v28.1.3

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Features

• [jest-leak-detector] Use native FinalizationRegistry when it exists to get rid of external C dependency (#​12973)

Fixes

• [jest-changed-files] Fix a lock-up after repeated invocations (#​12757)
• [@jest/expect-utils] Fix deep equality of ImmutableJS OrderedSets (#​12977)
• [jest-mock] Add index signature support for spyOn types (#​13013, #​13020)
• [jest-snapshot] Fix indentation of awaited inline snapshots (#​12986)

Chore & Maintenance

• [*] Replace internal usage of pretty-format/ConvertAnsi with jest-serializer-ansi-escapes (#​12935, #​13004)
• [docs] Update spyOn docs (#​13000)

v28.1.1

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Features

• [jest] Expose Config type (#​12848)
• [@jest/reporters] Improve GitHubActionsReporters annotation format (#​12826)
• [@jest/types] Infer argument types passed to test and describe callback functions from each tables (#​12885, #​12905)

Fixes

• [@jest/expect-utils] Fix deep equality of ImmutableJS OrderedMaps (#​12899)
• [jest-docblock] Handle multiline comments in parseWithComments (#​12845)
• [jest-mock] Improve spyOn error messages (#​12901)
• [jest-runtime] Correctly report V8 coverage with resetModules: true (#​12912)
• [jest-worker] Make JestWorkerFarm helper type to include methods of worker module that take more than one argument (#​12839)

Chore & Maintenance

• [docs] Updated docs to indicate that jest-environment-jsdom is a separate package #​12828
• [docs] Document the comments used by coverage providers #​12835
• [docs] Use docusaurus-remark-plugin-tab-blocks to format tabs with code examples (#​12859)
• [jest-haste-map] Bump walker version (#​12324)

v28.1.0

Compare Source

Features

• [jest-circus] Add failing test modifier that inverts the behavior of tests (#​12610)
• [jest-environment-node, jest-environment-jsdom] Allow specifying customExportConditions (#​12774)

Fixes

• [expect] Adjust typings of lastCalledWith, nthCalledWith, toBeCalledWith matchers to allow a case there a mock was called with no arguments (#​12807)
• [@jest/expect-utils] Fix deep equality of ImmutableJS Lists (#​12763)
• [jest-core] Do not collect SIGNREQUEST as open handles (#​12789)

Chore & Maintenance

• [docs] Specified documentation about --filter CLI docs (#​12799)
• [@jest-reporters] Move helper functions from utils.ts into separate files (#​12782)
• [jest-resolve] Replace process.versions.pnp type declaration with @types/pnpapi devDependency (#​12783)

v28.0.2

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Features

• [jest-worker] Add JestWorkerFarm helper type (#​12753)

Fixes

• [*] Lower Node 16 requirement to 16.10 from 16.13 due to a Node bug that causes memory and performance issues (#​12754)

v28.0.1

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Features

• [jest-resolve] Expose ResolverOptions type (#​12736)

Fixes

• [expect] Add missing dependency jest-util (#​12744)
• [jest-circus] Improve test.concurrent (#​12748)
• [jest-resolve] Correctly throw an error if jsdom test environment is used, but not installed (#​12749)

Chore & Maintenance

• [jest-serializer] Remove deprecated module from source tree (#​12735)

