29.6.3

Fixes

• [expect, @jest/expect-utils] ObjectContaining support sumbol as key (#14414)
• [expect] Remove @types/node from dependencies (#14385)
• [jest-core] Use workers in watch mode by default to avoid crashes (#14059 & #14085).
• [jest-reporters] Update istanbul-lib-instrument dependency to v6. (#14401)
• [jest-mock] Revert #13692 as it was a breaking change (#14429)
• [jest-mock] Revert #13866 as it was a breaking change (#14429)
• [jest-mock] Revert #13867 as it was a breaking change (#14429)
• [@jest/reporters] Marks Reporter's hooks as optional (#14433)
• [jest-runtime] Fix dynamic ESM import module bug when loaded module through jest.isolateModulesAsync (#14397)

Chore & Maintenance

• [jest-changed-files, jest-circus, jest-console, @jest/core, @jest/runtime, @jest/transform] Use invariant and notEmpty from jest-util rather than own internal (#14366)

29.6.0

Features

• [jest-circus, jest-snapshot] Add support for snapshot matchers in concurrent tests (#14139)
• [jest-cli] Include type definitions to generated config files (#14078)
• [jest-snapshot] Support arrays as property matchers (#14025)
• [jest-core, jest-circus, jest-reporter, jest-runner] Added support for reporting about start individual test cases using jest-circus (#14174)

Fixes

• [jest-circus] Prevent false test failures caused by promise rejections handled asynchronously (#14110)
• [jest-config] Handle frozen config object (#14054)
• [jest-config] Allow coverageDirectory and collectCoverageFrom in project config (#14180)
• [jest-core] Always use workers in watch mode to avoid crashes (#14059).
• [jest-environment-jsdom, jest-environment-node] Fix assignment of customExportConditions via testEnvironmentOptions when custom env subclass defines a default value (#13989)
• [jest-matcher-utils] Fix copying value of inherited getters (#14007)
• [jest-mock] Tweak typings to allow jest.replaceProperty() replace methods (#14008)
• [jest-mock] Improve user input validation and error messages of spyOn and replaceProperty methods (#14087)
• [jest-runtime] Bind jest.isolateModulesAsync to this (#14083)
• [jest-runtime] Forward wrapperLength to the Script constructor as columnOffset for accurate debugging (#14148)
• [jest-runtime] Guard _isMockFunction access with in (#14188)
• [jest-snapshot] Fix a potential bug when not using prettier and improve performance (#14036)
• [@jest/transform] Do not instrument .json modules (#14048)
• [jest-worker] Restart a shut down worker before sending it a task (#14015)

Chore & Maintenance

• [*] Update semver dependency to get vulnerability fix (#14262)
• [docs] Updated documentation for the --runTestsByPath CLI command (#14004)
• [docs] Updated documentation regarding the synchronous fallback when asynchronous code transforms are unavailable (#14056)
• [docs] Update jest statistics of use and downloads in website Index.

29.4.3

Features

• [expect] Update toThrow() to be able to use error causes (#13606)
• [jest-core] allow to use workerIdleMemoryLimit with only 1 worker or runInBand option (#13846)
• [jest-message-util] Add support for error causes (#13868 & #13912)
• [jest-runtime] Revert import assertions for JSON modules as it's been relegated to Stage 2 (#13911)

Fixes

• [@jest/expect-utils] subsetEquality should consider also an object's inherited string keys (#13824)
• [jest-mock] Clear mock state when jest.restoreAllMocks() is called (#13867)
• [jest-mock] Prevent mockImplementationOnce and mockReturnValueOnce bleeding into withImplementation (#13888)
• [jest-mock] Do not restore mocks when jest.resetAllMocks() is called (#13866)

29.4.2

Features

• [@jest/core] Instrument significant lifecycle events with performance.mark() (#13859)

Fixes

• [expect, @jest/expect] Provide type of actual as a generic argument to Matchers to allow better-typed extensions (#13848)
• [jest-circus] Added explicit mention of test failing because done() is not being called in error message (#13847)
• [jest-runtime] Handle CJS re-exports of node core modules from ESM (#13856)
• [jest-transform] Downgrade write-file-atomic to v4 (#13853)
• [jest-worker] Ignore IPC messages not intended for Jest (#13543)

Chore & Maintenance

• [*] make sure to exclude .eslintcache from published module (#13832)
• [docs] Cleanup incorrect links in CHANGELOG.md (#13857)

