jest-util

30.5.1 · 1 Sep 2026MIT156.2M / weekRepository Homepage npm Atom feed

Upgrading jest-util From 22.2.2 to 30.5.1

Same major only

89 releases in betweennotes for 87

Reading releases, release notes and advisories…

Other targets from 22.2.2Newest 22.x22.4.3

25.0.0 has no release note on GitHub or in the repository's changelog, so its breaking changes are missing from the counts below; the migration guide covers them.

159+
changes to make: 0
advisories fixed: 521+
new: 619+
fixes

Counted from 87 of 89 release notes. Advisories are counted from the advisory database, in full.

Start here

Upgrading from Jest 29 to 30

Security

[jest-environment-jsdom, jest-environment-jsdom-abstract] Increased version of jsdom to ^26.0.0 (#15325 CVE-2024-37890)
30.0.0
*: Update semver dependency to get vulnerability fix
29.6.0
jest-cli: Fix prototype pollution vulnerability in dependency
24.3.0

Release by release

30.5.1
1 Sep 20265 fixes
- fixed
  jest-config: Don't warn about global-only options in the config that supplies the global config - the root config a project resolves to, or the first entry of --projects when no root config is passed
- fixed
  jest-config, jest-types: Stop accepting reporters, coverageReporters, workerIdleMemoryLimit, cwd and runnerOptions in a project config - they were silently ignored, and now warn like the other global-only options
- fixed
  jest-config, jest-validate: Warn about maxWorkers and coverageThreshold in a project config instead of dropping them without a word
- fixed
  jest-resolve: Match moduleNameMapper patterns against the specifier as written again (reverting #16390)
- fixed
  jest-runtime: Resolve package imports specifiers like #dep under ESM again
30.5.0
Migration needed28 Aug 202635 new · 86 fixes
- breaking
  jest-haste-map: Match watched files on a full extension, so moduleFileExtensions: ['js'] no longer accepts foo.mjs
- deprecated
  @jest/source-map: Deprecate getCallsite in favour of SourceMapSupport#getCallsite
- new
  babel-plugin-istanbul is updated to v8
- new
  glob is updated to v13
30.4.1
8 May 20261 new · 1 fix
- new
  [jest-config, jest-core, jest-runner, jest-schemas, jest-types] Allow custom runner configuration options via tuple format ['runner-path', {options}]
- fixed
  jest-runtime: Align CJS-from-ESM default export with Node: module.exports is always the ESM default, __esModule unwrapping is no longer applied
30.4.0
7 May 202616 new · 21 fixes
- new
  babel-jest: Support collecting coverage from .mts, .cts (and other) files
- new
  [jest-circus, jest-cli, jest-config, jest-core, jest-jasmine2, jest-types] Add --collect-tests flag to discover and list tests without executing them
- new
  jest-config, jest-runner, jest-worker: Add workerGracefulExitTimeout config option to control how long workers are given to exit before being force-killed
- new
  jest-config: Add support for jest.config.mts as a valid configuration file
30.3.0
10 Mar 20263 new · 6 fixes
- new
  jest-config: Add defineConfig and mergeConfig helpers for type-safe Jest config
- new
  jest-fake-timers: Add setTimerTickMode to configure how timers advance
- new
  *: Reduce token usage when run through LLMs
- fixed
  jest-config: Keep CLI coverage output when using --json with --outputFile
30.2.0
28 Sep 20251 new · 2 fixes
- new
  jest-environment-jsdom-abstract: Add support for JSDOM v27
- fixed
  babel-jest: Export the TransformerConfig interface
- fixed
  jest-config: Fix jest.config.ts with TS loader specified in docblock pragma
30.0.5
22 Jul 20252 new · 1 fix
- new
  jest-config: Allow testMatch to take a string value
- new
  jest-worker: Let workerIdleMemoryLimit accept 0 to always restart worker child processes
- fixed
  expect: Fix bigint error
30.0.2
19 Jun 20252 fixes
- fixed
  jest-matcher-utils: Make 'deepCyclicCopyObject' safer by setting descriptors to a null-prototype object
- fixed
  jest-util: Make garbage collection protection property writable

2 other lines we could not sort, mostly version bumps

expect: Revert "Fix objectContaining to work recursively into sub-objects (#10508)"
26.6.2
jest-runtime, jest-jasmine2, jest-circus: Experimental, limited ECMAScript Modules support (#9772 & #9842)
25.4.0

287 internal lines (docs, tests, tooling) left out.

Upgrade to 30.5.1

npm install jest-util@30.5.1

What 30.5.1 needs

Reading 30.5.1's manifest…

Check against your package.json

Which of your other dependencies stand in the way of 30.5.1. Read once, not stored.

After upgrading

Run the type checker, the linter and the tests.
Build, and look for new deprecation warnings.
Update peer dependencies the new version asks for.

Upgrading jest-util From 22.2.2 to 30.5.1

Start here

Before you upgrade

Security

Release by release