v28.0.0

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Features

• [babel-jest] Export createTransformer function (#​12399)
• [expect] Expose AsymmetricMatchers, MatcherFunction and MatcherFunctionWithState interfaces (#​12363, #​12376)
• [jest-circus] Support error logging before retry (#​12201)
• [jest-circus, jest-jasmine2] Allowed classes and functions as describe and it/test names (#​12484)
• [jest-cli, jest-config] [BREAKING] Remove testURL config, use testEnvironmentOptions.url instead (#​10797)
• [jest-cli, jest-core] Add --shard parameter for distributed parallel test execution (#​12546)
• [jest-cli] [BREAKING] Remove undocumented --timers option (#​12572)
• [jest-config] [BREAKING] Stop shipping jest-environment-jsdom by default (#​12354)
• [jest-config] [BREAKING] Stop shipping jest-jasmine2 by default (#​12355)
• [jest-config, @​jest/types] Add ci to GlobalConfig (#​12378)
• [jest-config] [BREAKING] Rename moduleLoader to runtime (#​10817)
• [jest-config] [BREAKING] Rename extraGlobals to sandboxInjectedGlobals (#​10817)
• [jest-config] [BREAKING] Throw an error instead of showing a warning if multiple configs are used (#​12510)
• [jest-config] [BREAKING] Do not normalize long deprecated configuration options preprocessorIgnorePatterns, scriptPreprocessor, setupTestFrameworkScriptFile and testPathDirs (#​12701)
• [jest-cli, jest-core] Add --ignoreProjects CLI argument to ignore test suites by project name (#​12620)
• [jest-core] Pass project config to globalSetup/globalTeardown function as second argument (#​12440)
• [jest-core] Stabilize test runners with event emitters (#​12641)
• [jest-core, jest-watcher] [BREAKING] Move TestWatcher class to jest-watcher package (#​12652)
• [jest-core] Allow using Summary Reporter as stand-alone reporter (#​12687)
• [jest-environment-jsdom] [BREAKING] Upgrade jsdom to 19.0.0 (#​12290)
• [jest-environment-jsdom] [BREAKING] Add default browser condition to exportConditions for jsdom environment (#​11924)
• [jest-environment-jsdom] [BREAKING] Pass global config to Jest environment constructor for jsdom environment (#​12461)
• [jest-environment-jsdom] [BREAKING] Second argument context to constructor is mandatory (#​12469)
• [jest-environment-node] [BREAKING] Add default node and node-addon conditions to exportConditions for node environment (#​11924)
• [jest-environment-node] [BREAKING] Pass global config to Jest environment constructor for node environment (#​12461)
• [jest-environment-node] [BREAKING] Second argument context to constructor is mandatory (#​12469)
• [jest-environment-node] Add all available globals to test globals, not just explicit ones (#​12642, #​12696)
• [@jest/expect] New module which extends expect with jest-snapshot matchers (#​12404, #​12410, #​12418)
• [@jest/expect-utils] New module exporting utils for expect (#​12323)
• [@jest/fake-timers] [BREAKING] Rename timers configuration option to fakeTimers (#​12572)
• [@jest/fake-timers] [BREAKING] Allow jest.useFakeTimers() and projectConfig.fakeTimers to take an options bag (#​12572)
• [jest-haste-map] [BREAKING] HasteMap.create now returns a promise (#​12008)
• [jest-haste-map] Add support for dependencyExtractor written in ESM (#​12008)
• [jest-mock] [BREAKING] Rename exported utility types ClassLike, FunctionLike, ConstructorLikeKeys, MethodLikeKeys, PropertyLikeKeys; remove exports of utility types ArgumentsOf, ArgsType, ConstructorArgumentsOf - TS builtin utility types ConstructorParameters and Parameters should be used instead (#​12435, #​12489)
• [jest-mock] Improve isMockFunction to infer types of passed function (#​12442)
• [jest-mock] [BREAKING] Improve the usage of jest.fn generic type argument (#​12489)
• [jest-mock] Add support for auto-mocking async generator functions (#​11080)
• [jest-mock] Add contexts member to mock functions (#​12601)
• [@jest/reporters] Add GitHub Actions reporter (#​11320, #​12658)
• [@jest/reporters] Pass reporterContext to custom reporter constructors as third argument (#​12657)
• [jest-resolve] [BREAKING] Add support for package.json exports (#​11961, #​12373)
• [jest-resolve] Support package self-reference (#​12682)
• [jest-resolve, jest-runtime] Add support for data: URI import and mock (#​12392)
• [jest-resolve, jest-runtime] Add support for async resolver (#​11540)
• [jest-resolve] [BREAKING] Remove browser?: boolean from resolver options, conditions: ['browser'] should be used instead (#​12707)
• [jest-resolve] Expose JestResolver, AsyncResolver, SyncResolver, PackageFilter, PathFilter and PackageJSON types (#​12707, (#​12712)
• [jest-runner] Allow setupFiles module to export an async function (#​12042)
• [jest-runner] Allow passing testEnvironmentOptions via docblocks (#​12470)
• [jest-runner] Expose CallbackTestRunner, EmittingTestRunner abstract classes and CallbackTestRunnerInterface, EmittingTestRunnerInterface to help typing third party runners (#​12646, #​12715)
• [jest-runner] Lock version of source-map-support to 0.5.13 (#​12720)
• [jest-runtime] [BREAKING] Runtime.createHasteMap now returns a promise (#​12008)
• [jest-runtime] Calling jest.resetModules function will clear FS and transform cache (#​12531)
• [jest-runtime] [BREAKING] Remove Context type export, it must be imported from @jest/test-result (#​12685)
• [jest-runtime] Add import.meta.jest (#​12698)
• [@jest/schemas] New module for JSON schemas for Jest's config (#​12384)
• [@jest/source-map] Migrate from source-map to @jridgewell/trace-mapping (#​12692)
• [jest-transform] [BREAKING] Make it required for process() and processAsync() methods to always return structured data (#​12638)
• [jest-test-result] Add duration property to JSON test output (#​12518)
• [jest-watcher] [BREAKING] Make PatternPrompt class to take entityName as third constructor parameter instead of this._entityName (#​12591)
• [jest-worker] [BREAKING] Allow only absolute workerPath (#​12343)
• [jest-worker] [BREAKING] Default to advanced serialization when using child process workers (#​10983)
• [pretty-format] New maxWidth parameter (#​12402)

