chore(deps): update dependency eslint to v9

[elastic-renovate-prod]

This PR contains the following updates:

Package	Type	Update	Change
eslint (source)	devDependencies	major	7.24.0 -> 9.33.0

---

Release Notes

eslint/eslint (eslint)

v9.33.0

Compare Source

Features

• e07820e feat: add global object access detection to no-restricted-globals (#​19939) (sethamus)
• 90b050e feat: support explicit resource management in one-var (#​19941) (Sweta Tanwar)

Bug Fixes

• 732433c fix: allow any type for meta.docs.recommended in custom rules (#​19995) (Francesco Trotta)
• e8a6914 fix: Fixed potential bug in check-emfile-handling.js (#​19975) (諏訪原慶斗)

Documentation

• 34f0723 docs: playground button for TypeScript code example (#​19671) (Tanuj Kanti)
• dc942a4 docs: Update README (GitHub Actions Bot)
• 5a4b6f7 docs: Update no-multi-assign.md (#​19979) (Yuki Takada (Yukinosuke Takada))
• 247e156 docs: add missing let declarations in no-plusplus (#​19980) (Yuki Takada (Yukinosuke Takada))
• 0d17242 docs: Update README (GitHub Actions Bot)
• fa20b9d docs: Clarify when to open an issue for a PR (#​19974) (Nicholas C. Zakas)

Build Related

• 27fa865 build: use ESLint class to generate formatter examples (#​19972) (Milos Djermanovic)

Chores

• 4258046 chore: update dependency @​eslint/js to v9.33.0 (#​19998) (renovate[bot])
• ad28371 chore: package.json update for @​eslint/js release (Jenkins)
• 06a22f1 test: resolve flakiness in --mcp flag test (#​19993) (Pixel998)
• 54920ed test: switch to Linter.Config in ESLintRules type tests (#​19977) (Francesco Trotta)

v9.32.0

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Features

• 1245000 feat: support explicit resource management in core rules (#​19828) (fnx)
• 0e957a7 feat: support typescript types in accessor rules (#​19882) (fnx)

Bug Fixes

• 960fd40 fix: Upgrade @​eslint/js (#​19971) (Nicholas C. Zakas)
• bbf23fa fix: Refactor reporting into FileReport (#​19877) (Nicholas C. Zakas)
• d498887 fix: bump @​eslint/plugin-kit to 0.3.4 to resolve vulnerability (#​19965) (Milos Djermanovic)
• f46fc6c fix: report only global references in no-implied-eval (#​19932) (Nitin Kumar)
• 7863d26 fix: remove outdated types in ParserOptions.ecmaFeatures (#​19944) (ntnyq)
• 3173305 fix: update execScript message in no-implied-eval rule (#​19937) (TKDev7)

Documentation

• 86e7426 docs: Update README (GitHub Actions Bot)

Chores

• 50de1ce chore: package.json update for @​eslint/js release (Jenkins)
• 74f01a3 ci: unpin jiti to version ^2.5.1 (#​19970) (루밀LuMir)
• 2ab1381 ci: pin jiti to version 2.4.2 (#​19964) (Francesco Trotta)
• b7f7545 test: switch to flat config mode in SourceCode tests (#​19953) (Milos Djermanovic)
• f5a35e3 test: switch to flat config mode in eslint-fuzzer (#​19960) (Milos Djermanovic)
• e22af8c refactor: use CustomRuleDefinitionType in JSRuleDefinition (#​19949) (Francesco Trotta)
• e855717 chore: switch performance tests to hyperfine (#​19919) (Francesco Trotta)
• 2f73a23 test: switch to flat config mode in ast-utils tests (#​19948) (Milos Djermanovic)
• c565a53 chore: exclude further_reading_links.json from Prettier formatting (#​19943) (Milos Djermanovic)

v9.31.0

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Features

• 35cf44c feat: output full actual location in rule tester if different (#​19904) (ST-DDT)
• a6a6325 feat: support explicit resource management in no-loop-func (#​19895) (Milos Djermanovic)
• 4682cdc feat: support explicit resource management in no-undef-init (#​19894) (Milos Djermanovic)
• 5848216 feat: support explicit resource management in init-declarations (#​19893) (Milos Djermanovic)
• bb370b8 feat: support explicit resource management in no-const-assign (#​19892) (Milos Djermanovic)

