chore(deps): update linters (major)

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint (source)	8.57.1 -> 9.21.0
eslint-config-prettier	9.1.0 -> 10.0.2

---

Release Notes

eslint/eslint (eslint)

v9.21.0

Compare Source

Features

• 418717f feat: introduce new deprecated types for rules (#​19238) (fnx)
• 5c5b802 feat: Add --ext CLI option (#​19405) (Milos Djermanovic)

Bug Fixes

• db5340d fix: update missing plugin message template (#​19445) (Milos Djermanovic)
• d8ffdd4 fix: do not exit process on rule crash (#​19436) (Francesco Trotta)

Documentation

• c5561ea docs: Update README (GitHub Actions Bot)
• 80b0485 docs: replace var with let and const in rule example (#​19434) (Tanuj Kanti)
• f67d5e8 docs: Update README (GitHub Actions Bot)
• 75afc61 docs: Update README (GitHub Actions Bot)
• 0636cab docs: Update Eleventy from v2 to v3 (#​19415) (Amaresh S M)
• dd7d930 docs: Update README (GitHub Actions Bot)

Chores

• a8c9a9f chore: update @eslint/eslintrc and @eslint/js (#​19453) (Francesco Trotta)
• 265e0cf chore: package.json update for @​eslint/js release (Jenkins)
• 3401b85 test: add test for Rule.ReportDescriptor type (#​19449) (Francesco Trotta)
• e497aa7 chore: update rewrite dependencies (#​19448) (Francesco Trotta)
• dab5478 chore: better error message for missing plugin in config (#​19402) (Tanuj Kanti)
• ebfe2eb chore: set js language for bug report issue config block (#​19439) (Josh Goldberg ✨)
• 5fd211d test: processors can return subpaths (#​19425) (Milos Djermanovic)

v9.20.1

Compare Source

Bug Fixes

• 274f054 fix: fix RuleContext type (#​19417) (Francesco Trotta)

Documentation

• fe3ccb2 docs: allow typing in search box while dropdown is open (#​19424) (Amaresh S M)
• 93c78a5 docs: Add instructions for pnpm compat (#​19422) (Nicholas C. Zakas)
• b476a93 docs: Fix Keyboard Navigation for Search Results (#​19416) (Amaresh S M)
• ccb60c0 docs: Update README (GitHub Actions Bot)

v9.20.0

Compare Source

Features

• e89a54a feat: change behavior of inactive flags (#​19386) (Milos Djermanovic)

Bug Fixes

• 91d4d9f fix: Bring types in sync with @​eslint/core (#​19157) (Nicholas C. Zakas)
• fa25c7a fix: Emit warning when empty config file is used (#​19399) (Nicholas C. Zakas)
• 31a9fd0 fix: Clearer error message for wrong plugin format (#​19380) (Nicholas C. Zakas)
• 61d99e3 fix: Better error message for unserializable parser (#​19384) (Nicholas C. Zakas)
• db1b9a6 fix: Ensure module scope is checked for references in consistent-this (#​19383) (Nicholas C. Zakas)
• 8bcd820 fix: arrow-body-style crash with single-token body (#​19379) (Milos Djermanovic)

Documentation

• b7012c8 docs: rewrite examples with var using let and const (#​19407) (Mueez Javaid Hashmi)
• 6406376 docs: Update README (GitHub Actions Bot)
• 350f2b9 docs: rewrite some examples with var using let and const (#​19404) (Mueez Javaid Hashmi)
• 93c325a docs: rewrite examples with var using let and const (#​19398) (Mueez Javaid Hashmi)
• 56ff404 docs: replace var with let or const in rules docs (#​19396) (Daniel Harbrueger)
• 4053226 docs: change sourceType in no-eval examples (#​19393) (Milos Djermanovic)
• 1324af0 docs: replace var with let and const in rules docs (#​19392) (Daniel Harbrueger)
• 8b87e00 docs: replace var with const and let in rules (#​19389) (Tanuj Kanti)
• 758c66b docs: Explain what frozen rules mean (#​19382) (Nicholas C. Zakas)
• 0ef8bb8 docs: additional checks for rule examples (#​19358) (Milos Djermanovic)
• 58ab2f6 docs: fix order of installation steps in getting started (#​19326) (Tanuj Kanti)