Fixes

• [*] Use sha256 instead of md5 as hashing algorithm for compatibility with FIPS systems (#​12722)
• [babel-jest] [BREAKING] Pass rootDir as root in Babel's options (#​12689)
• [expect] Move typings of .not, .rejects and .resolves modifiers outside of Matchers interface (#​12346)
• [expect] Throw useful error if expect.extend is called with invalid matchers (#​12488)
• [expect] Fix iterableEquality ignores other properties (#​8359)
• [expect] Fix print for the closeTo matcher (#​12626)
• [jest-changed-files] Improve changedFilesWithAncestor pattern for Mercurial SCM (#​12322)
• [jest-circus, @​jest/types] Disallow undefined value in TestContext type (#​12507)
• [jest-config] Correctly detect CI environment and update snapshots accordingly (#​12378)
• [jest-config] Pass moduleTypes to ts-node to enforce CJS when transpiling (#​12397)
• [jest-config] [BREAKING] Add mjs and cjs to default moduleFileExtensions config (#​12578)
• [jest-config, jest-haste-map] Allow searching for tests in node_modules by exposing retainAllFiles (#​11084)
• [jest-core] [BREAKING] Exit with status 1 if no tests are found with --findRelatedTests flag (#​12487)
• [jest-core] Do not report unref-ed subprocesses as open handles (#​12705)
• [jest-each] %# is not replaced with index of the test case (#​12517)
• [jest-each] Fixes error message with incorrect count of missing arguments (#​12464)
• [jest-environment-jsdom] Make jsdom accessible to extending environments again (#​12232)
• [jest-environment-jsdom] Log JSDOM errors more cleanly (#​12386)
• [jest-environment-node] Add MessageChannel, MessageEvent to globals (#​12553)
• [jest-environment-node] Add structuredClone to globals (#​12631)
• [@jest/expect-utils] [BREAKING] Fix false positives when looking for undefined prop (#​8923)
• [jest-haste-map] Don't use partial results if file crawl errors (#​12420)
• [jest-haste-map] Make watchman existence check lazy+async (#​12675)
• [jest-jasmine2, jest-types] [BREAKING] Move all jasmine specific types from @jest/types to its own package (#​12125)
• [jest-jasmine2] Do not set duration to 0 for skipped tests (#​12518)
• [jest-matcher-utils] Pass maxWidth to pretty-format to avoid printing every element in arrays by default (#​12402)
• [jest-mock] Fix function overloads for spyOn to allow more correct type inference in complex object (#​12442)
• [jest-mock] Handle overridden Function.name property (#​12674)
• [@jest/reporters] Notifications generated by the --notify flag are no longer persistent in GNOME Shell. (#​11733)
• [@jest/reporters] Move missing icon file which is needed for NotifyReporter class. (#​12593)
• [@jest/reporters] Update v8-to-istanbul (#​12697)
• [jest-resolver] Call custom resolver with core node.js modules (#​12654)
• [jest-runner] Correctly resolve source-map-support (#​12706)
• [jest-worker] Fix Farm execution results memory leak (#​12497)

