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CHANGELOG.md
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CHANGELOG.md
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## main
### Features
- `[expect, @jest/expect-utils]` Support custom equality testers ([#13654](https://github.com/facebook/jest/pull/13654))
- `[jest-haste-map]` ignore Sapling vcs directories (`.sl/`) ([#13674](https://github.com/facebook/jest/pull/13674))
- `[jest-resolve]` Support subpath imports ([#13705](https://github.com/facebook/jest/pull/13705))
- `[jest-runtime]` Add `jest.isolateModulesAsync` for scoped module initialization of asynchronous functions ([#13680](https://github.com/facebook/jest/pull/13680))
- `[jest-test-result]` Added `skipped` and `focused` status to `FormattedTestResult` ([#13700](https://github.com/facebook/jest/pull/13700))
### Fixes
- `[jest-environment-node]` fix non-configurable globals ([#13687](https://github.com/facebook/jest/pull/13687))
- `[@jest/expect-utils]` `toMatchObject` should handle `Symbol` properties ([#13639](https://github.com/facebook/jest/pull/13639))
- `[jest-resolve]` Add global paths to `require.resolve.paths` ([#13633](https://github.com/facebook/jest/pull/13633))
- `[jest-runtime]` Support Wasm files that import JS resources ([#13608](https://github.com/facebook/jest/pull/13608))
- `[jest-snapshot]` Make sure to import `babel` outside of the sandbox ([#13694](https://github.com/facebook/jest/pull/13694))
### Chore & Maintenance
- `[@jest/fake-timers]` Update `@sinonjs/fake-timers` ([#13612](https://github.com/facebook/jest/pull/13612))
- `[docs]` Improve custom puppeteer example to prevent worker warnings ([#13619](https://github.com/facebook/jest/pull/13619))
### Performance
## 29.3.1
### Fixes
- `[jest-config]` Do not warn about `preset` in `ProjectConfig` ([#13583](https://github.com/facebook/jest/pull/13583))
### Performance
- `[jest-transform]` Defer creation of cache directory ([#13420](https://github.com/facebook/jest/pull/13420))
## 29.3.0
### Features
- `[jest-runtime]` Support WebAssembly (Wasm) imports in ESM modules ([#13505](https://github.com/facebook/jest/pull/13505))
### Fixes
- `[jest-config]` Add config validation for `projects` option ([#13565](https://github.com/facebook/jest/pull/13565))
- `[jest-mock]` Treat cjs modules as objects so they can be mocked ([#13513](https://github.com/facebook/jest/pull/13513))
- `[jest-worker]` Throw an error instead of hanging when jest workers terminate unexpectedly ([#13566](https://github.com/facebook/jest/pull/13566))
### Chore & Maintenance
- `[@jest/transform]` Update `convert-source-map` ([#13509](https://github.com/facebook/jest/pull/13509))
- `[docs]` Mention `toStrictEqual` in UsingMatchers docs. ([#13560](https://github.com/facebook/jest/pull/13560))
## 29.2.2
### Fixes
- `[@jest/test-sequencer]` Make sure sharding does not produce empty groups ([#13476](https://github.com/facebook/jest/pull/13476))
- `[jest-circus]` Test marked as `todo` are shown as todo when inside a focussed describe ([#13504](https://github.com/facebook/jest/pull/13504))
- `[jest-mock]` Ensure mock resolved and rejected values are promises from correct realm ([#13503](https://github.com/facebook/jest/pull/13503))
- `[jest-snapshot]` Don't highlight passing asymmetric property matchers in snapshot diff ([#13480](https://github.com/facebook/jest/issues/13480))
### Chore & Maintenance
- `[docs]` Update link to Jest 28 upgrade guide in error message ([#13483](https://github.com/facebook/jest/pull/13483))
- `[jest-runner, jest-watcher]` Update `emittery` ([#13490](https://github.com/facebook/jest/pull/13490))
## 29.2.1
### Features
- `[@jest/globals, jest-mock]` Add `jest.Spied*` utility types ([#13440](https://github.com/facebook/jest/pull/13440))
### Fixes
- `[jest-environment-node]` make `globalThis.performance` writable for Node 19 and fake timers ([#13467](https://github.com/facebook/jest/pull/13467))
- `[jest-mock]` Revert [#13398](https://github.com/facebook/jest/pull/13398) to restore mocking of setters ([#13472](https://github.com/facebook/jest/pull/13472))
### Performance
- `[*]` Use sha1 instead of sha256 for hashing ([#13421](https://github.com/facebook/jest/pull/13421))
## 29.2.0
### Features
- `[@jest/cli, jest-config]` A seed for the test run will be randomly generated, or set by a CLI option ([#13400](https://github.com/facebook/jest/pull/13400))
- `[@jest/cli, jest-config]` `--show-seed` will display the seed value in the report, and can be set via a CLI flag or through the config file ([#13400](https://github.com/facebook/jest/pull/13400))
- `[jest-config]` Add `readInitialConfig` utility function ([#13356](https://github.com/facebook/jest/pull/13356))
- `[jest-core]` Allow `testResultsProcessor` to be async ([#13343](https://github.com/facebook/jest/pull/13343))
- `[@jest/environment, jest-environment-node, jest-environment-jsdom, jest-runtime]` Add `getSeed()` to the `jest` object ([#13400](https://github.com/facebook/jest/pull/13400))
- `[expect, @jest/expect-utils]` Allow `isA` utility to take a type argument ([#13355](https://github.com/facebook/jest/pull/13355))
- `[expect]` Expose `AsyncExpectationResult` and `SyncExpectationResult` types ([#13411](https://github.com/facebook/jest/pull/13411))
### Fixes
- `[babel-plugin-jest-hoist]` Ignore `TSTypeQuery` when checking for hoisted references ([#13367](https://github.com/facebook/jest/pull/13367))
- `[jest-core]` Fix `detectOpenHandles` false positives for some special objects such as `TLSWRAP` ([#13414](https://github.com/facebook/jest/pull/13414))
- `[jest-mock]` Fix mocking of getters and setters on classes ([#13398](https://github.com/facebook/jest/pull/13398))
- `[jest-reporters]` Revert: Transform file paths into hyperlinks ([#13399](https://github.com/facebook/jest/pull/13399))
- `[@jest/types]` Infer type of `each` table correctly when the table is a tuple or array ([#13381](https://github.com/facebook/jest/pull/13381))
- `[@jest/types]` Rework typings to allow the `*ReturnedWith` matchers to be called with no argument ([#13385](https://github.com/facebook/jest/pull/13385))
### Chore & Maintenance
- `[*]` Update `@babel/*` deps, resulting in slightly different stack traces for `each` ([#13422](https://github.com/facebook/jest/pull/13422))
### Performance
- `[jest-runner]` Do not instrument v8 coverage data if coverage should not be collected ([#13282](https://github.com/facebook/jest/pull/13282))
## 29.1.2
### Fixes
- `[expect, @jest/expect]` Revert buggy inference of argument types for `*CalledWith` and `*ReturnedWith` matchers introduced in 29.1.0 ([#13339](https://github.com/facebook/jest/pull/13339))
- `[jest-worker]` Add missing dependency on `jest-util` ([#13341](https://github.com/facebook/jest/pull/13341))
## 29.1.1
### Fixes
- `[jest-mock]` Revert [#13145](https://github.com/facebook/jest/pull/13145) which broke mocking of transpiled ES modules
## 29.1.0
### Features
- `[expect, @jest/expect]` Support type inference for function parameters in `CalledWith` assertions ([#13268](https://github.com/facebook/jest/pull/13268))
- `[expect, @jest/expect]` Infer type of `*ReturnedWith` matchers argument ([#13278](https://github.com/facebook/jest/pull/13278))
- `[@jest/environment, jest-runtime]` Allow `jest.requireActual` and `jest.requireMock` to take a type argument ([#13253](https://github.com/facebook/jest/pull/13253))
- `[@jest/environment]` Allow `jest.mock` and `jest.doMock` to take a type argument ([#13254](https://github.com/facebook/jest/pull/13254))
- `[@jest/fake-timers]` Add `jest.now()` to return the current fake clock time ([#13244](https://github.com/facebook/jest/pull/13244), [#13246](https://github.com/facebook/jest/pull/13246))
- `[@jest/mock]` Add `withImplementation` method for temporarily overriding a mock ([#13281](https://github.com/facebook/jest/pull/13281))
- `[expect]` Export `toThrow*` matchers ([#13328](https://github.com/facebook/jest/pull/13328))
### Fixes
- `[jest-circus, jest-jasmine2]` Fix error messages for Node's `assert.throes` ([#13322](https://github.com/facebook/jest/pull/13322))
- `[jest-haste-map]` Remove `__proto__` usage ([#13256](https://github.com/facebook/jest/pull/13256))
- `[jest-mock]` Improve `spyOn` typings to handle optional properties ([#13247](https://github.com/facebook/jest/pull/13247))
- `[jest-mock]` Fix mocking of getters and setters on classes ([#13145](https://github.com/facebook/jest/pull/13145))
- `[jest-snapshot]` Throw useful error when an array is passed as property matchers ([#13263](https://github.com/facebook/jest/pull/13263))
- `[jest-snapshot]` Prioritize parser used in the project ([#13323](https://github.com/facebook/jest/pull/13323))
- `[jest-transform]` Attempt to work around issues with atomic writes on Windows ([#11423](https://github.com/facebook/jest/pull/11423))
## 29.0.3
### Features
- `[@jest/environment, jest-runtime]` Allow passing a generic type argument to `jest.createMockFromModule<T>()` method ([#13202](https://github.com/facebook/jest/pull/13202))
- `[expect]` Expose `ExpectationResult` type ([#13240](https://github.com/facebook/jest/pull/13240))
- `[jest-snapshot]` Expose `Context` type ([#13240](https://github.com/facebook/jest/pull/13240))
- `[@jest/globals]` Add `jest.Mock` type helper ([#13235](https://github.com/facebook/jest/pull/13235))
### Fixes
- `[jest-core]` Capture `execError` during `TestScheduler.scheduleTests` and dispatch to reporters ([#13203](https://github.com/facebook/jest/pull/13203))
- `[jest-resolve]` Make sure to resolve module paths after looking at `exports` ([#13242](https://github.com/facebook/jest/pull/13242))
- `[jest-resolve]` Improve error on module not found deep in the `require` stack ([#8704](https://github.com/facebook/jest/pull/8704))
- `[jest-snapshot]` Fix typings of snapshot matchers ([#13240](https://github.com/facebook/jest/pull/13240))
### Chore & Maintenance
- `[*]` Fix inconsistent workspace prefixes ([#13217](https://github.com/facebook/jest/pull/13217))
