Sourced from aws-cdk-lib's releases.

v2.260.0

Features

• update L1 CloudFormation resource definitions (#38151) (f266a47), closes /docs.aws.amazon.com/AmazonS3/latest/userguide/s3-files-prereq-policies.html#s3
• core: add external traces to ConstructError (#38131) (e360dd9)
• core: append external stack traces to metadata if available (#38124) (c77a08c)

Bug Fixes

• bundling: docker build can be skipped if already performed (#38134) (2f9ae95)
• core: stack traces contain decorator paths (#38130) (318f645)
• core: weak cross-stack references fail for list attributes (#37948) (6bb9d75), closes #37910
• lambda-nodejs: reuse posixShellEscape for Docker bundling file operations (#38133) (baa9e1d)

---

Alpha modules (2.260.0-alpha.0)

v2.259.0

⚠ BREAKING CHANGES

• lambda: Runtime.NODEJS_LATEST now resolves to nodejs24.x in every region. Customers who pin to a concrete runtime (Runtime.NODEJS_22_X, useLatestRuntimeVersion: false in aws-lambda-nodejs.NodejsFunction) are unaffected. Existing AWS::Lambda::Function resources synthesized with NODEJS_LATEST will see Runtime: nodejs22.x → Runtime: nodejs24.x on next deploy. Lambda accepts runtime updates in place.

  Customer-code compatibility — IMPORTANT: Node.js 24 removes support for callback-style asynchronous handlers ((event, context, callback) => {...}) per the launch blog. Customers whose Lambda code still uses callback-based handlers will see runtime errors after the bump. Customers should migrate to async (event, context) => {...} or pin to Runtime.NODEJS_22_X explicitly.

Features

• core: recommend the use of weak references if no choice has been made (#38070) (6e74e5e)
• ecs: add forceNewDeployment option for Fargate and EC2 services (#36797) (3d9c4df), closes #27762
• eks: use the recommended AL2023 instead of AL2 AMI type (under feature flag) (#37850) (6a2dcb7), closes #32211
• lambda: upgrade lambda and custom resource default runtime to nodejs24.x (#38031) (36c84c6)

Bug Fixes

• spec2cdk: sanitize hyphens in EventBridge event namespace names (#38088) (b8f41bf), closes 40aws-cdk/spec2cdk/lib/naming/conventions.ts#L195

Reverts

• "chore(bundling): check if docker image is cached before building" (#38116) (359f2fb), closes aws/aws-cdk#37951

---

Alpha modules (2.259.0-alpha.0)

v2.258.1

Reverts

• "chore(bundling): check if docker image is cached before building" (#38116) (8ec236c), closes aws/aws-cdk#37951

---

Alpha modules (2.258.1-alpha.0)

... (truncated)

Sourced from aws-cdk-lib's changelog.

Changelog

All notable changes to this project will be documented in this file. See standard-version for commit guidelines.

2.262.0-alpha.0 (2026-07-22)

Bug Fixes

• redshift-alpha: quote identifiers and escape literals containing special characters (#38269) (3cb6844)

2.261.0-alpha.0 (2026-07-02)

Features

• metrics-facade-alpha: generate metrics facades (#37334) (aa9beb0)

2.260.0-alpha.0 (2026-06-16)

2.259.0-alpha.0 (2026-06-11)

2.258.1-alpha.0 (2026-06-08)

2.258.0-alpha.0 (2026-06-04)

Features

• integ-tests-alpha: add option to set the provider log level (#38005) (c634a79)

Bug Fixes

• custom-resource-handlers: deterministic asset hashes for generated lambdas (#37634) (6c3d5bc), closes #34307
• glue-alpha: deprecate Ray Jobs (#38055) (3fa428b)
• glue-alpha: restore notifyDelayAfter to PySpark and Scala Spark ETL jobs (#37815) (05be88a), closes #33839
• integ-tests-alpha: assertion failures print too much unnecessary information (#37974) (bc0de1d)
• mediapackagev2-alpha: cdnAuth on OriginEndpoint now generates the required policy (#38013) (1d56b46)

2.257.0-alpha.0 (2026-05-21)

2.256.1-alpha.0 (2026-05-20)

2.256.0-alpha.0 (2026-05-19)

2.255.0-alpha.0 (2026-05-18)

Features

... (truncated)

• f266a47 feat: update L1 CloudFormation resource definitions (#38151)
• 318f645 fix(core): stack traces contain decorator paths (#38130)
• 2f9ae95 fix(bundling): docker build can be skipped if already performed (#38134)
• aeafa63 docs(pipelines): clarify format of DockerHub creds (#38132)
• baa9e1d fix(lambda-nodejs): reuse posixShellEscape for Docker bundling file operation...
• e360dd9 feat(core): add external traces to ConstructError (#38131)
• 5619d43 Merge branch 'main' into merge-back/2.259.0
• 6bb9d75 fix(core): weak cross-stack references fail for list attributes (#37948)
• c77a08c feat(core): append external stack traces to metadata if available (#38124)
• 772eeba chore: update analytics metadata blueprints
• Additional commits viewable in compare view