Bug Fixes

• 07fac6c fix: retry on EMFILE when writing autofix results (#​19926) (TKDev7)
• 28cc7ab fix: Remove incorrect RuleContext types (#​19910) (Nicholas C. Zakas)

Documentation

• 664cb44 docs: Update README (GitHub Actions Bot)
• 40dbe2a docs: fix mismatch between globalIgnores() code and text (#​19914) (MaoShizhong)
• 5a0069d docs: Update README (GitHub Actions Bot)
• fef04b5 docs: Update working on issues info (#​19902) (Nicholas C. Zakas)

Chores

• 3ddd454 chore: upgrade to @eslint/[email protected] (#​19935) (Francesco Trotta)
• d5054e5 chore: package.json update for @​eslint/js release (Jenkins)
• 0f4a378 chore: update eslint (#​19933) (renovate[bot])
• 76c2340 chore: bump mocha to v11 (#​19917) (루밀LuMir)

v9.30.1

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Bug Fixes

• e91bb87 fix: allow separate default and named type imports (#​19899) (xbinaryx)

Documentation

• ab7c625 docs: Update README (GitHub Actions Bot)
• dae1e5b docs: update jsdoc's link (#​19896) (JamesVanWaza)

Chores

• b035f74 chore: upgrade to @eslint/[email protected] (#​19906) (Francesco Trotta)
• b3dbc16 chore: package.json update for @​eslint/js release (Jenkins)

v9.30.0

Compare Source

Features

• 52a5fca feat: Support basePath property in config objects (#​19879) (Milos Djermanovic)
• 4ab4482 feat: add allowSeparateTypeImports option to no-duplicate-imports (#​19872) (sethamus)
• b8a7e7a feat: throw error when column is negative in getIndexFromLoc (#​19831) (루밀LuMir)

Bug Fixes

• 6a0f164 fix: handle null type loc in getIndexFromLoc method (#​19862) (루밀LuMir)
• 3fbcd70 fix: update error message for no-restricted-properties (#​19855) (Tanuj Kanti)
• 7ef4cf7 fix: remove unnecessary semicolon from fixes (#​19857) (Francesco Trotta)
• 7dabc38 fix: use process.version in --env-info (#​19865) (TKDev7)

Documentation

• 8662ed1 docs: adopt eslint-stylistic sub packages related changes (#​19887) (ntnyq)
• 20158b0 docs: typo in comment for unused variables handling (#​19870) (leopardracer)
• ebfb5b4 docs: Fixed Typo in configuration-files.md (#​19873) (0-20)
• 4112fd0 docs: clarify that boolean is still allowed for rule meta.deprecated (#​19866) (Bryan Mishkin)

Chores

• 2b6491c chore: upgrade to @eslint/[email protected] (#​19889) (Francesco Trotta)
• 5a5d526 chore: package.json update for @​eslint/js release (Jenkins)
• eaf8a41 chore: Correct typos in linter tests (#​19878) (kilavvy)

v9.29.0

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Features

• f686fcb feat: add ecmaVersion: 2026, parsing using and await using (#​19832) (Milos Djermanovic)
• 19cdd22 feat: prune suppressions for non-existent files (#​19825) (TKDev7)
• b3d720f feat: add ES2025 globals (#​19835) (fisker Cheung)
• 677a283 feat: add auto-accessor fields support to class-methods-use-this (#​19789) (sethamus)
• dbba058 feat: allow global type declaration in no-var (#​19714) (Remco Haszing)
• 342bd29 feat: ignore type annotations in no-restricted-globals (#​19781) (sethamus)
• 786bcd1 feat: add allowProperties option to no-restricted-properties (#​19772) (sethamus)
• 05b66d0 feat: add sourceCode.isGlobalReference(node) method (#​19695) (Nitin Kumar)