- `[jest-haste-map]` Expose a minimal public API to TypeScript ([#13023](https://github.com/facebook/jest/pull/13023))
## 29.0.2
### Features
- `[jest-transform]` Expose `TransformFactory` type ([#13184](https://github.com/facebook/jest/pull/13184))
### Fixes
- `[babel-plugin-jest-hoist]` Support imported `jest` in mock factory ([#13188](https://github.com/facebook/jest/pull/13188))
- `[jest-mock]` Align the behavior and return type of `generateFromMetadata` method ([#13207](https://github.com/facebook/jest/pull/13207))
- `[jest-runtime]` Support `jest.resetModules()` with ESM ([#13211](https://github.com/facebook/jest/pull/13211))
## 29.0.1
### Fixes
- `[jest-snapshot]` Pass `snapshotFormat` through when diffing snapshots ([#13181](https://github.com/facebook/jest/pull/13181))
## 29.0.0
### Features
- `[expect]` [**BREAKING**] Differentiate between `MatcherContext` `MatcherUtils` and `MatcherState` types ([#13141](https://github.com/facebook/jest/pull/13141))
- `[jest-circus]` Add support for `test.failing.each` ([#13142](https://github.com/facebook/jest/pull/13142))
- `[jest-config]` [**BREAKING**] Make `snapshotFormat` default to `escapeString: false` and `printBasicPrototype: false` ([#13036](https://github.com/facebook/jest/pull/13036))
- `[jest-config]` [**BREAKING**] Remove undocumented `collectCoverageOnlyFrom` option ([#13156](https://github.com/facebook/jest/pull/13156))
- `[jest-environment-jsdom]` [**BREAKING**] Upgrade to `jsdom@20` ([#13037](https://github.com/facebook/jest/pull/13037), [#13058](https://github.com/facebook/jest/pull/13058))
- `[@jest/globals]` Add `jest.Mocked`, `jest.MockedClass`, `jest.MockedFunction` and `jest.MockedObject` utility types ([#12727](https://github.com/facebook/jest/pull/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](https://github.com/facebook/jest/pull/13123), [#13124](https://github.com/facebook/jest/pull/13124))
- `[jest-mock]` [**BREAKING**] Change the default `jest.mocked` helper’s behavior to deep mocked ([#13125](https://github.com/facebook/jest/pull/13125))
- `[jest-snapshot]` [**BREAKING**] Let `babel` find config when updating inline snapshots ([#13150](https://github.com/facebook/jest/pull/13150))
- `[@jest/test-result, @jest/types]` [**BREAKING**] Replace `Bytes` and `Milliseconds` types with `number` ([#13155](https://github.com/facebook/jest/pull/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](https://github.com/facebook/jest/pull/13056), [#13105](https://github.com/facebook/jest/pull/13105), [#13106](https://github.com/facebook/jest/pull/13106), [#13107](https://github.com/facebook/jest/pull/13107))
- `[pretty-format]` [**BREAKING**] Remove `ConvertAnsi` plugin in favour of `jest-serializer-ansi-escapes` ([#13040](https://github.com/facebook/jest/pull/13040))
- `[pretty-format]` Allow to opt out from sorting object keys with `compareKeys: null` ([#12443](https://github.com/facebook/jest/pull/12443))
### Fixes
- `[jest-config]` Fix testing multiple projects with TypeScript config files ([#13099](https://github.com/facebook/jest/pull/13099))
- `[@jest/expect-utils]` Fix deep equality of ImmutableJS Record ([#13055](https://github.com/facebook/jest/pull/13055))
- `[jest-haste-map]` Increase the maximum possible file size that jest-haste-map can handle ([#13094](https://github.com/facebook/jest/pull/13094))
- `[jest-runtime]` Properly support CJS re-exports from dual packages ([#13170](https://github.com/facebook/jest/pull/13170))
- `[jest-snapshot]` Make `prettierPath` optional in `SnapshotState` ([#13149](https://github.com/facebook/jest/pull/13149))
- `[jest-snapshot]` Fix parsing error from inline snapshot files with `JSX` ([#12760](https://github.com/facebook/jest/pull/12760))
- `[jest-worker]` When a process runs out of memory worker exits correctly and doesn't spin indefinitely ([#13054](https://github.com/facebook/jest/pull/13054))
### Chore & Maintenance
- `[*]` [**BREAKING**] Drop support for Node v12 and v17 ([#13033](https://github.com/facebook/jest/pull/13033))
- `[docs]` Fix webpack name ([#13049](https://github.com/facebook/jest/pull/13049))
- `[docs]` Explicit how to set `n` for `--bail` ([#13128](https://github.com/facebook/jest/pull/13128))
- `[docs]` Update Enzyme URL ([#13166](https://github.com/facebook/jest/pull/13166))
- `[jest-leak-detector]` Remove support for `weak-napi` ([#13035](https://github.com/facebook/jest/pull/13035))
- `[jest-snapshot]` [**BREAKING**] Require `rootDir` as argument to `SnapshotState` ([#13150](https://github.com/facebook/jest/pull/13150))
## 28.1.3
### Features
- `[jest-leak-detector]` Use native `FinalizationRegistry` when it exists to get rid of external C dependency ([#12973](https://github.com/facebook/jest/pull/12973))
### Fixes
- `[jest-changed-files]` Fix a lock-up after repeated invocations ([#12757](https://github.com/facebook/jest/issues/12757))
- `[@jest/expect-utils]` Fix deep equality of ImmutableJS OrderedSets ([#12977](https://github.com/facebook/jest/pull/12977))
- `[jest-mock]` Add index signature support for `spyOn` types ([#13013](https://github.com/facebook/jest/pull/13013), [#13020](https://github.com/facebook/jest/pull/13020))
- `[jest-snapshot]` Fix indentation of awaited inline snapshots ([#12986](https://github.com/facebook/jest/pull/12986))
### Chore & Maintenance
- `[*]` Replace internal usage of `pretty-format/ConvertAnsi` with `jest-serializer-ansi-escapes` ([#12935](https://github.com/facebook/jest/pull/12935), [#13004](https://github.com/facebook/jest/pull/13004))
- `[docs]` Update spyOn docs ([#13000](https://github.com/facebook/jest/pull/13000))
## 28.1.2
### Fixes
- `[jest-runtime]` Avoid star type import from `@jest/globals` ([#12949](https://github.com/facebook/jest/pull/12949))
### Chore & Maintenance
- `[docs]` Mention that jest-codemods now supports Sinon ([#12898](https://github.com/facebook/jest/pull/12898))
## 28.1.1
### Features
- `[jest]` Expose `Config` type ([#12848](https://github.com/facebook/jest/pull/12848))
- `[@jest/reporters]` Improve `GitHubActionsReporter`s annotation format ([#12826](https://github.com/facebook/jest/pull/12826))
- `[@jest/types]` Infer argument types passed to `test` and `describe` callback functions from `each` tables ([#12885](https://github.com/facebook/jest/pull/12885), [#12905](https://github.com/facebook/jest/pull/12905))
### Fixes
- `[@jest/expect-utils]` Fix deep equality of ImmutableJS OrderedMaps ([#12763](https://github.com/facebook/jest/pull/12899))
- `[jest-docblock]` Handle multiline comments in parseWithComments ([#12845](https://github.com/facebook/jest/pull/12845))
- `[jest-mock]` Improve `spyOn` error messages ([#12901](https://github.com/facebook/jest/pull/12901))
- `[jest-runtime]` Correctly report V8 coverage with `resetModules: true` ([#12912](https://github.com/facebook/jest/pull/12912))
- `[jest-worker]` Make `JestWorkerFarm` helper type to include methods of worker module that take more than one argument ([#12839](https://github.com/facebook/jest/pull/12839))
### Chore & Maintenance
- `[docs]` Updated docs to indicate that `jest-environment-jsdom` is a separate package [#12828](https://github.com/facebook/jest/issues/12828)
- `[docs]` Document the comments used by coverage providers [#12835](https://github.com/facebook/jest/issues/12835)
- `[docs]` Use `docusaurus-remark-plugin-tab-blocks` to format tabs with code examples ([#12859](https://github.com/facebook/jest/pull/12859))
- `[jest-haste-map]` Bump `walker` version ([#12324](https://github.com/facebook/jest/pull/12324))
## 28.1.0
### Features
- `[jest-circus]` Add `failing` test modifier that inverts the behavior of tests ([#12610](https://github.com/facebook/jest/pull/12610))
- `[jest-environment-node, jest-environment-jsdom]` Allow specifying `customExportConditions` ([#12774](https://github.com/facebook/jest/pull/12774))
### Fixes
- `[expect]` Adjust typings of `lastCalledWith`, `nthCalledWith`, `toBeCalledWith` matchers to allow a case there a mock was called with no arguments ([#12807](https://github.com/facebook/jest/pull/12807))
- `[@jest/expect-utils]` Fix deep equality of ImmutableJS Lists ([#12763](https://github.com/facebook/jest/pull/12763))
- `[jest-core]` Do not collect `SIGNREQUEST` as open handles ([#12789](https://github.com/facebook/jest/pull/12789))
### Chore & Maintenance
- `[docs]` Specified documentation about `--filter` CLI docs ([#12799](https://github.com/facebook/jest/pull/12799))
- `[@jest-reporters]` Move helper functions from `utils.ts` into separate files ([#12782](https://github.com/facebook/jest/pull/12782))
- `[jest-resolve]` Replace `process.versions.pnp` type declaration with `@types/pnpapi` devDependency ([#12783](https://github.com/facebook/jest/pull/12783))
## 28.0.3
### Fixes
- `[jest-config]` Normalize `reporters` option defined in presets ([#12769](https://github.com/facebook/jest/pull/12769))
- `[@jest/reporters]` Fix trailing slash in matching `coverageThreshold` key ([#12714](https://github.com/facebook/jest/pull/12714))
- `[jest-resolve]` Fix (experimental) ESM module mocking for re-exports ([#12766](https://github.com/facebook/jest/pull/12766))
- `[@jest/transform]` Throw better error if an invalid return value if encountered ([#12764](https://github.com/facebook/jest/pull/12764))
### Chore & Maintenance
- `[docs]` Fix typo in `--shard` CLI docs ([#12761](https://github.com/facebook/jest/pull/12761))
## 28.0.2
### Features
- `[jest-worker]` Add `JestWorkerFarm` helper type ([#12753](https://github.com/facebook/jest/pull/12753))
### Fixes
- `[*]` Lower Node 16 requirement to 16.10 from 16.13 due to a [Node bug](https://github.com/nodejs/node/issues/40014) that causes memory and performance issues ([#12754](https://github.com/facebook/jest/pull/12754))
## 28.0.1
### Features
- `[jest-resolve]` Expose `ResolverOptions` type ([#12736](https://github.com/facebook/jest/pull/12736))
### Fixes
- `[expect]` Add missing dependency `jest-util` ([#12744](https://github.com/facebook/jest/pull/12744))
- `[jest-circus]` Improve `test.concurrent` ([#12748](https://github.com/facebook/jest/pull/12748))