Chores

• 979097a chore: upgrade @​eslint/js@​9.20.0 (#​19412) (Francesco Trotta)
• 031734e chore: package.json update for @​eslint/js release (Jenkins)
• d4c47c3 test: avoid empty config warning in test output (#​19408) (Milos Djermanovic)
• 67dd82a chore: update dependency @​eslint/json to ^0.10.0 (#​19387) (renovate[bot])
• 15ac0e1 chore: add permissions: read-all to stale.yml workflow (#​19374) (Josh Goldberg ✨)

v9.19.0

Compare Source

Features

• 1637b8e feat: add --report-unused-inline-configs (#​19201) (Josh Goldberg ✨)

Bug Fixes

• aae6717 fix: sync rule type header comments automatically (#​19276) (Francesco Trotta)

Documentation

• cfea9ab docs: Clarify overrideConfig option (#​19370) (Nicholas C. Zakas)
• 2b84f66 docs: Update README (#​19362) (Nicholas C. Zakas)
• 044f93c docs: clarify frozen rule description (#​19351) (Pavel)
• 797ee7c docs: fix Bluesky links (#​19368) (Milos Djermanovic)
• 81a9c0e docs: Update README (GitHub Actions Bot)
• 093fb3d docs: replace var with let and const in rule examples (#​19365) (Tanuj Kanti)
• 417de32 docs: replace var with const in rule examples (#​19352) (jj)
• 17f2aae docs: update getting-started config to match default generated config (#​19308) (0xDev)
• 8a0a5a8 docs: better global ignores instruction (#​19297) (Jacopo Marrone)
• 6671a2c docs: Update README (GitHub Actions Bot)
• e39d3f2 docs: fix divider for rule category (#​19264) (Tanuj Kanti)
• e0cf53f docs: fix search result box position for small screens (#​19328) (Tanuj Kanti)
• f92a680 docs: replace var with let or const in rule examples (#​19331) (Ravi Teja Kolla)
• b04b84b docs: revert accidental changes in TS config files docs (#​19336) (Francesco Trotta)

Chores

• 9b9cb05 chore: upgrade @​eslint/js@​9.19.0 (#​19371) (Milos Djermanovic)
• 58560e7 chore: package.json update for @​eslint/js release (Jenkins)
• 2089707 test: fix failing test in Node.js v22.13.0 (#​19345) (Francesco Trotta)

v9.18.0

Compare Source

Features

• e84e6e2 feat: Report allowed methods for no-console rule (#​19306) (Anna Bocharova)
• 8efc2d0 feat: unflag TypeScript config files (#​19266) (Francesco Trotta)
• 87a9352 feat: check imports and class names in no-shadow-restricted-names (#​19272) (Milos Djermanovic)

Bug Fixes

• da768d4 fix: correct overrideConfigFile type (#​19289) (Francesco Trotta)

