Features

• 13d0bd3 feat: Add and use SourceCode#getLoc/getRange (#18703) (Nicholas C. Zakas)

Bug Fixes

• ab0ff27 fix: Throw error when invalid flags passed (#18705) (Nicholas C. Zakas)
• 70dc803 fix: basePath directory can never be ignored (#18711) (Milos Djermanovic)

Documentation

• 282df1a docs: Add system theme option (#18617) (Amaresh S M)
• 53b1ff0 docs: Debug config docs (#18698) (Nicholas C. Zakas)
• a7016a5 docs: fix search input stylings (#18682) (Amaresh S M)

Build Related

• 4514424 build: Enable JSON linting (#18681) (Nicholas C. Zakas)

Chores

• deee448 chore: upgrade to @eslint/[email protected] (#18720) (Francesco Trotta)
• 4aaf2b3 chore: package.json update for @eslint/js release (Jenkins)
• 8e1a627 chore: update dependency @eslint/core to ^0.2.0 (#18700) (renovate[bot])

Features

• 7bd9839 feat: add support for es2025 duplicate named capturing groups (#18630) (Yosuke Ota)
• 1381394 feat: add regex option in no-restricted-imports (#18622) (Nitin Kumar)

Bug Fixes

• 14e9f81 fix: destructuring in catch clause in no-unused-vars (#18636) (Francesco Trotta)

Documentation

• 9f416db docs: Add Powered by Algolia label to the search. (#18633) (Amaresh S M)
• c8d26cb docs: Open JS Foundation -> OpenJS Foundation (#18649) (Milos Djermanovic)
• 6e79ac7 docs: loadESLint does not support option cwd (#18641) (Francesco Trotta)

Chores

• 793b718 chore: upgrade @eslint/[email protected] (#18680) (Francesco Trotta)
• 7ed6f9a chore: package.json update for @eslint/js release (Jenkins)
• 7bcda76 refactor: Add type references (#18652) (Nicholas C. Zakas)
• 51bf57c chore: add tech sponsors through actions (#18624) (Strek)
• 6320732 refactor: don't use parent property in NodeEventGenerator (#18653) (Milos Djermanovic)
• 9e6d640 refactor: move "Parsing error" prefix adding to Linter (#18650) (Milos Djermanovic)

Features

• e2b16e2 feat: Implement feature flags (#18516) (Nicholas C. Zakas)
• 8824aa1 feat: add ecmaVersion: 2025, parsing duplicate named capturing groups (#18596) (Milos Djermanovic)

Bug Fixes

• 1613e2e fix: Allow escaping characters in config patterns on Windows (#18628) (Milos Djermanovic)
• 21d3766 fix: no-unused-vars include caught errors pattern in report message (#18609) (Kirk Waiblinger)
• d7a7736 fix: improve no-unused-vars message on unused caught errors (#18608) (Kirk Waiblinger)
• f9e95d2 fix: correct locations of invalid /* eslint */ comments (#18593) (Milos Djermanovic)

Documentation

• 13dbecd docs: Limit search to just docs (#18627) (Nicholas C. Zakas)
• 375227f docs: Update getting-started.md - add pnpm to init eslint config (#18599) (Kostiantyn Ochenash)
• 44915bb docs: Update README (GitHub Actions Bot)
• d50db7b docs: Update vscode-eslint info (#18595) (Nicholas C. Zakas)

Chores

• b15ee30 chore: upgrade @eslint/[email protected] (#18632) (Milos Djermanovic)
• d655503 chore: package.json update for @eslint/js release (Jenkins)
• 7c78ad9 refactor: Use language.visitorKeys and check for non-JS SourceCode (#18625) (Nicholas C. Zakas)
• 69ff64e refactor: Return value of applyInlineConfig() (#18623) (Nicholas C. Zakas)
• d2d06f7 refactor: use / separator when adjusting ignorePatterns on Windows (#18613) (Milos Djermanovic)
• 6421973 refactor: fix disable directives for languages with 0-based lines (#18605) (Milos Djermanovic)
• 0a13539 refactor: Allow optional methods for languages (#18604) (Nicholas C. Zakas)
• c7ddee0 chore: make internal-rules not being a package (#18601) (Milos Djermanovic)
• 3379164 chore: remove .eslintrc.js (#18011) (唯然)
• d0c3a32 chore: update knip (with webdriver-io plugin) (#18594) (Lars Kappert)