- `[jest-resolve]` Correctly throw an error if `jsdom` test environment is used, but not installed ([#12749](https://github.com/facebook/jest/pull/12749))
### Chore & Maintenance
- `[jest-serializer]` Remove deprecated module from source tree ([#12735](https://github.com/facebook/jest/pull/12735))
## 28.0.0
### Features
- `[babel-jest]` Export `createTransformer` function ([#12399](https://github.com/facebook/jest/pull/12399))
- `[expect]` Expose `AsymmetricMatchers`, `MatcherFunction` and `MatcherFunctionWithState` interfaces ([#12363](https://github.com/facebook/jest/pull/12363), [#12376](https://github.com/facebook/jest/pull/12376))
- `[jest-circus]` Support error logging before retry ([#12201](https://github.com/facebook/jest/pull/12201))
- `[jest-circus, jest-jasmine2]` Allowed classes and functions as `describe` and `it`/`test` names ([#12484](https://github.com/facebook/jest/pull/12484))
- `[jest-cli, jest-config]` [**BREAKING**] Remove `testURL` config, use `testEnvironmentOptions.url` instead ([#10797](https://github.com/facebook/jest/pull/10797))
- `[jest-cli, jest-core]` Add `--shard` parameter for distributed parallel test execution ([#12546](https://github.com/facebook/jest/pull/12546))
- `[jest-cli]` [**BREAKING**] Remove undocumented `--timers` option ([#12572](https://github.com/facebook/jest/pull/12572))
- `[jest-config]` [**BREAKING**] Stop shipping `jest-environment-jsdom` by default ([#12354](https://github.com/facebook/jest/pull/12354))
- `[jest-config]` [**BREAKING**] Stop shipping `jest-jasmine2` by default ([#12355](https://github.com/facebook/jest/pull/12355))
- `[jest-config, @jest/types]` Add `ci` to `GlobalConfig` ([#12378](https://github.com/facebook/jest/pull/12378))
- `[jest-config]` [**BREAKING**] Rename `moduleLoader` to `runtime` ([#10817](https://github.com/facebook/jest/pull/10817))
- `[jest-config]` [**BREAKING**] Rename `extraGlobals` to `sandboxInjectedGlobals` ([#10817](https://github.com/facebook/jest/pull/10817))
- `[jest-config]` [**BREAKING**] Throw an error instead of showing a warning if multiple configs are used ([#12510](https://github.com/facebook/jest/pull/12510))
- `[jest-config]` [**BREAKING**] Do not normalize long deprecated configuration options `preprocessorIgnorePatterns`, `scriptPreprocessor`, `setupTestFrameworkScriptFile` and `testPathDirs` ([#12701](https://github.com/facebook/jest/pull/12701))
- `[jest-cli, jest-core]` Add `--ignoreProjects` CLI argument to ignore test suites by project name ([#12620](https://github.com/facebook/jest/pull/12620))
- `[jest-core]` Pass project config to `globalSetup`/`globalTeardown` function as second argument ([#12440](https://github.com/facebook/jest/pull/12440))
- `[jest-core]` Stabilize test runners with event emitters ([#12641](https://github.com/facebook/jest/pull/12641))
- `[jest-core, jest-watcher]` [**BREAKING**] Move `TestWatcher` class to `jest-watcher` package ([#12652](https://github.com/facebook/jest/pull/12652))
- `[jest-core]` Allow using Summary Reporter as stand-alone reporter ([#12687](https://github.com/facebook/jest/pull/12687))
- `[jest-environment-jsdom]` [**BREAKING**] Upgrade jsdom to 19.0.0 ([#12290](https://github.com/facebook/jest/pull/12290))
- `[jest-environment-jsdom]` [**BREAKING**] Add default `browser` condition to `exportConditions` for `jsdom` environment ([#11924](https://github.com/facebook/jest/pull/11924))
- `[jest-environment-jsdom]` [**BREAKING**] Pass global config to Jest environment constructor for `jsdom` environment ([#12461](https://github.com/facebook/jest/pull/12461))
- `[jest-environment-jsdom]` [**BREAKING**] Second argument `context` to constructor is mandatory ([#12469](https://github.com/facebook/jest/pull/12469))
- `[jest-environment-node]` [**BREAKING**] Add default `node` and `node-addon` conditions to `exportConditions` for `node` environment ([#11924](https://github.com/facebook/jest/pull/11924))
- `[jest-environment-node]` [**BREAKING**] Pass global config to Jest environment constructor for `node` environment ([#12461](https://github.com/facebook/jest/pull/12461))
- `[jest-environment-node]` [**BREAKING**] Second argument `context` to constructor is mandatory ([#12469](https://github.com/facebook/jest/pull/12469))
- `[jest-environment-node]` Add all available globals to test globals, not just explicit ones ([#12642](https://github.com/facebook/jest/pull/12642), [#12696](https://github.com/facebook/jest/pull/12696))
- `[@jest/expect]` New module which extends `expect` with `jest-snapshot` matchers ([#12404](https://github.com/facebook/jest/pull/12404), [#12410](https://github.com/facebook/jest/pull/12410), [#12418](https://github.com/facebook/jest/pull/12418))
- `[@jest/expect-utils]` New module exporting utils for `expect` ([#12323](https://github.com/facebook/jest/pull/12323))
- `[@jest/fake-timers]` [**BREAKING**] Rename `timers` configuration option to `fakeTimers` ([#12572](https://github.com/facebook/jest/pull/12572))
- `[@jest/fake-timers]` [**BREAKING**] Allow `jest.useFakeTimers()` and `projectConfig.fakeTimers` to take an options bag ([#12572](https://github.com/facebook/jest/pull/12572))
- `[jest-haste-map]` [**BREAKING**] `HasteMap.create` now returns a promise ([#12008](https://github.com/facebook/jest/pull/12008))
- `[jest-haste-map]` Add support for `dependencyExtractor` written in ESM ([#12008](https://github.com/facebook/jest/pull/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](https://github.com/facebook/jest/pull/12435), [#12489](https://github.com/facebook/jest/pull/12489))
- `[jest-mock]` Improve `isMockFunction` to infer types of passed function ([#12442](https://github.com/facebook/jest/pull/12442))
- `[jest-mock]` [**BREAKING**] Improve the usage of `jest.fn` generic type argument ([#12489](https://github.com/facebook/jest/pull/12489))
- `[jest-mock]` Add support for auto-mocking async generator functions ([#11080](https://github.com/facebook/jest/pull/11080))
- `[jest-mock]` Add `contexts` member to mock functions ([#12601](https://github.com/facebook/jest/pull/12601))
- `[@jest/reporters]` Add GitHub Actions reporter ([#11320](https://github.com/facebook/jest/pull/11320), [#12658](https://github.com/facebook/jest/pull/12658))
- `[@jest/reporters]` Pass `reporterContext` to custom reporter constructors as third argument ([#12657](https://github.com/facebook/jest/pull/12657))
- `[jest-resolve]` [**BREAKING**] Add support for `package.json` `exports` ([#11961](https://github.com/facebook/jest/pull/11961), [#12373](https://github.com/facebook/jest/pull/12373))
- `[jest-resolve]` Support package self-reference ([#12682](https://github.com/facebook/jest/pull/12682))
- `[jest-resolve, jest-runtime]` Add support for `data:` URI import and mock ([#12392](https://github.com/facebook/jest/pull/12392))
- `[jest-resolve, jest-runtime]` Add support for async resolver ([#11540](https://github.com/facebook/jest/pull/11540))
- `[jest-resolve]` [**BREAKING**] Remove `browser?: boolean` from resolver options, `conditions: ['browser']` should be used instead ([#12707](https://github.com/facebook/jest/pull/12707))
- `[jest-resolve]` Expose `JestResolver`, `AsyncResolver`, `SyncResolver`, `PackageFilter`, `PathFilter` and `PackageJSON` types ([#12707](https://github.com/facebook/jest/pull/12707), ([#12712](https://github.com/facebook/jest/pull/12712))
- `[jest-runner]` Allow `setupFiles` module to export an async function ([#12042](https://github.com/facebook/jest/pull/12042))
- `[jest-runner]` Allow passing `testEnvironmentOptions` via docblocks ([#12470](https://github.com/facebook/jest/pull/12470))
- `[jest-runner]` Expose `CallbackTestRunner`, `EmittingTestRunner` abstract classes and `CallbackTestRunnerInterface`, `EmittingTestRunnerInterface` to help typing third party runners ([#12646](https://github.com/facebook/jest/pull/12646), [#12715](https://github.com/facebook/jest/pull/12715))
- `[jest-runner]` Lock version of `source-map-support` to 0.5.13 ([#12720](https://github.com/facebook/jest/pull/12720))
- `[jest-runtime]` [**BREAKING**] `Runtime.createHasteMap` now returns a promise ([#12008](https://github.com/facebook/jest/pull/12008))
- `[jest-runtime]` Calling `jest.resetModules` function will clear FS and transform cache ([#12531](https://github.com/facebook/jest/pull/12531))
- `[jest-runtime]` [**BREAKING**] Remove `Context` type export, it must be imported from `@jest/test-result` ([#12685](https://github.com/facebook/jest/pull/12685))
- `[jest-runtime]` Add `import.meta.jest` ([#12698](https://github.com/facebook/jest/pull/12698))
- `[@jest/schemas]` New module for JSON schemas for Jest's config ([#12384](https://github.com/facebook/jest/pull/12384))
- `[@jest/source-map]` Migrate from `source-map` to `@jridgewell/trace-mapping` ([#12692](https://github.com/facebook/jest/pull/12692))
- `[jest-transform]` [**BREAKING**] Make it required for `process()` and `processAsync()` methods to always return structured data ([#12638](https://github.com/facebook/jest/pull/12638))
- `[jest-test-result]` Add duration property to JSON test output ([#12518](https://github.com/facebook/jest/pull/12518))
- `[jest-watcher]` [**BREAKING**] Make `PatternPrompt` class to take `entityName` as third constructor parameter instead of `this._entityName` ([#12591](https://github.com/facebook/jest/pull/12591))
- `[jest-worker]` [**BREAKING**] Allow only absolute `workerPath` ([#12343](https://github.com/facebook/jest/pull/12343))
- `[jest-worker]` [**BREAKING**] Default to advanced serialization when using child process workers ([#10983](https://github.com/facebook/jest/pull/10983))
- `[pretty-format]` New `maxWidth` parameter ([#12402](https://github.com/facebook/jest/pull/12402))
### Fixes
- `[*]` Use `sha256` instead of `md5` as hashing algortihm for compatibility with FIPS systems ([#12722](https://github.com/facebook/jest/pull/12722))
- `[babel-jest]` [**BREAKING**] Pass `rootDir` as `root` in Babel's options ([#12689](https://github.com/facebook/jest/pull/12689))