Documentation

• d9c23c5 docs: replace var with const in rule examples (#​19325) (Tanuj Kanti)
• 8e1a898 docs: add tabs to cli code blocks (#​18784) (Jay)
• f3aeefb docs: rewrite using let and const in rule examples (#​19320) (PoloSpark)
• 0b680b3 docs: Update README (GitHub Actions Bot)
• 98c86a9 docs: Edit this page button link to different branches (#​19228) (Tanuj Kanti)
• 6947901 docs: remove hardcoded edit link (#​19323) (Milos Djermanovic)
• 03f2f44 docs: rewrite var with const in rules examples (#​19317) (Thiago)
• 26c3003 docs: Clarify dangers of eslint:all (#​19318) (Nicholas C. Zakas)
• c038257 docs: add eqeqeq in related rules to no-eq-null (#​19310) (루밀LuMir)
• 89c8fc5 docs: rewrite examples with var using let and const (#​19315) (Amaresh S M)
• db574c4 docs: add missing backticks to no-void (#​19313) (루밀LuMir)
• 8d943c3 docs: add missing backticks to default-case-last (#​19311) (루밀LuMir)
• 36ef8bb docs: rewrite examples with var using let and const (#​19298) (Amaresh S M)
• 1610c9e docs: add missing backticks to no-else-return (#​19309) (루밀LuMir)
• df409d8 docs: Update README (GitHub Actions Bot)
• 2e84213 docs: Fix Horizontal Scroll Overflow in Rule Description on Mobile View (#​19304) (Amaresh S M)
• 6e7361b docs: replace var with let and const in rule example (#​19302) (Tanuj Kanti)
• 069af5e docs: rewrite var using const in rule examples (#​19303) (Kim GyeonWon)
• 064e35d docs: remove 'I hope to' comments from scope-manager-interface (#​19300) (Josh Goldberg ✨)
• 8e00305 docs: replace var with const in rule examples (#​19299) (Tanuj Kanti)
• a559009 docs: Add warning about extending core rules (#​19295) (Nicholas C. Zakas)
• 0bfdf6c docs: Update README (GitHub Actions Bot)
• ce0b9ff docs: add navigation link for code explorer (#​19285) (Tanuj Kanti)
• e255cc9 docs: add bluesky icon to footer (#​19290) (Tanuj Kanti)
• 5d64851 docs: remove outdated info about environments (#​19296) (Francesco Trotta)
• eec01f0 docs: switch rule examples config format to languageOptions (#​19277) (Milos Djermanovic)
• b36ca0a docs: Fixing Focus Order by Rearranging Element Sequence (#​19241) (Amaresh S M)
• d122c8a docs: add missing backticks to sort-imports (#​19282) (루밀LuMir)
• 0367a70 docs: update custom parser docs (#​19288) (Francesco Trotta)
• 8c07ebb docs: add border-radius to hX:target selector styles (#​19270) (루밀LuMir)
• eff7c57 docs: add limitation section in no-loop-func (#​19287) (Tanuj Kanti)
• 5db226f docs: add missing backticks in various parts of the documentation (#​19269) (루밀LuMir)
• 789edbb docs: Update README (GitHub Actions Bot)
• 613c06a docs: mark rules that are frozen with ❄️ (#​19231) (Amaresh S M)
• 43172ec docs: Update README (GitHub Actions Bot)
• ac8b3c4 docs: fix description of overrideConfigFile option (#​19262) (Milos Djermanovic)
• bbb9b46 docs: Update README (GitHub Actions Bot)
• 995b492 docs: fix inconsistent divider in rule categories box (#​19249) (Tanuj Kanti)
• f76d05d docs: Refactor search result handling with better event listener cleanup (#​19252) (Amaresh S M)
• c5f3d7d docs: Update README (GitHub Actions Bot)

Chores

• c52be85 chore: upgrade to @eslint/js@9.18.0 (#​19330) (Francesco Trotta)
• 362099c chore: package.json update for @​eslint/js release (Jenkins)
• 495aa49 chore: extract package name from package.json for public interface (#​19314) (루밀LuMir)
• 6fe0e72 chore: update dependency @​eslint/json to ^0.9.0 (#​19263) (renovate[bot])

v9.17.0

Compare Source

Features

• eed91d1 feat: add suggestions to no-unused-vars (#​18352) (Tanuj Kanti)

Bug Fixes

• 67d683d fix: fix crash when message.fix is nullish (#​19168) (ntnyq)
• c618707 fix: ignore vars with non-identifier references in no-useless-assignment (#​19200) (YeonJuan)