Chore & Maintenance

• [*] [BREAKING] Drop support for Node v10 and v15 and target first LTS 16.13.0 (#​12220)
• [*] [BREAKING] Drop support for [email protected], minimum version is now 4.3 (#​11142, #​12648)
• [*] Bundle all .d.ts files into a single index.d.ts per module (#​12345)
• [*] Use globalThis instead of global (#​12447)
• [babel-jest] [BREAKING] Only export createTransformer (#​12407)
• [docs] Add note about not mixing done() with Promises (#​11077)
• [docs, examples] Update React examples to match with the new React guidelines for code examples (#​12217)
• [docs] Add clarity for module factory hoisting limitations (#​12453)
• [docs] Add more information about how code transformers work (#​12407)
• [docs] Add upgrading guide (#​12633)
• [expect] [BREAKING] Remove support for importing build/utils (#​12323)
• [expect] [BREAKING] Migrate to ESM (#​12344)
• [expect] [BREAKING] Snapshot matcher types are moved to @jest/expect (#​12404)
• [jest-cli] Update yargs to v17 (#​12357)
• [jest-config] [BREAKING] Remove getTestEnvironment export (#​12353)
• [jest-config] [BREAKING] Rename config option name to id (#​11981)
• [jest-create-cache-key-function] Added README.md file with basic usage instructions (#​12492)
• [@jest/core] Use index.ts instead of jest.ts as main export (#​12329)
• [jest-environment-jsdom] [BREAKING] Migrate to ESM (#​12340)
• [jest-environment-node] [BREAKING] Migrate to ESM (#​12340)
• [jest-haste-map] Remove legacy isRegExpSupported (#​12676)
• [@jest/fake-timers] Update @sinonjs/fake_timers to v9 (#​12357)
• [jest-jasmine2, jest-runtime] [BREAKING] Use Symbol to pass jest.setTimeout value instead of jasmine specific logic (#​12124)
• [jest-phabricator] [BREAKING] Migrate to ESM (#​12341)
• [jest-resolve] [BREAKING] Make requireResolveFunction argument mandatory (#​12353)
• [jest-runner] [BREAKING] Remove some type exports from @jest/test-result (#​12353)
• [jest-runner] [BREAKING] Second argument to constructor (Context) is not optional (#​12640)
• [jest-serializer] [BREAKING] Deprecate package in favour of using v8 APIs directly (#​12391)
• [jest-snapshot] [BREAKING] Migrate to ESM (#​12342)
• [jest-transform] Update write-file-atomic to v4 (#​12357)
• [jest-types] [BREAKING] Remove Config.Glob and Config.Path (#​12406)
• [jest] Use index.ts instead of jest.ts as main export (#​12329)

Performance

• [jest-haste-map] [BREAKING] Default to node crawler over shelling out to find if watchman is not enabled (#​12320)

v27.5.1

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Features

• [jest-config] Support comments in JSON config file (#​12316)
• [pretty-format] Expose ConvertAnsi plugin (#​12308)

Fixes

• [expect] Add type definitions for asymmetric closeTo matcher (#​12304)
• [jest-cli] Load binary via exported API (#​12315)
• [jest-config] Replace jsonlint with parse-json (#​12316)
• [jest-repl] Make module importable (#​12311 & #​12315)

Chore & Maintenance

• [*] Avoid anonymous default exports (#​12313)

v27.5.0

Compare Source

Features

• [expect] Add asymmetric matcher expect.closeTo (#​12243)
• [jest-mock] Added mockFn.mock.lastCall to retrieve last argument (#​12285)

