aws-cdk

1.42.1 (2026-09-30)

1.42.0 (2026-09-23)

Features

• cli: support --change-set-name for cdk diff (#1982) (25b5038)
• unique change set names for diff, bootstrap and orphan (#1985) (29c9fe8), references #1982

Bug Fixes

• make plugins shape error more useful (#1987) (f3fd269)
• toolkit-lib: cdk refactor bypasses proxy config when discovering the deployment role (#1986) (f52b435)
• toolkit-lib: cdk watch loses log events when one log group is throttled (#1992) (e4d65d8), closes #879, references #879
• toolkit-lib: classify create-only properties as non-hotswappable (#1967) (87ce486), closes #1965
• toolkit-lib: diff leaves a deleting shell stack behind, breaking the next deploy (#1994) (9c6bd0e), closes #1993
• toolkit-lib: hotswap template cache ignores target environment (#1875) (63fc88a), closes #1874
• toolkit-lib: stale synth lock blocks every later synth when the CLI gets the same PID (#1991) (77b3cd6), closes #1990, references aws/aws-cdk#24946
• validation errors in non-top-level-Stack not reported (#1981) (da1a2e0), closes #1974

1.41.0 (2026-09-09)

Features

• cli: cdk synth --watch re-synthesizes on file changes (#1851) (ef24968), closes #1782
• exclude stacks from the selection with ! patterns (#1920) (021a083), closes #1908 #758 #1909

Bug Fixes

• cloud control hotswap removes reserved aws: tags (#1940) (ba340b3)
• toolkit-lib: guard against a stack with no metadata in countAssemblyResults (#1952) (c07d251), closes aws-amplify/amplify-backend#3316 aws-amplify/amplify-backend#3316
• toolkit-lib: reject discovered Windows paths containing %VAR% (#1924) (ebf9bc5), closes #1763 #1849
• toolkit-lib: retry backoff has no jitter, retries stay in lockstep (#1942) (5280569), closes #1777 #1941 #1500 #1777 #1777
• toolkit-lib: throttled final event poll fails a successful deploy (#1941) (b4e81f7), closes #1777 #1777 #1777 #1950 #1777
• toolkit-lib: warn when hook failure detail can't be fetched (#1950) (03aebdc), closes #1923

1.40.0 (2026-08-26)

Features

• cli: warn of non-existent stacks in cdk destroy (#984) (ca8a14a)
• integ-runner: detect bootstrap errors and retry tests in valid regions (#1898) (f98fed5), closes #1115
• show the target environment in cdk diff stack headers (#1885) (f875d81), closes #286

Bug Fixes

• cli: gc 'print'/'tag' progress no longer shows NaN% or misleading '0 assets' (#1873) (10f688a), closes #625
• cli: guide Stage users to a working pattern in stack-selection error (#1847) (d51353e), closes #1451 #1451
• toolkit-lib: allowCrossAccountAssetPublishing cache ignores which stack's environment it was computed for (#1884) (f661b31), closes #1883 #1839
• toolkit-lib: cdk validate drops the plugin's customSeverity label (#1894) (7a7a4ba)
• toolkit-lib: clean up the loser of noOlderThan()'s timer/resolver race (#1870) (8d772fc), closes #1869
• toolkit-lib: finalizing deployment after refactor intermittently fails while stacks are still in UPDATE_IN_PROGRESS (#1805) (beb1e2f), closes #1804
• toolkit-lib: stack progress monitor double-counts the stack itself when a cleanup phase occurs (#1857) (2845174), closes #1856

1.39.0 (2026-08-19)

Features

• cli: add "errors-only" progress mode that only prints errors (#1800) (a4c0282)
• cli: support notification-arns in cdk import (#1740) (f8e7da1), closes aws/aws-cdk#23548

Bug Fixes

• bucket URL is incorrect for local S3 emulators (#1625) (927a6cc)
• toolkit-lib: asset publisher cache ignores environment on cache hit (#1839) (88f6ad1), closes #1838
• toolkit-lib: downstream stack selection uses wrong key for nested stacks (#1835) (a80074a), closes #1834
• toolkit-lib: drift numResourcesUnchecked ignores UNKNOWN-status resources (#1837) (4374bc6), closes #1836
• toolkit-lib: drop the deep clone used to remove one metadata key (#1826) (a826ad8), closes #1823 #1824
• toolkit-lib: fail gc on ECR tagging permission errors (#1828) (8e19558), closes #347
• toolkit-lib: hotswap deployments fail with TypeError when a nested stack output joins a List<> parameter (#1842) (bee9159), closes #1829
• toolkit-lib: hotswap silently drops empty-string Lambda Description (#1831) (da4c982), closes #1830
• toolkit-lib: NoStack masks the real error when a new stack fails to deploy (#1845) (a9a23b4), closes #1802 #1803 #1802
• toolkit-lib: stale REVIEW_IN_PROGRESS read fails a running deployment (#1848) (9321643), closes #1802 #1803

1.38.0 (2026-08-03)

Features

• toolkit-lib: diagnose hook failures in the central stack diagnoser (#1786) (8c37fc4)

Bug Fixes

• change-set diff can miss changes to JSON-typed properties (#1785) (129b1ae), closes #1780 #1780 /github.com/aws/aws-cdk-cli/issues/1780#issuecomment-5130161886
• toolkit-lib: refactor ignores a custom toolkit stack name (#1791) (ee9a40c), closes #1790

1.37.0 (2026-07-30)

Features

• toolkit-lib: add watchValidate action and cdk validate --watch (#1771) (49eaa58), closes #1762
• toolkit-lib: simplify deploy approval message and surface auto-confirm (#1585) (0062024), closes #828
• toolkit-lib: surface CloudTrail control-plane errors for failed resources (#1676) (7ca5b57)
• toolkit-lib: Use COLUMNS env var for tables (#1704) (53368d1)

Bug Fixes

• toolkit-lib: disable aws-cdk-lib's built-in template validation in unit tests (#1770) (b8afc68), closes #1705 #1705 aws/aws-cdk#38378
• toolkit-lib: hooks without annotations fail deployments without showing failure details (#1768) (bed2a65)
• toolkit-lib: preserve publishing role for import templates (#1665) (3eea303), closes #1664

1.36.1 (2026-07-23)

Bug Fixes

• cli: forward --no-validation to the app process via CDK_VALIDATION (#1756) (712d792), closes #1751 aws/aws-cdk#38379 aws/aws-cdk#38378
• improve error surfacing, express mode attempts to update stack instead of using rollback API (#1745) (19c046f), closes #1739

1.36.0 (2026-07-22)

Features

• cloud-assembly-schema: add preamble feature, document contract (#1735) (5dabfb8)

Bug Fixes

• cli: entire violation report is printed in red (#1742) (c670960)
• toolkit-lib: support cdk orphan for resources inside a stage (#1733) (9398ed0), closes #1727