Features

• b2d256c feat: no-sparse-arrays report on "comma" instead of the whole array (#18579) (fisker Cheung)

Bug Fixes

• 6880286 fix: treat * as a universal pattern (#18586) (Milos Djermanovic)
• 7fbe211 fix: message template for all files ignored (#18564) (Milos Djermanovic)
• 469cb36 fix: Don't lint the same file multiple times (#18552) (Milos Djermanovic)
• 5cff638 fix: improve message for ignored files without a matching config (#18404) (Francesco Trotta)

Documentation

• 455f7fd docs: add section about including .gitignore files (#18590) (Milos Djermanovic)
• 721eafe docs: update info about universal files patterns (#18587) (Francesco Trotta)
• 8127127 docs: Update README (GitHub Actions Bot)
• 55c2a66 docs: Update README (GitHub Actions Bot)
• eb76282 docs: Update README (GitHub Actions Bot)
• ff6e96e docs: baseConfig and overrideConfig can be arrays (#18571) (Milos Djermanovic)
• d2d83e0 docs: Add mention of eslint-transforms to v9 migration guide (#18566) (Nicholas C. Zakas)
• 9ce6832 docs: add callout box for unintuitive behavior (#18567) (Ben McCann)
• b8db99c docs: Add VS Code info to config migration guide (#18555) (Nicholas C. Zakas)
• 518a35c docs: Mention config migrator (#18561) (Nicholas C. Zakas)
• eb440fc docs: specifying files with arbitrary or no extension (#18539) (Francesco Trotta)
• 38c159e docs: Provide example of reading package.json for plugins meta (#18530) (Nicholas C. Zakas)
• d16a659 docs: add link to migration guide for --ext CLI option (#18537) (Milos Djermanovic)
• 73408de docs: add link to configuration file docs before examples (#18535) (Milos Djermanovic)

Chores

• f588160 chore: upgrade @eslint/[email protected] (#18591) (Milos Djermanovic)
• 5890841 chore: package.json update for @eslint/js release (Jenkins)
• e9f4ccd chore: remove unused eslint-disable directive (#18589) (Milos Djermanovic)
• 4b23ffd refactor: Move JS parsing logic into JS language (#18448) (Nicholas C. Zakas)
• 1495b93 chore: update WebdriverIO packages (#18558) (Christian Bromann)
• cea7ede chore: add website donate link instead of opencollective (#18582) (Strek)
• ec94880 chore: package.json update for eslint-config-eslint release (Jenkins)
• 6912586 chore: extract formatting rules into separate config (#18560) (Milos Djermanovic)
• 9738f7e ci: fix CLI flags for c8, raise thresholds (#18554) (Francesco Trotta)
• c6de7bb chore: update dependency markdownlint-cli to ^0.41.0 (#18538) (renovate[bot])
• 2c8fd34 ci: pin @wdio/browser-runner v8.36.0 (#18540) (唯然)

Features

• 89a4a0a feat: ignore IIFE's in the no-loop-func rule (#17528) (Nitin Kumar)

Bug Fixes

• f6534d1 fix: skip processor code blocks that match only universal patterns (#18507) (Milos Djermanovic)
• 7226ebd fix: allow implicit undefined return in no-constructor-return (#18515) (Ali Rezvani)
• 389744b fix: use @eslint/config-inspector@latest (#18483) (唯然)
• 70118a5 fix: func-style false positive with arrow functions and super (#18473) (Milos Djermanovic)

Documentation

• d7ab6f5 docs: update theme when when prefers-color-scheme changes (#18510) (Nitin Kumar)
• 525fdff docs: fix components files (#18519) (Tanuj Kanti)
• 80747d2 docs: refactor prefer-destructuring rule (#18472) (Tanuj Kanti)
• f06e0b5 docs: clarify func-style (#18477) (Cameron Steffen)

Chores

• 010dd2e chore: upgrade to @eslint/[email protected] (#18534) (Francesco Trotta)
• 5e1b5dc chore: package.json update for @eslint/js release (Jenkins)
• 594145f refactor: switch to @eslint/config-array (#18527) (Francesco Trotta)

Features

• b32153c feat: add overrides.namedExports to func-style rule (#18444) (Percy Ma)
• b67eba4 feat: add restrictedNamedExportsPattern to no-restricted-exports (#18431) (Akul Srivastava)
• 069aa68 feat: add option allowEscape to no-misleading-character-class rule (#18208) (Francesco Trotta)
• 05ef92d feat: deprecate multiline-comment-style & line-comment-position (#18435) (唯然)
• db0b174 feat: add enforceForInnerExpressions option to no-extra-boolean-cast (#18222) (Kirk Waiblinger)

