacy rustls path in AWS SDK crates and aligned TLS handling with the modern default-https-client path, enabling release readiness and compliance with multiple advisories.

March 2026 performance summary for the Amplify projects (aws-amplify/amplify-cli and aws-amplify/amplify-backend). Focused on reliability, performance, and developer experience. Delivered important features, fixed CI stability issues, and introduced tooling for failure analytics to improve observability and faster incident response.