Documentation

• 3c22d2a docs: update yoda to Yoda in yoda.md for consistency (#​19230) (루밀LuMir)
• e0a2203 docs: add missing backticks to no-sequences (#​19233) (루밀LuMir)
• 4cc4881 docs: Update README (GitHub Actions Bot)
• 3db6fdf docs: [no-await-in-loop] expand on benefits and inapplicability (#​19211) (Kirk Waiblinger)
• bf2a4f6 docs: add missing backticks to func-style (#​19227) (루밀LuMir)
• ba098bd docs: add missing header to prefer-spread (#​19224) (루밀LuMir)
• b607ae6 docs: update description of no-param-reassign (#​19220) (루밀LuMir)
• 1eb424d docs: add missing backticks to prefer-destructuring (#​19223) (루밀LuMir)
• 85998d1 docs: add missing backticks to no-unneeded-ternary (#​19222) (루밀LuMir)
• b75b32c docs: add missing backticks to no-new-func (#​19219) (루밀LuMir)
• a7700bc docs: add missing backticks to id-length (#​19217) (루밀LuMir)
• e2bb429 docs: add missing backticks to complexity.md (#​19214) (루밀LuMir)
• 045d716 docs: add missing ) to id-denylist (#​19213) (루밀LuMir)
• 7fe4114 docs: Update README (GitHub Actions Bot)
• c743ba6 docs: add CSS language to no-restricted-syntax (#​19208) (Milos Djermanovic)
• 1416d70 docs: add missing backticks to eqeqeq (#​19207) (루밀LuMir)
• b950c1b docs: add missing backticks to prefer-object-spread (#​19206) (루밀LuMir)
• 8a941cb docs: update docs and description of require-unicode-regexp (#​19205) (루밀LuMir)
• cbab228 docs: Update README (GitHub Actions Bot)
• f2257ce docs: update comments and description of no-script-url (#​19203) (루밀LuMir)
• 365f0f4 docs: add missing backtick to default-case-last (#​19202) (루밀LuMir)
• e6b84f5 docs: add missing punctuation in document (#​19161) (루밀LuMir)
• c88708e docs: replace quote with backtick in description of for-direction (#​19199) (루밀LuMir)
• a76f233 docs: use higher contrast color tokens for code comments (#​19187) (Josh Goldberg ✨)
• db19502 docs: Update README (GitHub Actions Bot)

Chores

• cc243c9 chore: upgrade to @eslint/js@9.17.0 (#​19242) (Francesco Trotta)
• 84c5787 chore: package.json update for @​eslint/js release (Jenkins)
• 4c4f53b chore: add missing backticks to flags.js (#​19226) (루밀LuMir)
• 4b3132c chore: update dependency eslint-plugin-expect-type to ^0.6.0 (#​19221) (renovate[bot])
• 9bf2204 chore: add type definitions for the eslint-config-eslint package (#​19050) (Arya Emami)
• ee8c220 chore: fix incorrect name property in integration-tutorial-code (#​19218) (루밀LuMir)
• cca801d chore: Upgrade cross-spawn to 7.0.6 (#​19185) (folortin)

v9.16.0

Compare Source

Features

• 8f70eb1 feat: Add ignoreComputedKeys option in sort-keys rule (#​19162) (Milos Djermanovic)

Documentation

• 9eefc8f docs: fix typos in use-isnan (#​19190) (루밀LuMir)
• 0c8cea8 docs: switch the order of words in no-unreachable (#​19189) (루밀LuMir)
• 0c19417 docs: add missing backtick to no-async-promise-executor (#​19188) (루밀LuMir)
• 8df9276 docs: add backtick in -0 in description of no-compare-neg-zero (#​19186) (루밀LuMir)
• 7e16e3f docs: fix caseSensitive option's title of sort-keys (#​19183) (Tanuj Kanti)
• 0c6b842 docs: fix typos in migration-guide.md (#​19180) (루밀LuMir)
• 353266e docs: fix a typo in debug.md (#​19179) (루밀LuMir)
• 5ff318a docs: delete unnecessary horizontal rule(---) in nodejs-api (#​19175) (루밀LuMir)
• 576bcc5 docs: mark more rules as handled by TypeScript (#​19164) (Tanuj Kanti)
• 742d054 docs: note that no-restricted-syntax can be used with any language (#​19148) (Milos Djermanovic)