Fixes

• [expect] Add a fix for .toHaveProperty('') (#​12251)
• [jest-each, @​jest/globals] Allow passing ReadonlyArray type of a table to describe.each and test.each (#​12297)
• [@jest/globals] Add missing options argument to jest.doMock typing (#​12292)
• [jest-environment-node] Add atob and btoa (#​12269)
• [jest-matcher-utils] Correct diff for expected asymmetric matchers (#​12264)
• [jest-message-util] Fix .getTopFrame() (and toMatchInlineSnapshot()) with mjs files (#​12277)

Chore & Maintenance

• [*] Update graceful-fs to ^4.2.9 (#​11749)

Performance

• [jest-resolve] perf: skip error creation on not found stat calls (#​11749)

v27.4.6

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Fixes

• [jest-environment-node] Add AbortSignal (#​12157)
• [jest-environment-node] Add Missing node global performance (#​12002)
• [jest-runtime] Handle missing mocked property (#​12213)
• [@jest/transform] Update dependency package pirates to 4.0.4 (#​12002)

Performance

• jest-config perf: only register ts-node once when loading TS config files (#​12160)

v27.4.2

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Fixes

• [jest-worker] Add additional execArgv to filter (#​12103)

v27.4.1

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Fixes

• [jest-worker] Filter execArgv correctly (#​12097)

v27.4.0

Compare Source

Features

• [expect] Enhancing the toHaveProperty matcher to support array selection (#​12092)
• [jest-core] Add support for testResultsProcessor written in ESM (#​12006)
• [jest-diff, pretty-format] Add compareKeys option for custom sorting of object keys (#​11992)
• [jest-mock] Add ts-jest mock util functions (#​12089)

Fixes

• [expect] Allow again expect.Matchers generic with single value (#​11986)
• [jest-circus, jest-jasmine2] Avoid false concurrent test failures due to unhandled promise rejections (#​11987)
• [jest-config] Add missing slash dependency to package.json (#​12080)
• [jest-core] Incorrect detection of open ZLIB handles (#​12022)
• [jest-diff] Break dependency cycle (#​10818)
• [jest-environment-jsdom] Add @types/jsdom dependency (#​11999)
• [jest-environment-jsdom] Do not reset the global.document too early on teardown (#​11871)
• [jest-transform] Improve error and warning messages (#​11998)
• [jest-worker] Pass execArgv correctly to worker_threads worker (#​12069)

Chore & Maintenance

• [docs] CLI options alphabetized (#​11586)
• [jest-runner] Add info regarding timers to forcedExit message(#​12083)
• [*] Replaced substr method with substring (#​12066)
• [*] Add types entry to all export maps (#​12073)

v27.3.1

Compare Source

Fixes

• [expect] Make expect extension properties configurable (#​11978)
• [expect] Fix .any() checks on primitive wrapper classes (#​11976)

Chore & Maintenance

• [expect] BigInt global is always defined, don't check for its existence at runtime (#​11979)
• [jest-config, jest-util] Use ci-info instead of is-ci to detect CI environment (#​11973)

v27.3.0

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Features

• [jest-config] Add testEnvironmentOptions.html to apply to jsdom input (#​11950)
• [jest-resolver] Support default export (.) in exports field if main is missing (#​11919)

Fixes

• [expect] Tweak and improve types (#​11949)
• [jest-runtime] Ensure absolute paths can be resolved within test modules (#​11943)
• [jest-runtime] Fix instanceof for ModernFakeTimers and LegacyFakeTimers methods (#​11946)

v27.2.5

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Features

• [jest-config] Warn when multiple Jest configs are located (#​11922)

Fixes

• [expect] Pass matcher context to asymmetric matchers (#​11926 & #​11930)
• [expect] Improve TypeScript types (#​11931)
• [expect] Improve typings of toThrow() and toThrowError() matchers (#​11929)
• [jest-cli] Improve --help printout by removing defunct --browser option (#​11914)
• [jest-haste-map] Use distinct cache paths for different values of computeDependencies (#​11916)
• [@jest/reporters] Do not buffer console.logs when using verbose reporter (#​11054)