Bug Fixes

• 85c082c fix: explicit matching behavior with negated patterns and arrays (#​19845) (Milos Djermanovic)
• 9bda4a9 fix: fix LintOptions.filterCodeBlock types (#​19837) (ntnyq)
• 7ab77a2 fix: correct breaking deprecation of FlatConfig type (#​19826) (Logicer)
• 1ba3318 fix: add language and dialects to no-use-before-define (#​19808) (Francesco Trotta)

Documentation

• 00e3e6a docs: add support for custom name parameter to includeIgnoreFile (#​19795) (루밀LuMir)
• 3aed075 docs: Update README (GitHub Actions Bot)
• a2f888d docs: enhance documentation with links and fix typos (#​19761) (루밀LuMir)
• 53c3235 docs: update to clarify prompt usage (#​19748) (Jennifer Davis)

Chores

• 5c114c9 chore: upgrade @​eslint/js@​9.29.0 (#​19851) (Milos Djermanovic)
• acf2201 chore: package.json update for @​eslint/js release (Jenkins)
• a806994 refactor: Remove eslintrc from flat config functionality (#​19833) (Nicholas C. Zakas)
• 152ed51 test: switch to flat config mode in code path analysis tests (#​19824) (Milos Djermanovic)
• b647239 chore: Update first-party dependencies faster with Renovate (#​19822) (Nicholas C. Zakas)
• 7abe42e refactor: SafeEmitter -> SourceCodeVisitor (#​19708) (Nicholas C. Zakas)
• e392895 perf: improve time complexity of getLocFromIndex (#​19782) (루밀LuMir)
• 0ed289c chore: remove accidentally committed file (#​19807) (Francesco Trotta)

v9.28.0

Compare Source

Features

• b0674be feat: Customization of serialization for languageOptions (#​19760) (Nicholas C. Zakas)
• a95721f feat: Add --pass-on-unpruned-suppressions CLI option (#​19773) (Milos Djermanovic)
• bfd0e7a feat: support TypeScript syntax in no-use-before-define (#​19566) (Tanuj Kanti)
• 68c61c0 feat: support TS syntax in no-shadow (#​19565) (Nitin Kumar)
• 0f773ef feat: support TS syntax in no-magic-numbers (#​19561) (Nitin Kumar)
• c4a6b60 feat: add allowTypeAnnotation to func-style (#​19754) (sethamus)
• b03ad17 feat: add TypeScript support to prefer-arrow-callback (#​19678) (Tanuj Kanti)
• bc3c331 feat: ignore overloaded function declarations in func-style rule (#​19755) (sethamus)

Bug Fixes

• eea3e7e fix: Remove configured global variables from GlobalScope#implicit (#​19779) (Milos Djermanovic)
• a467de3 fix: update context.report types (#​19751) (Nitin Kumar)
• fd467bb fix: remove interopDefault to use jiti's default (#​19697) (sethamus)
• 72d16e3 fix: avoid false positive in no-unassigned-vars for declare module (#​19746) (Azat S.)
• 81c3c93 fix: curly types (#​19750) (Eli)

Documentation

• 3ec2082 docs: Nested arrays in files config entry (#​19799) (Nicholas C. Zakas)
• 89a65b0 docs: clarify how config arrays can apply to subsets of files (#​19788) (Shais Ch)
• 2ba8a0d docs: Add description of meta.namespace to plugin docs (#​19798) (Nicholas C. Zakas)
• 59dd7e6 docs: update func-style with examples (#​19793) (Tanuj Kanti)
• e9129e0 docs: add global scope's implicit field to Scope Manager docs (#​19770) (Milos Djermanovic)
• 52f5b7a docs: fix minor typos and add links (#​19743) (루밀LuMir)
• 00716a3 docs: upfront recommend against using the no-return-await rule (#​19727) (Mike DiDomizio)