Chores

• feb703b chore: upgrade to @eslint/js@9.16.0 (#​19195) (Francesco Trotta)
• df9bf95 chore: package.json update for @​eslint/js release (Jenkins)
• f831893 chore: add type for ignoreComputedKeys option of sort-keys (#​19184) (Tanuj Kanti)
• 3afb8a1 chore: update dependency @​eslint/json to ^0.8.0 (#​19177) (Milos Djermanovic)
• 1f77c53 chore: add repository.directory property to package.json (#​19165) (루밀LuMir)
• d460594 chore: update dependency @​arethetypeswrong/cli to ^0.17.0 (#​19147) (renovate[bot])
• 45cd4ea refactor: update default options in rules (#​19136) (Milos Djermanovic)

v9.15.0

Compare Source

Features

• 01557ce feat: Implement Language#normalizeLanguageOptions() (#​19104) (Nicholas C. Zakas)
• 2edc0e2 feat: add meta.defaultOptions (#​17656) (Josh Goldberg ✨)
• bdec50e feat: fix no-useless-computed-key false negative with __proto__ (#​19123) (Milos Djermanovic)
• 3087c9e feat: add meta object to @eslint/js plugin (#​19095) (Francesco Trotta)

Bug Fixes

• fd33f13 fix: update types for no-restricted-imports rule (#​19060) (Nitin Kumar)
• bd35098 fix: switch away from Node.js node:assert and AssertionError (#​19082) (Josh Goldberg ✨)
• 9db5b15 fix: unsafe report for no-lonely-if (#​19087) (Abraham Guo)
• 68fa497 fix: ignore files on a different drive on Windows (#​19069) (Francesco Trotta)
• 4ce625a fix: upgrade @​humanwhocodes/retry@​0.4.1 to avoid debug logs (#​19102) (Milos Djermanovic)

Documentation

• d927920 docs: fix styles in no-js mode (#​18916) (Tanuj Kanti)
• 09bc2a8 docs: Update README (GitHub Actions Bot)
• 39089c8 docs: add no-useless-computed-key examples with object patterns (#​19109) (Milos Djermanovic)
• 895c60f docs: add missing messageId property and suggestion properties (#​19122) (fnx)
• 298625e docs: Change CLI -c to use flat config (#​19103) (Nicholas C. Zakas)
• 522d8a3 docs: add deprecation on indent, quotes and semi rule types (#​19090) (Marco Pasqualetti)

Chores

• 2967d91 chore: upgrade @​eslint/js@​9.15.0 (#​19133) (Milos Djermanovic)
• b441bee chore: package.json update for @​eslint/js release (Jenkins)
• 7d6bf4a chore: upgrade @​eslint/core@​0.9.0 (#​19131) (Milos Djermanovic)
• 902e707 chore: upgrade @​eslint/plugin-kit@​0.2.3 (#​19130) (Milos Djermanovic)
• 5ff6c1d chore: bump cross-spawn (#​19125) (Ian Bobinac)
• cceccc7 chore: update dependency @​eslint/json to ^0.6.0 (#​19117) (renovate[bot])
• 0da3f73 chore: update algolia referrer (#​19114) (Strek)
• 4f08332 ci: unpin trunk-io/trunk-action (#​19108) (Francesco Trotta)
• 6b75683 perf: optimize text-table by replacing regex with trimEnd (#​19061) (Nitin Kumar)

v9.14.0

Compare Source

Features

• 3fa009f feat: add support for Import Attributes and RegExp Modifiers (#​19076) (Milos Djermanovic)
• b0faee3 feat: add types for the @eslint/js package (#​19010) (Nitin Kumar)

Bug Fixes

• 24d0172 fix: enable retry concurrency limit for readFile() (#​19077) (Nicholas C. Zakas)
• b442067 fix: Don't crash when directory is deleted during traversal. (#​19067) (Nicholas C. Zakas)
• d474443 fix: avoid call stack overflow while processing globs (#​19035) (Livia Medeiros)