Chore & Maintenance

• [expect] Export default matchers (#​11932)
• [@jest/types] Mark deprecated configuration options as @deprecated (#​11913)

v27.2.4

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Features

• [expect] Add equality checks for Array Buffers in expect.ToStrictEqual() (#​11805)

Fixes

• [jest-snapshot] Correctly indent inline snapshots (#​11560)

v27.2.3

Compare Source

Features

• [@jest/fake-timers] Update @sinonjs/fake-timers to v8 (#​11879)

Fixes

• [jest-config] Parse testEnvironmentOptions if received from CLI (#​11902)
• [jest-reporters] Call destroy on v8-to-istanbul converters to free memory (#​11896)

v27.2.2

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Fixes

• [jest-runtime] Correct wrapperLength value for ESM modules. (#​11893)

v27.2.1

Compare Source

Features

• [jest-transform] Improve the unexpected token error message. (#​11807)

Fixes

• [jest-runtime] Fix regression when using jest.isolateModules and mocks (#​11882)
• [jest-runtime] Include test name when importing modules after test has completed (#​11885)
• [jest-runtime] Error when ESM import is used after test is torn down (#​11885)

v27.2.0

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Features

• [jest-resolver, jest-runtime] Pass conditions to custom resolvers to enable them to implement support for package.json exports field (#​11859)
• [jest-runtime] Allow custom envs to specify exportConditions which is passed together with Jest's own conditions to custom resolvers (#​11863)

Fixes

• [@jest/reporters] Use async transform if available to transform files with no coverage (#​11852)
• [jest-util] Return correct value from process.send stub (#​11799)

v27.1.1

Compare Source

Features

• [jest-runtime] Add experimental, limited (and undocumented) support for mocking ECMAScript Modules (#​11818)

Fixes

• [jest-resolver] Support node: prefix when importing Node core modules with ESM (#​11817)
• [jest-types] Export the PrettyFormatOptions interface (#​11801)

v27.1.0

Compare Source

Features

• [jest-haste-map] Use watchman suffix-set option for faster file indexing. (#​11784)
• [jest-cli] Adds a new config options snapshotFormat which offers a way to override any of the formatting settings which come with pretty-format. (#​11654)
• [jest-reporters] Expose the getSummary util (#​11695).
• [jest-resolver] Support node: prefix when importing Node core modules (#​11331)

Fixes

• [jest-each] Relaxed the validation to allow multibyte characters in headings (#​11575)
• [jest-environment-jsdom] Add support for userAgent option (#​11773)
• [jest-environment-node] Add Event and EventTarget to node global environment. (#​11727)
• [jest-mock] Fix spyOn to use Object.prototype.hasOwnProperty (#​11721)
• [jest-resolver] Add dependency on jest-haste-map (#​11759)
• [jest-types] Compat with @types/node v16 (#​11645)

Chore & Maintenance

• [docs] Correct expects.assertions documentation by adding async/await for asynchronous function.

v27.0.6

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Fixes

• [*] Publish all modules to include the build change in (#​11569)

v27.0.2

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Features

• [jest-circus] Add some APIs to make it easier to build your own test runner
• [jest-reporters] Expose the getResultHeader util (#​11460)
• [jest-resolver] Export resolve* utils for different Jest modules (#​11466)
• [@jest/test-result] Export Test, TestEvents and TestFileEvent (#​11466)