- `[expect]` Move typings of `.not`, `.rejects` and `.resolves` modifiers outside of `Matchers` interface ([#12346](https://github.com/facebook/jest/pull/12346))
- `[expect]` Throw useful error if `expect.extend` is called with invalid matchers ([#12488](https://github.com/facebook/jest/pull/12488))
- `[expect]` Fix `iterableEquality` ignores other properties ([#8359](https://github.com/facebook/jest/pull/8359))
- `[expect]` Fix print for the `closeTo` matcher ([#12626](https://github.com/facebook/jest/pull/12626))
- `[jest-changed-files]` Improve `changedFilesWithAncestor` pattern for Mercurial SCM ([#12322](https://github.com/facebook/jest/pull/12322))
- `[jest-circus, @jest/types]` Disallow undefined value in `TestContext` type ([#12507](https://github.com/facebook/jest/pull/12507))
- `[jest-config]` Correctly detect CI environment and update snapshots accordingly ([#12378](https://github.com/facebook/jest/pull/12378))
- `[jest-config]` Pass `moduleTypes` to `ts-node` to enforce CJS when transpiling ([#12397](https://github.com/facebook/jest/pull/12397))
- `[jest-config]` [**BREAKING**] Add `mjs` and `cjs` to default `moduleFileExtensions` config ([#12578](https://github.com/facebook/jest/pull/12578))
- `[jest-config, jest-haste-map]` Allow searching for tests in `node_modules` by exposing `retainAllFiles` ([#11084](https://github.com/facebook/jest/pull/11084))
- `[jest-core]` [**BREAKING**] Exit with status `1` if no tests are found with `--findRelatedTests` flag ([#12487](https://github.com/facebook/jest/pull/12487))
- `[jest-core]` Do not report unref-ed subprocesses as open handles ([#12705](https://github.com/facebook/jest/pull/12705))
- `[jest-each]` `%#` is not replaced with index of the test case ([#12517](https://github.com/facebook/jest/pull/12517))
- `[jest-each]` Fixes error message with incorrect count of missing arguments ([#12464](https://github.com/facebook/jest/pull/12464))
- `[jest-environment-jsdom]` Make `jsdom` accessible to extending environments again ([#12232](https://github.com/facebook/jest/pull/12232))
- `[jest-environment-jsdom]` Log JSDOM errors more cleanly ([#12386](https://github.com/facebook/jest/pull/12386))
- `[jest-environment-node]` Add `MessageChannel`, `MessageEvent` to globals ([#12553](https://github.com/facebook/jest/pull/12553))
- `[jest-environment-node]` Add `structuredClone` to globals ([#12631](https://github.com/facebook/jest/pull/12631))
- `[@jest/expect-utils]` [**BREAKING**] Fix false positives when looking for `undefined` prop ([#8923](https://github.com/facebook/jest/pull/8923))
- `[jest-haste-map]` Don't use partial results if file crawl errors ([#12420](https://github.com/facebook/jest/pull/12420))
- `[jest-haste-map]` Make watchman existence check lazy+async ([#12675](https://github.com/facebook/jest/pull/12675))
- `[jest-jasmine2, jest-types]` [**BREAKING**] Move all `jasmine` specific types from `@jest/types` to its own package ([#12125](https://github.com/facebook/jest/pull/12125))
- `[jest-jasmine2]` Do not set `duration` to `0` for skipped tests ([#12518](https://github.com/facebook/jest/pull/12518))
- `[jest-matcher-utils]` Pass maxWidth to `pretty-format` to avoid printing every element in arrays by default ([#12402](https://github.com/facebook/jest/pull/12402))
- `[jest-mock]` Fix function overloads for `spyOn` to allow more correct type inference in complex object ([#12442](https://github.com/facebook/jest/pull/12442))
- `[jest-mock]` Handle overridden `Function.name` property ([#12674](https://github.com/facebook/jest/pull/12674))
- `[@jest/reporters]` Notifications generated by the `--notify` flag are no longer persistent in GNOME Shell. ([#11733](https://github.com/facebook/jest/pull/11733))
- `[@jest/reporters]` Move missing icon file which is needed for `NotifyReporter` class. ([#12593](https://github.com/facebook/jest/pull/12593))
- `[@jest/reporters]` Update `v8-to-istanbul` ([#12697](https://github.com/facebook/jest/pull/12697))
- `[jest-resolver]` Call custom resolver with core node.js modules ([#12654](https://github.com/facebook/jest/pull/12654))
- `[jest-runner]` Correctly resolve `source-map-support` ([#12706](https://github.com/facebook/jest/pull/12706))
- `[jest-worker]` Fix `Farm` execution results memory leak ([#12497](https://github.com/facebook/jest/pull/12497))
### Chore & Maintenance
- `[*]` [**BREAKING**] Drop support for Node v10 and v15 and target first LTS `16.13.0` ([#12220](https://github.com/facebook/jest/pull/12220))
- `[*]` [**BREAKING**] Drop support for `typescript@3.8`, minimum version is now `4.3` ([#11142](https://github.com/facebook/jest/pull/11142), [#12648](https://github.com/facebook/jest/pull/12648))
- `[*]` Bundle all `.d.ts` files into a single `index.d.ts` per module ([#12345](https://github.com/facebook/jest/pull/12345))
- `[*]` Use `globalThis` instead of `global` ([#12447](https://github.com/facebook/jest/pull/12447))
- `[babel-jest]` [**BREAKING**] Only export `createTransformer` ([#12407](https://github.com/facebook/jest/pull/12407))
- `[docs]` Add note about not mixing `done()` with Promises ([#11077](https://github.com/facebook/jest/pull/11077))
- `[docs, examples]` Update React examples to match with the new React guidelines for code examples ([#12217](https://github.com/facebook/jest/pull/12217))
- `[docs]` Add clarity for module factory hoisting limitations ([#12453](https://github.com/facebook/jest/pull/12453))
- `[docs]` Add more information about how code transformers work ([#12407](https://github.com/facebook/jest/pull/12407))
- `[docs]` Add upgrading guide ([#12633](https://github.com/facebook/jest/pull/12633))
- `[expect]` [**BREAKING**] Remove support for importing `build/utils` ([#12323](https://github.com/facebook/jest/pull/12323))
- `[expect]` [**BREAKING**] Migrate to ESM ([#12344](https://github.com/facebook/jest/pull/12344))
- `[expect]` [**BREAKING**] Snapshot matcher types are moved to `@jest/expect` ([#12404](https://github.com/facebook/jest/pull/12404))
- `[jest-cli]` Update `yargs` to v17 ([#12357](https://github.com/facebook/jest/pull/12357))
- `[jest-config]` [**BREAKING**] Remove `getTestEnvironment` export ([#12353](https://github.com/facebook/jest/pull/12353))
- `[jest-config]` [**BREAKING**] Rename config option `name` to `id` ([#11981](https://github.com/facebook/jest/pull/11981))
- `[jest-create-cache-key-function]` Added README.md file with basic usage instructions ([#12492](https://github.com/facebook/jest/pull/12492))
- `[@jest/core]` Use `index.ts` instead of `jest.ts` as main export ([#12329](https://github.com/facebook/jest/pull/12329))
- `[jest-environment-jsdom]` [**BREAKING**] Migrate to ESM ([#12340](https://github.com/facebook/jest/pull/12340))
- `[jest-environment-node]` [**BREAKING**] Migrate to ESM ([#12340](https://github.com/facebook/jest/pull/12340))
- `[jest-haste-map]` Remove legacy `isRegExpSupported` ([#12676](https://github.com/facebook/jest/pull/12676))
- `[@jest/fake-timers]` Update `@sinonjs/fake_timers` to v9 ([#12357](https://github.com/facebook/jest/pull/12357))
- `[jest-jasmine2, jest-runtime]` [**BREAKING**] Use `Symbol` to pass `jest.setTimeout` value instead of `jasmine` specific logic ([#12124](https://github.com/facebook/jest/pull/12124))
- `[jest-phabricator]` [**BREAKING**] Migrate to ESM ([#12341](https://github.com/facebook/jest/pull/12341))
- `[jest-resolve]` [**BREAKING**] Make `requireResolveFunction` argument mandatory ([#12353](https://github.com/facebook/jest/pull/12353))
- `[jest-runner]` [**BREAKING**] Remove some type exports from `@jest/test-result` ([#12353](https://github.com/facebook/jest/pull/12353))
- `[jest-runner]` [**BREAKING**] Second argument to constructor (`Context`) is not optional ([#12640](https://github.com/facebook/jest/pull/12640))
- `[jest-serializer]` [**BREAKING**] Deprecate package in favour of using `v8` APIs directly ([#12391](https://github.com/facebook/jest/pull/12391))
- `[jest-snapshot]` [**BREAKING**] Migrate to ESM ([#12342](https://github.com/facebook/jest/pull/12342))
- `[jest-transform]` Update `write-file-atomic` to v4 ([#12357](https://github.com/facebook/jest/pull/12357))
- `[jest-types]` [**BREAKING**] Remove `Config.Glob` and `Config.Path` ([#12406](https://github.com/facebook/jest/pull/12406))
- `[jest]` Use `index.ts` instead of `jest.ts` as main export ([#12329](https://github.com/facebook/jest/pull/12329))
### Performance
- `[jest-haste-map]` [**BREAKING**] Default to `node` crawler over shelling out to `find` if `watchman` is not enabled ([#12320](https://github.com/facebook/jest/pull/12320))
## 27.5.1
### Features
- `[jest-config]` Support comments in JSON config file ([#12316](https://github.com/facebook/jest/pull/12316))
- `[pretty-format]` Expose `ConvertAnsi` plugin ([#12308](https://github.com/facebook/jest/pull/12308))
### Fixes
- `[expect]` Add type definitions for asymmetric `closeTo` matcher ([#12304](https://github.com/facebook/jest/pull/12304))
- `[jest-cli]` Load binary via exported API ([#12315](https://github.com/facebook/jest/pull/12315))
- `[jest-config]` Replace `jsonlint` with `parse-json` ([#12316](https://github.com/facebook/jest/pull/12316))
- `[jest-repl]` Make module importable ([#12311](https://github.com/facebook/jest/pull/12311) & [#12315](https://github.com/facebook/jest/pull/12315))
### Chore & Maintenance
- `[*]` Avoid anonymous default exports ([#12313](https://github.com/facebook/jest/pull/12313))
## 27.5.0
### Features
- `[expect]` Add asymmetric matcher `expect.closeTo` ([#12243](https://github.com/facebook/jest/pull/12243))
- `[jest-mock]` Added `mockFn.mock.lastCall` to retrieve last argument ([#12285](https://github.com/facebook/jest/pull/12285))
### Fixes
- `[expect]` Add a fix for `.toHaveProperty('')` ([#12251](https://github.com/facebook/jest/pull/12251))
- `[jest-each, @jest/globals]` Allow passing `ReadonlyArray` type of a table to `describe.each` and `test.each` ([#12297](https://github.com/facebook/jest/pull/12297))