Documentation

• 151c965 docs: update context.languageOptions.parser description (#​19084) (Nitin Kumar)
• dc34f94 docs: Update README (GitHub Actions Bot)
• f16e846 docs: Update README (GitHub Actions Bot)
• ee0a77e docs: change link from @​types/eslint to lib/types (#​19049) (Karl Horky)
• 50f03a1 docs: Clarify global ignores in config migration guide (#​19032) (Milos Djermanovic)

Build Related

• 37c9177 build: update @wdio/* dependencies (#​19068) (Francesco Trotta)
• 35a8858 build: exclude flawed dendency versions (#​19065) (Francesco Trotta)

Chores

• f36cb16 chore: upgrade @​eslint/js@​9.14.0 (#​19086) (Milos Djermanovic)
• 28be447 chore: package.json update for @​eslint/js release (Jenkins)
• f48a2a0 test: add no-invalid-regexp tests with RegExp Modifiers (#​19075) (Milos Djermanovic)
• 425202e perf: Fix caching in config loaders (#​19042) (Milos Djermanovic)
• 3d44b3c ci: run tests in Node.js 23 (#​19055) (Francesco Trotta)
• 7259627 test: ensure tmp directory cleanup in check-emfile-handling.js (#​19036) (Livia Medeiros)

v9.13.0

Compare Source

Features

• 381c32b feat: Allow languages to provide defaultLanguageOptions (#​19003) (Milos Djermanovic)
• bf723bd feat: Improve eslintrc warning message (#​19023) (Milos Djermanovic)
• 1def4cd feat: drop support for jiti v1.21 (#​18996) (Francesco Trotta)
• f879be2 feat: export ESLint.defaultConfig (#​18983) (Nitin Kumar)

Bug Fixes

• 78836d4 fix: update the complexity rule type (#​19027) (Nitin Kumar)
• 064c8b6 fix: update rule types (#​18925) (Nitin Kumar)

Documentation

• abdbfa8 docs: mark LintMessage#nodeType as deprecated (#​19019) (Nitin Kumar)
• 19e68d3 docs: update deprecated rules type definitions (#​19018) (Nitin Kumar)
• 7dd402d docs: Update examples of passing multiple values to a CLI option (#​19006) (Milos Djermanovic)
• 5dcbc51 docs: Add example with side-effect imports to no-restricted-imports (#​18997) (Milos Djermanovic)
• 1ee87ca docs: Update README (GitHub Actions Bot)
• 2c3dbdc docs: Use prerendered sponsors for README (#​18988) (Milos Djermanovic)

Chores

• 68d2d9d chore: upgrade to @eslint/js@9.13.0 and @eslint/core@^0.7.0 (#​19034) (Francesco Trotta)
• 2211f0a chore: package.json update for @​eslint/js release (Jenkins)
• c7abaef perf: using Node.js compile cache (#​19012) (唯然)
• 1d7c077 chore: add pkg.type "commonjs" (#​19011) (唯然)
• 468e3bd test: fix ESLint tests (#​19021) (Francesco Trotta)
• ed4635f ci: upgrade knip@5.32.0 (#​18992) (Milos Djermanovic)
• efad767 chore: remove unused ignore dependency (#​18993) (Amaresh S M)

v9.12.0

Compare Source

Features

• 5a6a053 feat: update to jiti v2 (#​18954) (Arya Emami)
• 17a07fb feat: Hooks for test cases (RuleTester) (#​18771) (Anna Bocharova)
• 2ff0e51 feat: Implement alternate config lookup (#​18742) (Nicholas C. Zakas)
• 2d17453 feat: Implement modified cyclomatic complexity (#​18896) (Dmitry Pashkevich)

Bug Fixes

• [ea380ca](https://redirect.github.com/esli

---

Configuration

📅 Schedule: Branch creation - "before 4am on monday" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.