Chores

• 175b7b8 chore: upgrade to @eslint/[email protected] (#​19802) (Francesco Trotta)
• 844f5a6 chore: package.json update for @​eslint/js release (Jenkins)
• 62b1c1b chore: update globals to v16 (#​19791) (Nitin Kumar)
• e8a1cb8 chore: ignore jiti-v2.0 & jiti-v2.1 for renovate (#​19786) (Nitin Kumar)
• 43d3975 chore: Add Copilot Instructions file (#​19753) (Nicholas C. Zakas)
• 2dfb5eb test: update SourceCodeTraverser tests (#​19763) (Milos Djermanovic)
• 5bc21f9 chore: add *.code-workspace to .gitignore (#​19771) (루밀LuMir)
• f4fa40e refactor: NodeEventGenerator -> SourceCodeTraverser (#​19679) (Nicholas C. Zakas)
• 0f49329 refactor: use a service to emit warnings (#​19725) (Francesco Trotta)
• 20a9e59 chore: update dependency shelljs to ^0.10.0 (#​19740) (renovate[bot])

v9.27.0

Compare Source

Features

• d71e37f feat: Allow flags to be set in ESLINT_FLAGS env variable (#​19717) (Nicholas C. Zakas)
• ba456e0 feat: Externalize MCP server (#​19699) (Nicholas C. Zakas)
• 07c1a7e feat: add allowRegexCharacters to no-useless-escape (#​19705) (sethamus)
• 7bc6c71 feat: add no-unassigned-vars rule (#​19618) (Jacob Bandes-Storch)
• ee40364 feat: convert no-array-constructor suggestions to autofixes (#​19621) (sethamus)
• 32957cd feat: support TS syntax in max-params (#​19557) (Nitin Kumar)

Bug Fixes

• 5687ce7 fix: correct mismatched removed rules (#​19734) (루밀LuMir)
• dc5ed33 fix: correct types and tighten type definitions in SourceCode class (#​19731) (루밀LuMir)
• de1b5de fix: correct service property name in Linter.ESLintParseResult type (#​19713) (Francesco Trotta)
• 60c3e2c fix: sort keys in eslint-suppressions.json to avoid git churn (#​19711) (Ron Waldon-Howe)
• 9da90ca fix: add allowReserved to Linter.ParserOptions type (#​19710) (Francesco Trotta)
• fbb8be9 fix: add info to ESLint.DeprecatedRuleUse type (#​19701) (Francesco Trotta)

Documentation

• 25de550 docs: Update description of frozen rules to mention TypeScript (#​19736) (Nicholas C. Zakas)
• bd5def6 docs: Clean up configuration files docs (#​19735) (Nicholas C. Zakas)
• 4d0c60d docs: Add Neovim to editor integrations (#​19729) (Maria José Solano)
• 71317eb docs: Update README (GitHub Actions Bot)
• 4c289e6 docs: Update README (GitHub Actions Bot)
• f0f0d46 docs: clarify that unused suppressions cause non-zero exit code (#​19698) (Milos Djermanovic)
• 8ed3273 docs: fix internal usages of ConfigData type (#​19688) (Francesco Trotta)
• eb316a8 docs: add fmt and check sections to Package.json Conventions (#​19686) (루밀LuMir)
• a3a2559 docs: fix wording in Combine Configs (#​19685) (Milos Djermanovic)
• c8d17e1 docs: Update README (GitHub Actions Bot)

Chores

• f8f1560 chore: upgrade @​eslint/js@​9.27.0 (#​19739) (Milos Djermanovic)
• ecaef73 chore: package.json update for @​eslint/js release (Jenkins)
• 596fdc6 chore: update dependency @​arethetypeswrong/cli to ^0.18.0 (#​19732) (renovate[bot])
• f791da0 chore: remove unbalanced curly brace from .editorconfig (#​19730) (Maria José Solano)
• e86edee refactor: Consolidate Config helpers (#​19675) (Nicholas C. Zakas)
• cf36352 chore: remove shared types (#​19718) (Francesco Trotta)
• f60f276 refactor: Easier RuleContext creation (#​19709) (Nicholas C. Zakas)
• 58a171e chore: update dependency @​eslint/plugin-kit to ^0.3.1 (#​19712) (renovate[bot])
• 3a075a2 chore: update dependency @​eslint/core to ^0.14.0 (#​19715) (renovate[bot])
• 44bac9d ci: run tests in Node.js 24 (#​19702) (Francesco Trotta)
• 35304dd chore: add missing funding field to packages (#​19684) (루밀LuMir)
• f305beb test: mock process.emitWarning to prevent output disruption (#​19687) (Francesco Trotta)