Bug Fixes

• 8db0eff fix: Improve config error messages (#18457) (Nicholas C. Zakas)
• 5c28d9a fix: don't remove comments between key and value in object-shorthand (#18442) (Kuba Jastrzębski)
• 39fb0ee fix: object-shorthand loses type parameters when auto-fixing (#18438) (dalaoshu)
• 37eba48 fix: don't crash when fs.readFile returns promise from another realm (#18416) (Milos Djermanovic)

Documentation

• ceada8c docs: explain how to use "tsc waiting" label (#18466) (Francesco Trotta)
• 62e686c docs: Add troubleshooting info for plugin compatibility (#18451) (Nicholas C. Zakas)
• e17e1c0 docs: Update README (GitHub Actions Bot)
• 2465a1e docs: Update README (GitHub Actions Bot)
• d23574c docs: Clarify usage of no-unreachable with TypeScript (#18445) (benj-dobs)
• 1db9bae docs: Fix typos (#18443) (Frieder Bluemle)
• 7065196 docs: Update README (GitHub Actions Bot)
• 04e7c6e docs: update deprecation notice of no-return-await (#18433) (Tanuj Kanti)
• e763512 docs: Link global ignores section in config object property list (#18430) (MaoShizhong)
• ac7f718 docs: reflect release of v9 in config migration guide (#18412) (Peter Briggs)
• 0de0909 docs: fix grammar in configuration file resolution (#18419) (Mike McCready)

Chores

• 58e2719 chore: update dependencies for v9.3.0 release (#18469) (Francesco Trotta)
• b681ecb chore: package.json update for @eslint/js release (Jenkins)
• 06f1d1c chore: update dependency @humanwhocodes/retry to ^0.3.0 (#18463) (renovate[bot])
• a63ed72 refactor: Use node: protocol for built-in Node.js modules (#18434) (Milos Djermanovic)
• 040700a chore: update dependency markdownlint-cli to ^0.40.0 (#18425) (renovate[bot])
• f47847c chore: update actions/stale action to v9 (#18426) (renovate[bot])
• c18ad25 chore: update actions/upload-artifact action to v4 (#18427) (renovate[bot])
• 27e3060 chore: Disable documentation label (#18423) (Nicholas C. Zakas)

Features

• 8485d76 feat: no-case-declarations add suggestions (#18388) (Josh Goldberg ✨)
• a498f35 feat: update Unicode letter detection in capitalized-comments rule (#18375) (Francesco Trotta)

Bug Fixes

• eeec413 fix: do not throw when defining a global named defineSetter (#18364) (唯然)

Documentation

• 0f5df50 docs: Update README (GitHub Actions Bot)
• 1579ce0 docs: update wording regarding indirect eval (#18394) (Kirk Waiblinger)
• f12a02c docs: update to eslint v9 in custom-rule-tutorial (#18383) (唯然)

Chores

• b346605 chore: upgrade @eslint/[email protected] (#18413) (Milos Djermanovic)
• c4c18e0 chore: package.json update for @eslint/js release (Jenkins)
• 284722c chore: package.json update for eslint-config-eslint release (Jenkins)
• 347d44f chore: remove eslintrc export from eslint-config-eslint (#18400) (Milos Djermanovic)
• f316e20 ci: run tests in Node.js 22 (#18393) (Francesco Trotta)

Bug Fixes

• a26b402 fix: use @eslint/create-config latest (#18373) (唯然)

Features

• 03068f1 feat: Provide helpful error message for nullish configs (#18357) (Nicholas C. Zakas)
• 751b518 feat: replace dependency graphemer with Intl.Segmenter (#18110) (Francesco Trotta)
• 4d11e56 feat: add name to eslint configs (#18289) (唯然)
• 1cbe1f6 feat: allow while(true) in no-constant-condition (#18286) (Tanuj Kanti)
• 0db676f feat: add Intl in es6 globals (#18318) (唯然)