- `[@jest/globals]` Add missing `options` argument to `jest.doMock` typing ([#12292](https://github.com/facebook/jest/pull/12292))
- `[jest-environment-node]` Add `atob` and `btoa` ([#12269](https://github.com/facebook/jest/pull/12269))
- `[jest-matcher-utils]` Correct diff for expected asymmetric matchers ([#12264](https://github.com/facebook/jest/pull/12264))
- `[jest-message-util]` Fix `.getTopFrame()` (and `toMatchInlineSnapshot()`) with `mjs` files ([#12277](https://github.com/facebook/jest/pull/12277))
### Chore & Maintenance
- `[*]` Update `graceful-fs` to `^4.2.9` ([#11749](https://github.com/facebook/jest/pull/11749))
### Performance
- `[jest-resolve]` perf: skip error creation on not found `stat` calls ([#11749](https://github.com/facebook/jest/pull/11749))
## 27.4.7
### Fixes
- `jest-config` Add missing `@babel/core` dependency ([#12216](https://github.com/facebook/jest/pull/12216))
## 27.4.6
### Fixes
- `[jest-environment-node]` Add `AbortSignal` ([#12157](https://github.com/facebook/jest/pull/12157))
- `[jest-environment-node]` Add Missing node global `performance` ([#12002](https://github.com/facebook/jest/pull/12002))
- `[jest-runtime]` Handle missing `mocked` property ([#12213](https://github.com/facebook/jest/pull/12213))
- `[@jest/transform]` Update dependency package `pirates` to 4.0.4 ([#12002](https://github.com/facebook/jest/pull/12002))
### Performance
- `jest-config` perf: only register ts-node once when loading TS config files ([#12160](https://github.com/facebook/jest/pull/12160))
## 27.4.5
### Fixes
- `[jest-worker]` Stop explicitly passing `process.env` ([#12141](https://github.com/facebook/jest/pull/12141))
## 27.4.4
### Fixes
- `[babel-jest]` Add `process.version` chunk to the cache key ([#12122](https://github.com/facebook/jest/pull/12122))
- `[jest-environment]` Add `mocked` to `jest` object ([#12133](https://github.com/facebook/jest/pull/12133))
- `[jest-worker]` Stop explicitly passing `execArgv` ([#12128](https://github.com/facebook/jest/pull/12128))
### Chore & Maintenance
- `[website]` Fix the card front that looks overlapping part of the card back
## 27.4.3
### Fixes
- `[jest-environment-jsdom]` Remove `@types/jsdom` dependency (and make its `dom` property `private`) ([#12107](https://github.com/facebook/jest/pull/12107))
## 27.4.2
### Fixes
- `[jest-worker]` Add additional `execArgv` to filter ([#12103](https://github.com/facebook/jest/pull/12103))
## 27.4.1
### Fixes
- `[jest-worker]` Filter `execArgv` correctly ([#12097](https://github.com/facebook/jest/pull/12097))
## 27.4.0
### Features
- `[expect]` Enhancing the `toHaveProperty` matcher to support array selection ([#12092](https://github.com/facebook/jest/pull/12092))
- `[jest-core]` Add support for `testResultsProcessor` written in ESM ([#12006](https://github.com/facebook/jest/pull/12006))
- `[jest-diff, pretty-format]` Add `compareKeys` option for custom sorting of object keys ([#11992](https://github.com/facebook/jest/pull/11992))
- `[jest-mock]` Add `ts-jest` mock util functions ([#12089](https://github.com/facebook/jest/pull/12089))
### Fixes
- `[expect]` Allow again `expect.Matchers` generic with single value ([#11986](https://github.com/facebook/jest/pull/11986))
- `[jest-circus, jest-jasmine2]` Avoid false concurrent test failures due to unhandled promise rejections ([#11987](https://github.com/facebook/jest/pull/11987))
- `[jest-config]` Add missing `slash` dependency to `package.json` ([#12080](https://github.com/facebook/jest/pull/12080))
- `[jest-core]` Incorrect detection of open ZLIB handles ([#12022](https://github.com/facebook/jest/pull/12022))
- `[jest-diff]` Break dependency cycle ([#10818](https://github.com/facebook/jest/pull/10818))
- `[jest-environment-jsdom]` Add `@types/jsdom` dependency ([#11999](https://github.com/facebook/jest/pull/11999))
- `[jest-environment-jsdom]` Do not reset the global.document too early on teardown ([#11871](https://github.com/facebook/jest/pull/11871))
- `[jest-transform]` Improve error and warning messages ([#11998](https://github.com/facebook/jest/pull/11998))
- `[jest-worker]` Pass `execArgv` correctly to `worker_threads` worker ([#12069](https://github.com/facebook/jest/pull/12069))
### Chore & Maintenance
- `[docs]` CLI options alphabetized ([#11586](https://github.com/facebook/jest/pull/11586))
- `[jest-runner]` Add info regarding timers to forcedExit message([#12083](https://github.com/facebook/jest/pull/12083))
- `[*]` Replaced `substr` method with `substring` ([#12066](https://github.com/facebook/jest/pull/12066))
- `[*]` Add `types` entry to all export maps ([#12073](https://github.com/facebook/jest/pull/12073))
## 27.3.1
### Fixes
- `[expect]` Make `expect` extension properties `configurable` ([#11978](https://github.com/facebook/jest/pull/11978))
- `[expect]` Fix `.any()` checks on primitive wrapper classes ([#11976](https://github.com/facebook/jest/pull/11976))
### Chore & Maintenance
- `[expect]` `BigInt` global is always defined, don't check for its existence at runtime ([#11979](https://github.com/facebook/jest/pull/11979))
- `[jest-config, jest-util]` Use `ci-info` instead of `is-ci` to detect CI environment ([#11973](https://github.com/facebook/jest/pull/11973))
## 27.3.0
### Features
- `[jest-config]` Add `testEnvironmentOptions.html` to apply to jsdom input ([#11950](https://github.com/facebook/jest/pull/11950))
- `[jest-resolver]` Support default export (`.`) in `exports` field _if_ `main` is missing ([#11919](https://github.com/facebook/jest/pull/11919))
### Fixes
- `[expect]` Tweak and improve types ([#11949](https://github.com/facebook/jest/pull/11949))
- `[jest-runtime]` Ensure absolute paths can be resolved within test modules ([#11943](https://github.com/facebook/jest/pull/11943))
- `[jest-runtime]` Fix `instanceof` for `ModernFakeTimers` and `LegacyFakeTimers` methods ([#11946](https://github.com/facebook/jest/pull/11946))
## 27.2.5
### Features
- `[jest-config]` Warn when multiple Jest configs are located ([#11922](https://github.com/facebook/jest/pull/11922))
### Fixes
- `[expect]` Pass matcher context to asymmetric matchers ([#11926](https://github.com/facebook/jest/pull/11926) & [#11930](https://github.com/facebook/jest/pull/11930))
- `[expect]` Improve TypeScript types ([#11931](https://github.com/facebook/jest/pull/11931))
- `[expect]` Improve typings of `toThrow()` and `toThrowError()` matchers ([#11929](https://github.com/facebook/jest/pull/11929))
- `[jest-cli]` Improve `--help` printout by removing defunct `--browser` option ([#11914](https://github.com/facebook/jest/pull/11914))
- `[jest-haste-map]` Use distinct cache paths for different values of `computeDependencies` ([#11916](https://github.com/facebook/jest/pull/11916))
- `[@jest/reporters]` Do not buffer `console.log`s when using verbose reporter ([#11054](https://github.com/facebook/jest/pull/11054))
### Chore & Maintenance
- `[expect]` Export default matchers ([#11932](https://github.com/facebook/jest/pull/11932))
- `[@jest/types]` Mark deprecated configuration options as `@deprecated` ([#11913](https://github.com/facebook/jest/pull/11913))
## 27.2.4
### Features
- `[expect]` Add equality checks for Array Buffers in `expect.ToStrictEqual()` ([#11805](https://github.com/facebook/jest/pull/11805))
### Fixes
- `[jest-snapshot]` Correctly indent inline snapshots ([#11560](https://github.com/facebook/jest/pull/11560))
## 27.2.3
### Features
- `[@jest/fake-timers]` Update `@sinonjs/fake-timers` to v8 ([#11879](https://github.com/facebook/jest/pull/11879))
### Fixes
- `[jest-config]` Parse `testEnvironmentOptions` if received from CLI ([#11902](https://github.com/facebook/jest/pull/11902))
- `[jest-reporters]` Call `destroy` on `v8-to-istanbul` converters to free memory ([#11896](https://github.com/facebook/jest/pull/11896))
## 27.2.2
### Fixes
- `[jest-runtime]` Correct `wrapperLength` value for ESM modules. ([#11893](https://github.com/facebook/jest/pull/11893))
## 27.2.1
### Features
- `[jest-transform]` Improve the unexpected token error message. ([#11807](https://github.com/facebook/jest/pull/11807))
### Fixes
- `[jest-runtime]` Fix regression when using `jest.isolateModules` and mocks ([#11882](https://github.com/facebook/jest/pull/11882))
- `[jest-runtime]` Include test name when importing modules after test has completed ([#11885](https://github.com/facebook/jest/pull/11885))
- `[jest-runtime]` Error when ESM import is used after test is torn down ([#11885](https://github.com/facebook/jest/pull/11885))
## 27.2.0
### Features
- `[jest-resolver, jest-runtime]` Pass `conditions` to custom resolvers to enable them to implement support for package.json `exports` field ([#11859](https://github.com/facebook/jest/pull/11859))
- `[jest-runtime]` Allow custom envs to specify `exportConditions` which is passed together with Jest's own conditions to custom resolvers ([#11863](https://github.com/facebook/jest/pull/11863))
### Fixes
- `[@jest/reporters]` Use async transform if available to transform files with no coverage ([#11852](https://github.com/facebook/jest/pull/11852))
- `[jest-util]` Return correct value from `process.send` stub ([#11799](https://github.com/facebook/jest/pull/11799))
## 27.1.1
### Features
- `[jest-runtime]` Add experimental, limited (and undocumented) support for mocking ECMAScript Modules ([#11818](https://github.com/facebook/jest/pull/11818))
### Fixes
- `[jest-resolver]` Support `node:` prefix when importing Node core modules with ESM ([#11817](https://github.com/facebook/jest/pull/11817))
- `[jest-types]` Export the `PrettyFormatOptions` interface ([#11801](https://github.com/facebook/jest/pull/11801))
## 27.1.0
### Features
- `[jest-haste-map]` Use watchman suffix-set option for faster file indexing. ([#11784](https://github.com/facebook/jest/pull/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](https://www.npmjs.com/package/pretty-format#usage-with-options). ([#11654](https://github.com/facebook/jest/pull/11654))
- `[jest-reporters]` Expose the `getSummary` util ([#11695](https://github.com/facebook/jest/pull/11695)).