v9.26.0

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Features

• e9754e7 feat: add reportGlobalThis to no-shadow-restricted-names (#​19670) (sethamus)
• 0fa2b7a feat: add suggestions for eqeqeq rule (#​19640) (Nitin Kumar)
• dcbdcc9 feat: Add MCP server (#​19592) (Nicholas C. Zakas)
• 2dfd83e feat: add ignoreDirectives option in no-unused-expressions (#​19645) (sethamus)

Bug Fixes

• 96e84de fix: check cache file existence before deletion (#​19648) (sethamus)
• d683aeb fix: don't crash on tests with circular references in RuleTester (#​19664) (Milos Djermanovic)
• 9736d5d fix: add namespace to Plugin.meta type (#​19661) (Milos Djermanovic)
• 17bae69 fix: update RuleTester.run() type (#​19634) (Nitin Kumar)

Documentation

• dd98d63 docs: Update README (GitHub Actions Bot)
• c25e858 docs: Update README (GitHub Actions Bot)
• b2397e9 docs: Update README (GitHub Actions Bot)
• addd0a6 docs: fix formatting of unordered lists in Markdown (#​19660) (Milos Djermanovic)
• a21b38d docs: Update README (GitHub Actions Bot)
• c0721a7 docs: fix double space in command (#​19657) (CamWass)

Chores

• 5b247c8 chore: upgrade to @eslint/[email protected] (#​19681) (Francesco Trotta)
• d6fa4ac chore: package.json update for @​eslint/js release (Jenkins)
• 0958690 chore: disambiguate internal types LanguageOptions and Rule (#​19669) (Francesco Trotta)
• f1c858e chore: fix internal type references to Plugin and Rule (#​19665) (Francesco Trotta)
• 40dd299 refactor: One-shot ESQuery selector analysis (#​19652) (Nicholas C. Zakas)
• 1cfd702 chore: update dependency @​eslint/json to ^0.12.0 (#​19656) (renovate[bot])

v9.25.1

Compare Source

Bug Fixes

• cdc8e8c fix: revert directive detection in no-unused-expressions (#​19639) (sethamus)

Chores

• 1f2b057 chore: upgrade @​eslint/js@​9.25.1 (#​19642) (Milos Djermanovic)
• 771317f chore: package.json update for @​eslint/js release (Jenkins)

v9.25.0

Compare Source

Features

• dcd95aa feat: support TypeScript syntax in no-empty-function rule (#​19551) (sethamus)
• 77d6d5b feat: support TS syntax in no-unused-expressions (#​19564) (Sweta Tanwar)
• 90228e5 feat: support JSRuleDefinition type (#​19604) (루밀LuMir)
• 59ba6b7 feat: add allowObjects option to no-restricted-properties (#​19607) (sethamus)
• db650a0 feat: support TypeScript syntax in no-invalid-this rule (#​19532) (Tanuj Kanti)
• 9535cff feat: support TS syntax in no-loop-func (#​19559) (Nitin Kumar)

Bug Fixes

• 910bd13 fix: nodeTypeKey not being used in NodeEventGenerator (#​19631) (StyleShit)

Documentation

• ca7a735 docs: update no-undef-init when not to use section (#​19624) (Tanuj Kanti)
• 1b870c9 docs: use eslint-config-xo in the getting started guide (#​19629) (Nitin Kumar)
• 5d4af16 docs: add types for multiple rule options (#​19616) (Tanuj Kanti)
• e8f8d57 docs: Update README (GitHub Actions Bot)
• a40348f docs: no-use-before-define tweaks (#​19622) (Kirk Waiblinger)
• 0ba3ae3 docs: Update README (GitHub Actions Bot)
• 865dbfe docs: ensure "learn more" deprecation links point to useful resource (#​19590) (Kirk Waiblinger)
• f80b746 docs: add known limitations for no-self-compare (#​19612) (Nitin Kumar)
• 865aed6 docs: Update README (GitHub Actions Bot)