Fixes

• [jest-circus] Add missing slash dependency (#​11465)
• [jest-circus, @​jest/test-sequencer] Remove dependency on jest-runner (#​11466)
• [jest-config] Resolve config.runner to absolute path (#​11465)
• [jest-config] Make sure to support functions as config (#​11475)
• [jest-core] Do not warn about DNSCHANNEL handles when using the --detectOpenHandles option (#​11470)
• [jest-runner] Remove dependency on jest-config (#​11466)
• [jest-worker] Loosen engine requirement to >= 10.13.0 (#​11451)

v27.0.1

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Fixes

• [jest-environment-jsdom] Bump version of JSDOM to avoid deprecated request package (#​11442)

v27.0.0

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Features

• [babel-jest] Add async transformation (#​11192)
• [jest-changed-files] Use '--' to separate paths from revisions (#​11160)
• [jest-circus] [BREAKING] Fail tests when multiple done() calls are made (#​10624)
• [jest-circus, jest-jasmine2] [BREAKING] Fail the test instead of just warning when describe returns a value (#​10947)
• [jest-config] [BREAKING] Default to Node testing environment instead of browser (JSDOM) (#​9874)
• [jest-config] [BREAKING] Use jest-circus as default test runner (#​10686)
• [jest-config] Add support for preset written in ESM (#​11200)
• [jest-config, jest-runtime] Support ESM for files other than .js and .mjs (#​10823)
• [jest-config, jest-runtime] [BREAKING] Use "modern" implementation as default for fake timers (#​10874 & #​11197)
• [jest-config Allow passing forceNodeFilesystemAPI through to jest-haste-map (#​11264)
• [jest-config, jest-haste-map, jest-resolve, jest-runner, jest-runtime, jest-test-sequencer, jest-transform, jest-types] [BREAKING] Add custom HasteMap class implementation config option (#​11107)
• [jest-core] make TestWatcher extend emittery (#​10324)
• [jest-core] Run failed tests interactively the same way we do with snapshots (#​10858)
• [jest-core] more TestSequencer methods can be async (#​10980)
• [jest-core] Add support for testSequencer written in ESM (#​11207)
• [jest-core] Add support for globalSetup and globalTeardown written in ESM (#​11267)
• [jest-core] Add support for watchPlugins written in ESM (#​11315)
• [jest-core] Add support for runner written in ESM (#​11232)
• [jest-core] Add support for reporters written in ESM (#​11427)
• [jest-each] Add support for interpolation with object properties (#​11388)
• [jest-environment-node] Add AbortController to globals (#​11182)
• [@jest/fake-timers] Update to @sinonjs/fake-timers to v7 (#​11198)
• [jest-haste-map] Handle injected scm clocks (#​10966)
• [jest-haste-map] Add enableSymlinks configuration option to follow symlinks for test files (#​9351)
• [jest-repl, jest-runner] [BREAKING] Run transforms over environment (#​8751)
• [jest-repl] Add support for testEnvironment written in ESM (#​11232)
• [jest-reporters] Add static filepath property to all reporters (#​11015)
• [jest-runner] [BREAKING] set exit code to 1 if test logs after teardown (#​10728)
• [jest-runner] [BREAKING] Run transforms over runner (#​8823)
• [jest-runner] [BREAKING] Run transforms over testRunner (#​8823)
• [jest-runner] Possibility to use ESM for test environment (11033)
• [jest-runner] Add support for testRunner written in ESM (#​11232)
• [jest-runtime] Detect reexports from CJS as named exports in ESM (#​10988)
• [jest-runtime] Support for async code transformations (#​11191 & #​11220)
• [jest-snapshot] [BREAKING] Make prettier optional for inline snapshots - fall back to string replacement (#​7792 & #​11192)
• [jest-snapshot] [BREAKING] Run transforms over snapshotResolver (#​8829)
• [jest-transform] Pass config options defined in Jest's config to transformer's process and getCacheKey functions (#​10926)
• [jest-transform] Add support for transformers written in ESM (#​11163)
• [jest-transform] [BREAKING] Do not export ScriptTransformer class, instead export the async function createScriptTransformer (#​11163)
• [jest-transform] Async code transformations (#​9889)
• [jest-transform] Support transpiled transformers (#​11193)
• [jest-transform] [BREAKING] requireAndTranspileModule always return a Promise, and the third parameter type is changed to RequireAndTranspileModuleOptions which accept applyInteropRequireDefault option (#​11232)
• [jest-transform] [BREAKING] createTranspilingRequire return function which return a Promise now (#​11232)
• [jest-util] add requireOrImportModule for importing CJS or ESM (#​11199)
• [jest-util] add applyInteropRequireDefault option on requireOrImportModule (#​11232)
• [jest-watcher] Added support for clearing the line when <C-u> is pressed in a watch mode pattern prompt (#​11358)
• [jest-worker] Add support for custom task queues and adds a PriorityQueue implementation. (#​10921)
• [jest-worker] Add in-order scheduling policy to jest worker (10902)
• [pretty-format] Better print for sparse arrays (11326)
• [pretty-print] Add option printBasicPrototype which determines whether or not the prototype should be printed for raw objects or arrays (#​11441)