- `[jest-resolver]` Support `node:` prefix when importing Node core modules ([#11331](https://github.com/facebook/jest/pull/11331))
### Fixes
- `[jest-each]` Relaxed the validation to allow multibyte characters in headings ([#11575](https://github.com/facebook/jest/pull/11575))
- `[jest-environment-jsdom]` Add support for `userAgent` option ([#11773](https://github.com/facebook/jest/pull/11773))
- `[jest-environment-node]` Add `Event` and `EventTarget` to node global environment. ([#11727](https://github.com/facebook/jest/pull/11727))
- `[jest-mock]` Fix `spyOn` to use `Object.prototype.hasOwnProperty` ([#11721](https://github.com/facebook/jest/pull/11721))
- `[jest-resolver]` Add dependency on `jest-haste-map` ([#11759](https://github.com/facebook/jest/pull/11759))
- `[jest-types]` Compat with `@types/node` v16 ([#11645](https://github.com/facebook/jest/pull/11645))
### Chore & Maintenance
- `[docs]` Correct `expects.assertions` documentation by adding async/await for asynchronous function.
## 27.0.6
### Fixes
- `[*]` Publish all modules to include the build change in ([#11569](https://github.com/facebook/jest/pull/11569))
## 27.0.5
### Features
- `[@jest/fake-timers]` Flush callbacks scheduled with `requestAnimationFrame` every 16ms when using legacy timers. ([#11523](https://github.com/facebook/jest/pull/11567))
- `[pretty-format]` Use `globalThis` (with polyfill if required) to bring support for esbuild's browser bundling mode ([#11569](https://github.com/facebook/jest/pull/11569))
### Fixes
- `[jest-core]` Support special characters like `@`, `+` and `()` on Windows with `--findRelatedTests` ([#11548](https://github.com/facebook/jest/pull/11548))
- `[@jest/fake-timers]` Do not add `setImmediate` and `clearImmediate` if they do not exist in the global environment ([#11599](https://github.com/facebook/jest/pull/11599))
- `[@jest/reporters]` Allow `node-notifier@10` as peer dependency ([#11523](https://github.com/facebook/jest/pull/11523))
- `[@jest/reporters]` Update `v8-to-istanbul` ([#11523](https://github.com/facebook/jest/pull/11523))
## 27.0.4
### Fixes
- `[jest-config, jest-resolve]` Pass in `require.resolve` to resolvers to resolve from correct base ([#11493](https://github.com/facebook/jest/pull/11493))
## 27.0.3
### Fixes
- `[jest-config]` `require.resolve` on default test sequencer and test environment ([#11482](https://github.com/facebook/jest/pull/11482))
- `[jest-mock]` Fixed `fn` and `spyOn` exports ([#11480](https://github.com/facebook/jest/pull/11480))
## 27.0.2
### Features
- `[jest-circus]` Add some APIs to make it easier to build your own test runner
- `[jest-reporters]` Expose the `getResultHeader` util ([#11460](https://github.com/facebook/jest/pull/11460))
- `[jest-resolver]` Export `resolve*` utils for different Jest modules ([#11466](https://github.com/facebook/jest/pull/11466))
- `[@jest/test-result]` Export `Test`, `TestEvents` and `TestFileEvent` ([#11466](https://github.com/facebook/jest/pull/11466))
### Fixes
- `[jest-circus]` Add missing `slash` dependency ([#11465](https://github.com/facebook/jest/pull/11465))
- `[jest-circus, @jest/test-sequencer]` Remove dependency on `jest-runner` ([#11466](https://github.com/facebook/jest/pull/11466))
- `[jest-config]` Resolve `config.runner` to absolute path ([#11465](https://github.com/facebook/jest/pull/11465))
- `[jest-config]` Make sure to support functions as config ([#11475](https://github.com/facebook/jest/pull/11475))
- `[jest-core]` Do not warn about `DNSCHANNEL` handles when using the `--detectOpenHandles` option ([#11470](https://github.com/facebook/jest/pull/11470))
- `[jest-runner]` Remove dependency on `jest-config` ([#11466](https://github.com/facebook/jest/pull/11466))
- `[jest-worker]` Loosen engine requirement to `>= 10.13.0` ([#11451](https://github.com/facebook/jest/pull/11451))
## 27.0.1
### Fixes
- `[jest-environment-jsdom]` Bump version of JSDOM to avoid deprecated `request` package ([#11442](https://github.com/facebook/jest/pull/11442))
## 27.0.0
### Features
- `[babel-jest]` Add async transformation ([#11192](https://github.com/facebook/jest/pull/11192))
- `[jest-changed-files]` Use '--' to separate paths from revisions ([#11160](https://github.com/facebook/jest/pull/11160))
- `[jest-circus]` [**BREAKING**] Fail tests when multiple `done()` calls are made ([#10624](https://github.com/facebook/jest/pull/10624))
- `[jest-circus, jest-jasmine2]` [**BREAKING**] Fail the test instead of just warning when describe returns a value ([#10947](https://github.com/facebook/jest/pull/10947))
- `[jest-config]` [**BREAKING**] Default to Node testing environment instead of browser (JSDOM) ([#9874](https://github.com/facebook/jest/pull/9874))
- `[jest-config]` [**BREAKING**] Use `jest-circus` as default test runner ([#10686](https://github.com/facebook/jest/pull/10686))
- `[jest-config]` Add support for `preset` written in ESM ([#11200](https://github.com/facebook/jest/pull/11200))
- `[jest-config, jest-runtime]` Support ESM for files other than `.js` and `.mjs` ([#10823](https://github.com/facebook/jest/pull/10823))
- `[jest-config, jest-runtime]` [**BREAKING**] Use "modern" implementation as default for fake timers ([#10874](https://github.com/facebook/jest/pull/10874) & [#11197](https://github.com/facebook/jest/pull/11197))
- `[jest-config` Allow passing `forceNodeFilesystemAPI` through to `jest-haste-map` ([#11264](https://github.com/facebook/jest/pull/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](https://github.com/facebook/jest/pull/11107))
- `[jest-core]` make `TestWatcher` extend `emittery` ([#10324](https://github.com/facebook/jest/pull/10324))
- `[jest-core]` Run failed tests interactively the same way we do with snapshots ([#10858](https://github.com/facebook/jest/pull/10858))
- `[jest-core]` more `TestSequencer` methods can be async ([#10980](https://github.com/facebook/jest/pull/10980))
- `[jest-core]` Add support for `testSequencer` written in ESM ([#11207](https://github.com/facebook/jest/pull/11207))
- `[jest-core]` Add support for `globalSetup` and `globalTeardown` written in ESM ([#11267](https://github.com/facebook/jest/pull/11267))
- `[jest-core]` Add support for `watchPlugins` written in ESM ([#11315](https://github.com/facebook/jest/pull/11315))
- `[jest-core]` Add support for `runner` written in ESM ([#11232](https://github.com/facebook/jest/pull/11232))
- `[jest-core]` Add support for `reporters` written in ESM ([#11427](https://github.com/facebook/jest/pull/11427))
- `[jest-each]` Add support for interpolation with object properties ([#11388](https://github.com/facebook/jest/pull/11388))
- `[jest-environment-node]` Add AbortController to globals ([#11182](https://github.com/facebook/jest/pull/11182))
- `[@jest/fake-timers]` Update to `@sinonjs/fake-timers` to v7 ([#11198](https://github.com/facebook/jest/pull/11198))
- `[jest-haste-map]` Handle injected scm clocks ([#10966](https://github.com/facebook/jest/pull/10966))
- `[jest-haste-map]` Add `enableSymlinks` configuration option to follow symlinks for test files ([#9351](https://github.com/facebook/jest/pull/9351))
- `[jest-repl, jest-runner]` [**BREAKING**] Run transforms over environment ([#8751](https://github.com/facebook/jest/pull/8751))
- `[jest-repl]` Add support for `testEnvironment` written in ESM ([#11232](https://github.com/facebook/jest/pull/11232))
- `[jest-reporters]` Add static filepath property to all reporters ([#11015](https://github.com/facebook/jest/pull/11015))
- `[jest-runner]` [**BREAKING**] set exit code to 1 if test logs after teardown ([#10728](https://github.com/facebook/jest/pull/10728))
- `[jest-runner]` [**BREAKING**] Run transforms over `runner` ([#8823](https://github.com/facebook/jest/pull/8823))
- `[jest-runner]` [**BREAKING**] Run transforms over `testRunner` ([#8823](https://github.com/facebook/jest/pull/8823))
- `[jest-runner]` Possibility to use ESM for test environment ([11033](https://github.com/facebook/jest/pull/11033))
- `[jest-runner]` Add support for `testRunner` written in ESM ([#11232](https://github.com/facebook/jest/pull/11232))
- `[jest-runtime]` Detect reexports from CJS as named exports in ESM ([#10988](https://github.com/facebook/jest/pull/10988))
- `[jest-runtime]` Support for async code transformations ([#11191](https://github.com/facebook/jest/pull/11191) & [#11220](https://github.com/facebook/jest/pull/11220))
- `[jest-snapshot]` [**BREAKING**] Make prettier optional for inline snapshots - fall back to string replacement ([#7792](https://github.com/facebook/jest/pull/7792) & [#11192](https://github.com/facebook/jest/pull/11192))
- `[jest-snapshot]` [**BREAKING**] Run transforms over `snapshotResolver` ([#8751](https://github.com/facebook/jest/pull/8829))
- `[jest-transform]` Pass config options defined in Jest's config to transformer's `process` and `getCacheKey` functions ([#10926](https://github.com/facebook/jest/pull/10926))
- `[jest-transform]` Add support for transformers written in ESM ([#11163](https://github.com/facebook/jest/pull/11163))