Chores

• 88dc196 chore: upgrade @​eslint/js@​9.25.0 (#​19636) (Milos Djermanovic)
• 345288d chore: package.json update for @​eslint/js release (Jenkins)
• affe6be chore: upgrade trunk (#​19628) (sethamus)
• dd20cf2 test: fix no-loop-func test with duplicate variable reports (#​19610) (Milos Djermanovic)
• bd05397 chore: upgrade @eslint/* dependencies (#​19606) (Milos Djermanovic)
• 22ea18b chore: replace invalid int type with number inside JSDocs. (#​19597) (Arya Emami)

v9.24.0

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Features

• 556c25b feat: support loading TS config files using --experimental-strip-types (#​19401) (Arya Emami)
• 72650ac feat: support TS syntax in init-declarations (#​19540) (Nitin Kumar)
• 03fb0bc feat: normalize patterns to handle "./" prefix in files and ignores (#​19568) (Pixel998)
• 071dcd3 feat: support TS syntax in no-dupe-class-members (#​19558) (Nitin Kumar)
• cd72bcc feat: Introduce a way to suppress violations (#​19159) (Iacovos Constantinou)
• 2a81578 feat: support TS syntax in no-loss-of-precision (#​19560) (Nitin Kumar)
• 30ae4ed feat: add new options to class-methods-use-this (#​19527) (sethamus)
• b79ade6 feat: support TypeScript syntax in no-array-constructor (#​19493) (Tanuj Kanti)

Bug Fixes

• b23d1c5 fix: deduplicate variable names in no-loop-func error messages (#​19595) (Nitin Kumar)
• fb8cdb8 fix: use any[] type for context.options (#​19584) (Francesco Trotta)

Documentation

• f857820 docs: update documentation for --experimental-strip-types (#​19594) (Nikolas Schröter)
• 803e4af docs: simplify gitignore path handling in includeIgnoreFile section (#​19596) (Thomas Broyer)
• 6d979cc docs: Update README (GitHub Actions Bot)
• 82177e4 docs: Update README (GitHub Actions Bot)
• e849dc0 docs: replace existing var with const (#​19578) (Sweta Tanwar)
• 0c65c62 docs: don't pass filename when linting rule examples (#​19571) (Milos Djermanovic)
• 6be36c9 docs: Update custom-rules.md code example of fixer (#​19555) (Yifan Pan)

Build Related

• 366e369 build: re-enable Prettier formatting for package.json files (#​19569) (Francesco Trotta)

Chores

• ef67420 chore: upgrade @​eslint/js@​9.24.0 (#​19602) (Milos Djermanovic)
• 4946847 chore: package.json update for @​eslint/js release (Jenkins)
• a995acb chore: correct 'flter'/'filter' typo in package script (#​19587) (Josh Goldberg ✨)
• b9a5efa test: skip symlink test on Windows (#​19503) (fisker Cheung)
• 46eea6d chore: remove Rule & FormatterFunction from shared/types.js (#​19556) (Nitin Kumar)
• bdcc91d chore: modify .editorconfig to keep parity with prettier config (#​19577) (Sweta Tanwar)
• 7790d83 chore: fix some typos in comment (#​19576) (todaymoon)
• 76064a6 test: ignore package-lock.json for eslint-webpack-plugin (#​19572) (Francesco Trotta)

v9.23.0

Compare Source

Features

• 557a0d2 feat: support TypeScript syntax in no-useless-constructor (#​19535) (Josh Goldberg ✨)
• 8320241 feat: support TypeScript syntax in default-param-last (#​19431) (Josh Goldberg ✨)
• 833c4a3 feat: defineConfig() supports "flat/" config prefix (#​19533) (Nicholas C. Zakas)
• 4a0df16 feat: circular autofix/conflicting rules detection (#​19514) (Milos Djermanovic)
• be56a68 feat: support TypeScript syntax in class-methods-use-this (#​19498) (Josh Goldberg ✨)

Bug Fixes

• 0e20aa7 fix: move deprecated RuleContext methods to subtype (#​19531) (Francesco Trotta)

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