Fixes

• [babel-plugin-jest-hoist] Add __dirname and __filename to whitelisted globals (#​10903)
• [expect] [BREAKING] Revise expect.not.objectContaining() to be the inverse of expect.objectContaining(), as documented. (#​10708)
• [expect] [BREAKING] Make toContain more strict with the received type (#​10119 & #​10929)
• [expect] [BREAKING] matcherResult on JestAssertionError are now strings rather than functions (#​10989)
• [jest-circus] Fixed the issue of beforeAll & afterAll hooks getting executed even if it is inside a skipped describe block (#​10806)
• [jest-circus] Fix testLocation on Windows when using test.each (#​10871)
• [jest-cli] Use testFailureExitCode when bailing from a failed test (#​10958)
• [jest-cli] Print custom error if error thrown from global hooks is not an error already (#​11003)
• [jest-cli] Allow running multiple "projects" from programmatic API (#​11307)
• [jest-cli] Fix missing collectCoverage after init (#​11353)
• [jest-cli, jest-config, jest-types] Move all default values into jest-config (#​9924)
• [jest-config] [BREAKING] Change default file extension order by moving json behind ts and tsx (10572)
• [jest-console] console.dir now respects the second argument correctly (#​10638)
• [jest-core] Don't report PerformanceObserver as open handle (#​11123)
• [jest-core] Use WeakRef to hold timers when detecting open handles (#​11277)
• [jest-core] Correctly detect open handles that were created in test functions using done callbacks (#​11382)
• [jest-core] Do not collect RANDOMBYTESREQUEST as open handles (#​11278)
• [jest-core] Wait briefly for open handles to close before flagging them when using --detectOpenHandles (#​11429)
• [jest-diff] [BREAKING] Use only named exports (#​11371)
• [jest-each] [BREAKING] Ignore excess words in headings (#​8766)
• [jest-each] Support array index with template strings (#​10763)
• [jest-each] Interpolate %% correctly (#​11364)
• [jest-each] Fix wrong interpolation when the value of array contains multiple % (#​11364)
• [jest-environment] [BREAKING] Drop support for runScript for test environments (#​11155)
• [jest-environment-jsdom] Use inner realm’s ArrayBuffer constructor (#​10885)
• [jest-environment-jsdom] [BREAKING] Remove Node globals setImmediate and clearImmediate (#​11222)
• [jest-get-type] [BREAKING] Convert to ES Module (#​11359)
• [jest-globals] [BREAKING] Disallow return values other than a Promise from hooks and tests (#​10512)
• [jest-globals] [BREAKING] Disallow mixing a done callback and returning a Promise from hooks and tests (#​10512)
• [jest-haste-map] Vendor NodeWatcher from sane (#​10919)
• [jest-jasmine2] Fixed the issue of beforeAll & afterAll hooks getting executed even if it is inside a skipped describe block when it has child tests marked as either only or todo (#​10806)
• [jest-jasmine2] Fixed the issues of child tests marked with only or todo getting executed even if it is inside a skipped parent describe block (#​10806)
• [jest-jasmine2] Wrap all test functions so they open handles that were created in test functions using done callbacks can be detected (#​11382)
• [jest-reporter] Handle empty files when reporting code coverage with V8 (#​10819)
• [jest-resolve] Replace read-pkg-up with escalade package (#​10781)
• [jest-resolve] Disable jest-pnp-resolver for Yarn 2 (#​10847)
• [jest-runtime] [BREAKING] Do not inject global variable into module wrapper (#​10644)
• [jest-runtime] [BREAKING]