- `[jest-transform]` [**BREAKING**] Do not export `ScriptTransformer` class, instead export the async function `createScriptTransformer` ([#11163](https://github.com/facebook/jest/pull/11163))
- `[jest-transform]` Async code transformations ([#9889](https://github.com/facebook/jest/pull/9889))
- `[jest-transform]` Support transpiled transformers ([#11193](https://github.com/facebook/jest/pull/11193))
- `[jest-transform]` [**BREAKING**] `requireAndTranspileModule` always return a `Promise`, and the third parameter type is changed to `RequireAndTranspileModuleOptions` which accept `applyInteropRequireDefault` option ([#11232](https://github.com/facebook/jest/pull/11232))
- `[jest-transform]` [**BREAKING**] `createTranspilingRequire` return function which return a `Promise` now ([#11232](https://github.com/facebook/jest/pull/11232))
- `[jest-util]` add requireOrImportModule for importing CJS or ESM ([#11199](https://github.com/facebook/jest/pull/11199))
- `[jest-util]` add `applyInteropRequireDefault` option on `requireOrImportModule` ([#11232](https://github.com/facebook/jest/pull/11232))
- `[jest-watcher]` Added support for clearing the line when `<C-u>` is pressed in a watch mode pattern prompt ([#11358](https://github.com/facebook/jest/pull/11358))
- `[jest-worker]` Add support for custom task queues and adds a `PriorityQueue` implementation. ([#10921](https://github.com/facebook/jest/pull/10921))
- `[jest-worker]` Add in-order scheduling policy to jest worker ([10902](https://github.com/facebook/jest/pull/10902))
- `[pretty-format]` Better print for sparse arrays ([11326](https://github.com/facebook/jest/pull/11326))
- `[pretty-print]` Add option `printBasicPrototype` which determines whether or not the prototype should be printed for raw objects or arrays ([#11441](https://github.com/facebook/jest/pull/11441))
### Fixes
- `[babel-plugin-jest-hoist]` Add `__dirname` and `__filename` to whitelisted globals ([#10903](https://github.com/facebook/jest/pull/10903))
- `[expect]` [**BREAKING**] Revise `expect.not.objectContaining()` to be the inverse of `expect.objectContaining()`, as documented. ([#10708](https://github.com/facebook/jest/pull/10708))
- `[expect]` [**BREAKING**] Make `toContain` more strict with the received type ([#10119](https://github.com/facebook/jest/pull/10119) & [#10929](https://github.com/facebook/jest/pull/10929))
- `[expect]` [**BREAKING**] `matcherResult` on `JestAssertionError` are now strings rather than functions ([#10989](https://github.com/facebook/jest/pull/10989))
- `[jest-circus]` Fixed the issue of beforeAll & afterAll hooks getting executed even if it is inside a skipped `describe` block ([#10806](https://github.com/facebook/jest/pull/10806))
- `[jest-circus]` Fix `testLocation` on Windows when using `test.each` ([#10871](https://github.com/facebook/jest/pull/10871))
- `[jest-cli]` Use testFailureExitCode when bailing from a failed test ([#10958](https://github.com/facebook/jest/pull/10958))
- `[jest-cli]` Print custom error if error thrown from global hooks is not an error already ([#11003](https://github.com/facebook/jest/pull/11003))
- `[jest-cli]` Allow running multiple "projects" from programmatic API ([#11307](https://github.com/facebook/jest/pull/11307))
- `[jest-cli]` Fix missing collectCoverage after init ([#11353](https://github.com/facebook/jest/pull/11353))
- `[jest-cli, jest-config, jest-types]` Move all default values into `jest-config` ([#9924](https://github.com/facebook/jest/pull/9924))
- `[jest-config]` [**BREAKING**] Change default file extension order by moving json behind ts and tsx ([10572](https://github.com/facebook/jest/pull/10572))
- `[jest-console]` `console.dir` now respects the second argument correctly ([#10638](https://github.com/facebook/jest/pull/10638))
- `[jest-core]` Don't report PerformanceObserver as open handle ([#11123](https://github.com/facebook/jest/pull/11123))
- `[jest-core]` Use `WeakRef` to hold timers when detecting open handles ([#11277](https://github.com/facebook/jest/pull/11277))
- `[jest-core]` Correctly detect open handles that were created in test functions using `done` callbacks ([#11382](https://github.com/facebook/jest/pull/11382))
- `[jest-core]` Do not collect `RANDOMBYTESREQUEST` as open handles ([#11278](https://github.com/facebook/jest/pull/11278))
- `[jest-core]` Wait briefly for open handles to close before flagging them when using `--detectOpenHandles` ([#11429](https://github.com/facebook/jest/pull/11429))
- `[jest-diff]` [**BREAKING**] Use only named exports ([#11371](https://github.com/facebook/jest/pull/11371))
- `[jest-each]` [**BREAKING**] Ignore excess words in headings ([#8766](https://github.com/facebook/jest/pull/8766))
- `[jest-each]` Support array index with template strings ([#10763](https://github.com/facebook/jest/pull/10763))
- `[jest-each]` Interpolate `%%` correctly ([#11364](https://github.com/facebook/jest/pull/11364))
- `[jest-each]` Fix wrong interpolation when the value of array contains multiple `%` ([#11364](https://github.com/facebook/jest/pull/11364))
- `[jest-environment]` [**BREAKING**] Drop support for `runScript` for test environments ([#11155](https://github.com/facebook/jest/pull/11155))
- `[jest-environment-jsdom]` Use inner realm’s `ArrayBuffer` constructor ([#10885](https://github.com/facebook/jest/pull/10885))
- `[jest-environment-jsdom]` [**BREAKING**] Remove Node globals `setImmediate` and `clearImmediate` ([#11222](https://github.com/facebook/jest/pull/11222))
- `[jest-get-type]` [**BREAKING**] Convert to ES Module ([#11359](https://github.com/facebook/jest/pull/11359))
- `[jest-globals]` [**BREAKING**] Disallow return values other than a `Promise` from hooks and tests ([#10512](https://github.com/facebook/jest/pull/10512))
- `[jest-globals]` [**BREAKING**] Disallow mixing a done callback and returning a `Promise` from hooks and tests ([#10512](https://github.com/facebook/jest/pull/10512))
- `[jest-haste-map]` Vendor `NodeWatcher` from `sane` ([#10919](https://github.com/facebook/jest/pull/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](https://github.com/facebook/jest/pull/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](https://github.com/facebook/jest/pull/10806))
- `[jest-jasmine2]` Wrap all test functions so they open handles that were created in test functions using `done` callbacks can be detected ([#11382](https://github.com/facebook/jest/pull/11382))
- `[jest-reporter]` Handle empty files when reporting code coverage with V8 ([#10819](https://github.com/facebook/jest/pull/10819))
- `[jest-resolve]` Replace read-pkg-up with escalade package ([#10781](https://github.com/facebook/jest/pull/10781))
- `[jest-resolve]` Disable `jest-pnp-resolver` for Yarn 2 ([#10847](https://github.com/facebook/jest/pull/10847))
- `[jest-runtime]` [**BREAKING**] Do not inject `global` variable into module wrapper ([#10644](https://github.com/facebook/jest/pull/10644))
- `[jest-runtime]` [**BREAKING**] remove long-deprecated `jest.addMatchers`, `jest.resetModuleRegistry`, and `jest.runTimersToTime` ([#9853](https://github.com/facebook/jest/pull/9853))
- `[jest-runtime]` Fix stack overflow and promise deadlock when importing mutual dependant ES module ([#10892](https://github.com/facebook/jest/pull/10892))
- `[jest-runtime]` Prevent global module registry from leaking into `isolateModules` registry ([#10963](https://github.com/facebook/jest/pull/10963))
- `[jest-runtime]` Refactor to prevent race condition when linking and evaluating ES Modules ([#11150](https://github.com/facebook/jest/pull/11150))
- `[jest-runtime]` Throw correct error when attempting to load ESM via `require` ([#11260](https://github.com/facebook/jest/pull/11260))
- `[jest-runtime]` Do not cache modules that throw during evaluation ([#11263](https://github.com/facebook/jest/pull/11263))
- `[jest-transform]` Show enhanced `SyntaxError` message for all `SyntaxError`s ([#10749](https://github.com/facebook/jest/pull/10749))
- `[jest-transform]` [**BREAKING**] Refactor API to pass an options bag around rather than multiple boolean options ([#10753](https://github.com/facebook/jest/pull/10753))
- `[jest-transform]` [**BREAKING**] Refactor API of transformers to pass an options bag rather than separate `config` and other options ([#10834](https://github.com/facebook/jest/pull/10834))
- `[jest-types]` Fix `Config.ts` `projects` types ([#11285](https://github.com/facebook/jest/pull/11285))
- `[jest-util]` Replace micromatch with picomatch to fix issues with negated globs ([#11287](https://github.com/facebook/jest/pull/11287))
- `[jest-validate]` Use `en-US` locale to avoid case conversion problems while validating CLI options on machines with some certain locales(e.g. Turkish) set as default locale. ([#11412](https://github.com/facebook/jest/pull/11412))
- `[jest-worker]` [**BREAKING**] Use named exports ([#10623](https://github.com/facebook/jest/pull/10623))
- `[jest-worker]` Do not swallow errors during serialization ([#10984](https://github.com/facebook/jest/pull/10984))
- `[jest-worker]` Handle `ERR_IPC_CHANNEL_CLOSED` errors properly ([#11143](https://github.com/facebook/jest/pull/11143))