Bug Fixes

• 8d18958 fix: Remove name from eslint/js packages (#18368) (Nicholas C. Zakas)
• 594eb0e fix: do not crash on error in fs.walk filter (#18295) (Francesco Trotta)
• 0d8cf63 fix: EMFILE errors (#18313) (Nicholas C. Zakas)
• e1ac0b5 fix: --inspect-config only for flat config and respect -c (#18306) (Nicholas C. Zakas)
• 09675e1 fix: --no-ignore should not apply to non-global ignores (#18334) (Milos Djermanovic)

Documentation

• fb50077 docs: include notes about globals in migration-guide (#18356) (Gabriel Rohden)
• 71c771f docs: Fix missing accessible name for scroll-to-top link (#18329) (Germán Freixinós)
• 200fd4e docs: indicate eslintrc mode for .eslintignore (#18285) (Francesco Trotta)
• 16b6a8b docs: Update README (GitHub Actions Bot)
• df5f8a9 docs: paths and patterns difference in no-restricted-imports (#18273) (Tanuj Kanti)
• c537d76 docs: update npm init @eslint/config generated file names (#18298) (唯然)
• e1e305d docs: fix linebreak-style examples (#18262) (Francesco Trotta)
• 113f51e docs: Mention package.json config support dropped (#18305) (Nicholas C. Zakas)
• 5c35321 docs: add eslintrc-only note to --rulesdir (#18281) (Adam Lui 刘展鹏)

Build Related

• 1fa6622 build: do not use --force flag to install dependencies (#18284) (Francesco Trotta)

Chores

• d9a2983 chore: upgrade @eslint/js to v9.1.1 (#18367) (Francesco Trotta)
• 50d406d chore: package.json update for @eslint/js release (Jenkins)
• 155c71c chore: package.json update for @eslint/js release (Jenkins)
• 0588fc5 refactor: Move directive gathering to SourceCode (#18328) (Nicholas C. Zakas)
• 9048e21 chore: lint docs/src/_data js files (#18335) (Milos Djermanovic)
• 4820790 chore: upgrade [email protected] dev dependency (#18332) (Milos Djermanovic)
• 698d9ff chore: upgrade jsdoc & unicorn plugins in eslint-config-eslint (#18333) (Milos Djermanovic)
• 32c08cf chore: drop Node < 18 and use @eslint/js v9 in eslint-config-eslint (#18323) (Milos Djermanovic)
• a76fb55 chore: @eslint-community/eslint-plugin-eslint-comments v4.3.0 (#18319) (Milos Djermanovic)
• 78e45b1 chore: eslint-plugin-eslint-plugin v6.0.0 (#18316) (唯然)
• 36103a5 chore: eslint-plugin-n v17.0.0 (#18315) (唯然)