29.4.0

Features

• [expect, @jest/expect-utils] Support custom equality testers (#13654)
• [jest-config, jest-worker] Use os.availableParallelism if available to calculate number of workers to spawn (#13738)
• [@jest/globals, jest-mock] Add jest.replaceProperty() that replaces property value (#13496)
• [jest-haste-map] ignore Sapling vcs directories (.sl/) (#13674)
• [jest-resolve] Support subpath imports (#13705, #13723, #13777)
• [jest-runtime] Add jest.isolateModulesAsync for scoped module initialization of asynchronous functions (#13680)
• [jest-runtime] Add jest.isEnvironmentTornDown function (#13741)
• [jest-test-result] Added skipped and focused status to FormattedTestResult (#13700)
• [jest-transform] Support for asynchronous createTransformer (#13762)

Fixes

• [jest-environment-node] Fix non-configurable globals (#13687)
• [@jest/expect-utils] toMatchObject should handle Symbol properties (#13639)
• [jest-mock] Fix mockReset and resetAllMocks undefined return value(#13692)
• [jest-resolve] Add global paths to require.resolve.paths (#13633)
• [jest-resolve] Correct node core module detection when using node: specifiers (#13806)
• [jest-runtime] Support WASM files that import JS resources (#13608)
• [jest-runtime] Use the scriptTransformer cache in jest-runner (#13735)
• [jest-runtime] Enforce import assertions when importing JSON in ESM (#12755 & #13805)
• [jest-snapshot] Make sure to import babel outside of the sandbox (#13694)
• [jest-transform] Ensure the correct configuration is passed to preprocessors specified multiple times in the transform option (#13770)

Chore & Maintenance

• [@jest/fake-timers] Update @sinonjs/fake-timers (#13612)
• [docs] Improve custom puppeteer example to prevent worker warnings (#13619)

29.0.0

Features

• [expect] [BREAKING] Differentiate between MatcherContext MatcherUtils and MatcherState types (#13141)
• [jest-circus] Add support for test.failing.each (#13142)
• [jest-config] [BREAKING] Make snapshotFormat default to escapeString: false and printBasicPrototype: false (#13036)
• [jest-config] [BREAKING] Remove undocumented collectCoverageOnlyFrom option (#13156)
• [jest-environment-jsdom] [BREAKING] Upgrade to jsdom@20 (#13037, #13058)
• [@jest/globals] Add jest.Mocked, jest.MockedClass, jest.MockedFunction and jest.MockedObject utility types (#12727)
• [jest-mock] [BREAKING] Refactor Mocked* utility types. MaybeMockedDeep and MaybeMocked became Mocked and MockedShallow respectively; only deep mocked variants of MockedClass, MockedFunction and MockedObject are exported (#13123, #13124)
• [jest-mock] [BREAKING] Change the default jest.mocked helper’s behavior to deep mocked (#13125)
• [jest-snapshot] [BREAKING] Let babel find config when updating inline snapshots (#13150)
• [@jest/test-result, @jest/types] [BREAKING] Replace Bytes and Milliseconds types with number (#13155)
• [jest-worker] Adds workerIdleMemoryLimit option which is used as a check for worker memory leaks >= Node 16.11.0 and recycles child workers as required (#13056, #13105, #13106, #13107)
• [pretty-format] [BREAKING] Remove ConvertAnsi plugin in favour of jest-serializer-ansi-escapes (#13040)
• [pretty-format] Allow to opt out from sorting object keys with compareKeys: null (#12443)

Fixes

• [jest-config] Fix testing multiple projects with TypeScript config files (#13099)
• [@jest/expect-utils] Fix deep equality of ImmutableJS Record (#13055)
• [jest-haste-map] Increase the maximum possible file size that jest-haste-map can handle (#13094)
• [jest-runtime] Properly support CJS re-exports from dual packages (#13170)
• [jest-snapshot] Make prettierPath optional in SnapshotState (#13149)
• [jest-snapshot] Fix parsing error from inline snapshot files with JSX (#12760)
• [jest-worker] When a process runs out of memory worker exits correctly and doesn't spin indefinitely (#13054)

Chore & Maintenance

• [*] [BREAKING] Drop support for Node v12 and v17 (#13033)
• [docs] Fix webpack name (#13049)
• [docs] Explicit how to set n for --bail (#13128)
• [docs] Update Enzyme URL (#13166)
• [jest-leak-detector] Remove support for weak-napi (#13035)
• [jest-snapshot] [BREAKING] Require rootDir as argument to SnapshotState (#13150)