- `[pretty-format]` [**BREAKING**] Convert to ES Modules ([#10515](https://github.com/facebook/jest/pull/10515))
- `[pretty-format]` Only call `hasAttribute` if it's a function ([#11000](https://github.com/facebook/jest/pull/11000))
- `[pretty-format]` Handle jsdom attributes properly ([#11189](https://github.com/facebook/jest/pull/11189))
- `[pretty-format]` Import pretty-format using named imports ([#11360](https://github.com/facebook/jest/pull/11360))
### Chore & Maintenance
- `[*]` [**BREAKING**] Only support Node LTS releases and Node 15 ([#10685](https://github.com/facebook/jest/pull/10685))
- `[*]` [**BREAKING**] Add `exports` field to all `package.json`s ([#9921](https://github.com/facebook/jest/pull/9921))
- `[*]` Make it easier for Jest's packages to use the VM escape hatch ([#10824](https://github.com/facebook/jest/pull/10824))
- `[*]` [**BREAKING**] Remove deprecated `mapCoverage` ([#9968](https://github.com/facebook/jest/pull/9968))
- `[babel-jest]` [**BREAKING**] Migrate to ESM ([#11193](https://github.com/facebook/jest/pull/11193))
- `[docs]` Correct example using `browser-resolve` ([#11140](https://github.com/facebook/jest/pull/11140))
- `[docs]` Clarify `timers` configuration property ([#11376](https://github.com/facebook/jest/pull/11376))
- `[jest, jest-core]` [**BREAKING**] Replace `TestScheduler` export with `createTestScheduler` ([#11427](https://github.com/facebook/jest/pull/11427))
- `[jest-config]` [**BREAKING**] Remove `enabledTestsMap` config, use `filter` instead ([#10787](https://github.com/facebook/jest/pull/10787))
- `[jest-console]` [**BREAKING**] Move `root` into `config` and take `GlobalConfig` as mandatory parameter for `getConsoleOutput` ([#10126](https://github.com/facebook/jest/pull/10126))
- `[jest-console]` Export LogEntry ([#11017](https://github.com/facebook/jest/pull/11017))
- `[jest-fake-timers]` Clarify global behavior of `jest.useFakeTimers` and `jest.useRealTimers` ([#10867](https://github.com/facebook/jest/pull/10867))
- `[jest-haste-map]` [**BREAKING**] Migrate to ESM ([#10875](https://github.com/facebook/jest/pull/10875))
- `[jest-haste-map]` [**BREAKING**] Remove support for deprecated option `ignorePattern` as function ([#10348](https://github.com/facebook/jest/pull/10348))
- `[jest-jasmine2]` [**BREAKING**] Migrate to ESM ([#10906](https://github.com/facebook/jest/pull/10906))
- `[jest-jasmine2]` [**BREAKING**] Remove unused options argument from `Env` constructor ([#10240](https://github.com/facebook/jest/pull/10240))
- `[jest-repl, jest-runtime]` [**BREAKING**] Move the `jest-runtime` CLI into `jest-repl` ([#10016](https://github.com/facebook/jest/pull/10016) & [#10925](https://github.com/facebook/jest/pull/10925))
- `[jest-resolve]` [**BREAKING**] Migrate to ESM ([#10688](https://github.com/facebook/jest/pull/10688))
- `[jest-resolve-dependencies]` [**BREAKING**] Migrate to ESM ([#10876](https://github.com/facebook/jest/pull/10876))
- `[jest-mock]` [**BREAKING**] Migrate to ESM ([#10887](https://github.com/facebook/jest/pull/10887))
- `[jest-reporters]` [**BREAKING**] Make `node-notifier` a peer dependency ([#10977](https://github.com/facebook/jest/pull/10977))
- `[jest-resolve, jest-runtime]` [**BREAKING**] Use `Map`s instead of objects for all cached resources ([#10968](https://github.com/facebook/jest/pull/10968))
- `[jest-runner]` [**BREAKING**] Migrate to ESM ([#10900](https://github.com/facebook/jest/pull/10900))
- `[jest-runtime]` [**BREAKING**] Remove deprecated and unused `getSourceMapInfo` from Runtime ([#9969](https://github.com/facebook/jest/pull/9969))
- `[jest-transformer]` [**BREAKING**] Remove unused `isCoreModule` option ([#11166](https://github.com/facebook/jest/pull/11166))
- `[jest-util]` No longer checking `enumerable` when adding `process.domain` ([#10862](https://github.com/facebook/jest/pull/10862))
- `[jest-validate]` [**BREAKING**] Remove `recursiveBlacklist` option in favor of previously introduced `recursiveDenylist` ([#10650](https://github.com/facebook/jest/pull/10650))
- `[website]` Replace 'Github' with 'GitHub' ([#11279](https://github.com/facebook/jest/pull/11279))
- `[website]` Remove a language code from the link to the Node.js website ([#11282](https://github.com/facebook/jest/pull/11282))
- `[website]` Remove a duplicated word ([#11281](https://github.com/facebook/jest/pull/11281))
- `[website]` Add french to website ([#11361](https://github.com/facebook/jest/pull/11361))
### Performance
- `[jest-resolve]` Cache reading and parsing of `package.json`s ([#11076](https://github.com/facebook/jest/pull/11076))
- `[jest-runtime, jest-transform]` share `cacheFS` between runtime and transformer ([#10901](https://github.com/facebook/jest/pull/10901))
- `[jest-runtime]` Load `chalk` only once per worker ([#10864](https://github.com/facebook/jest/pull/10864))
- `[jest-worker]` Fix memory leak of previous task arguments while no new task is scheduled ([#11187](https://github.com/facebook/jest/pull/11187))
## 26.6.3
### Fixes
- `[jest-resolve-dependencies]` Continue dependency resolution if mock dependency can't be found ([#10779](https://github.com/facebook/jest/pull/10779))
## 26.6.2
### Features
- `[jest-core]` Add `findRelatedTests` and `nonFlagArgs` in allowed config options for `updateConfigAndRun` in watch plugins ([#10659](https://github.com/facebook/jest/pull/10659))
### Fixes
- `[babel-plugin-jest-hoist]` Preserve order of hoisted mock nodes within containing block ([#10536](https://github.com/facebook/jest/pull/10536))
- `[babel-plugin-jest-hoist]` Hoist pure constants to support experimental JSX transform in hoisted mocks ([#10723](https://github.com/facebook/jest/pull/10723))
- `[babel-preset-jest]` Update `babel-preset-current-node-syntax` to support top level await ([#10747](https://github.com/facebook/jest/pull/10747))
- `[expect]` Revert "Fix `objectContaining` to work recursively into sub-objects ([#10508](https://github.com/facebook/jest/pull/10508))" ([#10766](https://github.com/facebook/jest/pull/10766))
- `[jest-circus, jest-jasmine2]` fix: don't assume `stack` is always a string ([#10697](https://github.com/facebook/jest/pull/10697))
- `[jest-config]` Fix bug introduced in watch mode by PR [#10678](https://github.com/facebook/jest/pull/10678/files#r511037803) ([#10692](https://github.com/facebook/jest/pull/10692))
- `[jest-config]` Throw correct error for missing preset modules ([#10737](https://github.com/facebook/jest/pull/10737))
- `[jest-resolve-dependencies]` Resolve mocks as dependencies ([#10713](https://github.com/facebook/jest/pull/10713))
- `[jest-runtime]` Handle file URLs in dynamic imports ([#10744](https://github.com/facebook/jest/pull/10744))
- `[jest-runtime, babel-jest]` Pass more ESM options to `@jest/transform` ([#10752](https://github.com/facebook/jest/pull/10752))
- `[jest-runtime]` Properly inject `extraGlobals` into the runtime ([#10758](https://github.com/facebook/jest/pull/10758))
- `[jest-transform]` Link to ESM docs on syntax errors ([#10748](https://github.com/facebook/jest/pull/10748))
### Chore & Maintenance
- `[docs]` Add docs for using mocks in TypeScript ([#10415](https://github.com/facebook/jest/pull/10415))
- `[eslint-config-fb-strict]` Move package from this repo to `fbjs` repo ([#10739](https://github.com/facebook/jest/pull/10739))
- `[examples]` Update TypeScript example to show use of newer Jest types ([#10399](https://github.com/facebook/jest/pull/10399))
- `[jest-cli]` chore: standardize files and folder names ([#10698](https://github.com/facebook/jest/pull/10698))
- `[jest-config]` Switch ts-node `Register` type to `Service` due to deprecation ([#11210](https://github.com/facebook/jest/pull/11210))
## 26.6.1
### Features
- `[jest-runtime]` Support named exports from CommonJS as named ES Module imports ([#10673](https://github.com/facebook/jest/pull/10673))
- `[jest-validate]` Add support for `recursiveDenylist` option as an alternative to `recursiveBlacklist` ([#10236](https://github.com/facebook/jest/pull/10236))
### Fixes
- `[expect]` Fix `objectContaining` to work recursively into sub-objects ([#10508](https://github.com/facebook/jest/pull/10508))
- `[jest-cli, jest-core, jest-config, jest-types]` Fix `--onlyFailures` flag to work in non-watch mode ([#10678](https://github.com/facebook/jest/pull/10678/files))
- `[jest-config]` Fix for the `jest.config.ts` compiler to not interfere with `tsconfig.json` files ([#10675](https://github.com/facebook/jest/pull/10675))
- `[jest-message-util]` Update to work properly with Node 15 ([#10660](https://github.com/facebook/jest/pull/10660))
- `[jest-mock]` Allow to mock methods in getters (TypeScript 3.9 export) ([#10156](https://github.com/facebook/jest/pull/10156))
## 26.6.0
### Features
- `[jest-cli, jest-config]` Add support for the `jest.config.ts` configuration file ([#10564](https://github.com/facebook/jest/pull/10564))
### Fixes
- `[jest-config]` Simplify transform RegExp ([#10207](https://github.com/facebook/jest/pull/10207))
- `[jest-fake-timers]` Lazily instantiate mock timers ([#10551](https://github.com/facebook/jest/pull/10551))