Breaking Changes

• b7cf3bd fix!: correct camelcase rule schema for allow option (#18232) (eMerzh)
• 09bd7fe feat!: move AST traversal into SourceCode (#18167) (Nicholas C. Zakas)
• 79a95eb feat!: disallow multiple configuration comments for same rule (#18157) (Milos Djermanovic)
• 9163646 feat!: Rule Tester checks for missing placeholder data in the message (#18073) (fnx)
• 3c4d51d feat!: default for enforceForClassMembers in no-useless-computed-key (#18054) (Francesco Trotta)
• 47e60f8 feat!: Stricter rule test validations (#17654) (fnx)
• 1a94589 feat!: no-unused-vars default caughtErrors to 'all' (#18043) (Josh Goldberg ✨)
• 57089cb feat!: no-restricted-imports allow multiple config entries for same path (#18021) (Milos Djermanovic)
• 2e1d549 feat!: detect duplicate test cases (#17955) (Bryan Mishkin)
• 701f1af feat!: no-inner-declaration new default behaviour and option (#17885) (Tanuj Kanti)
• bde5105 fix!: handle --output-file for empty output when saving to disk (#17957) (Nitin Kumar)
• 07107a5 fix!: upgrade [email protected] (#17942) (Milos Djermanovic)
• 3ee0f6c fix!: no-unused-vars varsIgnorePattern behavior with catch arguments (#17932) (Tanuj Kanti)
• 51f8bc8 fix!: configuration comments with just severity should retain options (#17945) (Milos Djermanovic)
• d191bdd feat!: Remove CodePath#currentSegments (#17936) (Milos Djermanovic)
• 946ae00 feat!: FlatRuleTester -> RuleTester (#17922) (Nicholas C. Zakas)
• baff28c feat!: remove no-inner-declarations from eslint:recommended (#17920) (Milos Djermanovic)
• cadfbcd feat!: Rename FlatESLint to ESLint (#17914) (Nicholas C. Zakas)
• d1018fc feat!: skip running warnings in --quiet mode (#17274) (Maddy Miller)
• fb81b1c feat!: Set default schema: [], drop support for function-style rules (#17792) (Milos Djermanovic)
• 0b21e1f feat!: add two more cases to no-implicit-coercion (#17832) (Gürgün Dayıoğlu)
• 2916c63 feat!: Switch Linter to flat config by default (#17851) (Nicholas C. Zakas)
• 200518e fix!: Parsing 'exported' comment using parseListConfig (#17675) (amondev)
• bdd6ba1 feat!: Remove valid-jsdoc and require-jsdoc (#17694) (Nicholas C. Zakas)
• 12be307 fix!: Behavior of CLI when no arguments are passed (#17644) (Nicholas C. Zakas)
• 8fe8c56 feat!: Update shouldUseFlatConfig and CLI so flat config is default (#17748) (Nicholas C. Zakas)
• 60dea3e feat!: deprecate no-new-symbol, recommend no-new-native-nonconstructor (#17710) (Francesco Trotta)
• 5aa9c49 feat!: check for parsing errors in suggestion fixes (#16639) (Bryan Mishkin)
• b3e0bb0 feat!: assert suggestion messages are unique in rule testers (#17532) (Josh Goldberg ✨)
• e563c52 feat!: no-invalid-regexp make allowConstructorFlags case-sensitive (#17533) (Josh Goldberg ✨)
• e5f02c7 fix!: no-sequences rule schema correction (#17878) (MHO)
• 6ee3e9e feat!: Update eslint:recommended configuration (#17716) (Milos Djermanovic)
• c2cf85a feat!: drop support for string configurations in flat config array (#17717) (Milos Djermanovic)
• c314fd6 feat!: Remove SourceCode#getComments() (#17715) (Milos Djermanovic)
• ae78ff1 feat!: Remove deprecated context methods (#17698) (Nicholas C. Zakas)
• f71c328 feat!: Swap FlatESLint-ESLint, FlatRuleTester-RuleTester in API (#17823) (Nicholas C. Zakas)
• 5304da0 feat!: remove formatters except html, json(-with-metadata), and stylish (#17531) (Josh Goldberg ✨)
• e1e827f feat!: Require Node.js ^18.18.0 || ^20.9.0 || >=21.1.0 (#17725) (Milos Djermanovic)

Features

• d54a412 feat: Add --inspect-config CLI flag (#18270) (Nicholas C. Zakas)
• 97ce45b feat: Add reportUsedIgnorePattern option to no-unused-vars rule (#17662) (Pearce Ropion)
• 3e9fcea feat: Show config names in error messages (#18256) (Nicholas C. Zakas)
• de40874 feat: Rule Performance Statistics for flat ESLint (#17850) (Mara Kiefer)
• d85c436 feat: use-isnan report NaN in indexOf and lastIndexOf with fromIndex (#18225) (Tanuj Kanti)
• b8fb572 feat: add reportUnusedFallthroughComment option to no-fallthrough rule (#18188) (Kirk Waiblinger)
• 1c173dc feat: add ignoreClassWithStaticInitBlock option to no-unused-vars (#18170) (Tanuj Kanti)
• a451b32 feat: make no-misleading-character-class report more granular errors (#18082) (Francesco Trotta)
• c49ed63 feat: update complexity rule for optional chaining & default values (#18152) (Mathias Schreck)
• 11144a2 feat: no-restricted-imports option added allowImportNames (#16196) (M Pater)
• 74124c2 feat: add suggestions to use-isnan in indexOf & lastIndexOf calls (#18063) (StyleShit)
• 53f0f47 feat: Add loadESLint() API method for v9 (#18097) (Nicholas C. Zakas)
• 2d11d46 feat: add suggestions to use-isnan in binary expressions (#17996) (StyleShit)
• 26093c7 feat: fix false negatives in no-this-before-super (#17762) (Yosuke Ota)
• 5471e43 feat: convert unsafe autofixes to suggestions in no-implicit-coercion (#17985) (Gürgün Dayıoğlu)
• e3051be feat: emit warning when .eslintignore file is detected (#17952) (Nitin Kumar)
• a630edd feat: maintain latest ecma version in ESLint (#17958) (Milos Djermanovic)
• b4e0503 feat: add no-useless-assignment rule (#17625) (Yosuke Ot...