release(apps): oxlint v1.42.0 && oxfmt v0.27.0

[Boshen]

Oxlint

💥 BREAKING CHANGES

• 777fc40 ast: [BREAKING] Add Ident type (feat(ast)!: add Ident type #18354) (Boshen)

🚀 Features

• 34c3ec3 linter/prefer-logical-operator-over-ternary: Implement fixer (feat(linter/prefer-logical-operator-over-ternary): implement fixer #18545) (camc314)
• 019e0aa linter/valid-typeof: Add suggestions if type is misspelled (feat(linter/valid-typeof): add suggestions if type is misspelled #18543) (camchenry)
• 704c8eb linter/use-isnan: Add more specific error message for equality/inequality (feat(linter/use-isnan): add more specific error message for equality/inequality #18542) (camchenry)
• 1e99ace linter/use-isnan: Support more indexOf cases and improve diagnostic messages (feat(linter/use-isnan): Support more indexOf cases and improve diagnostic messages #18537) (camchenry)
• bffd134 linter/text-encoding-identifier-case: Add withDash option (feat(linter/text-encoding-identifier-case): add withDash option #18533) (camc314)
• 993fd2b parser: Parse unambiguous await with better error messages (feat(parser): parse unambiguous await with better error messages #18480) (Boshen)
• b4b6247 linter/plugins: RuleTester support settings (feat(linter/plugins): RuleTester support settings #18445) (overlookmotel)
• 15d69dc linter: Implement react/display-name rule (feat(linter): implement react/display-name rule #18426) (camchenry)
• 2fbceae linter: Implement rule docs and config support for rules with tuple config options. (feat(linter): Implement rule docs and config support for rules with tuple config options. #18372) (connorshea)
• 8db0e78 linter/plugins: Handle BOMs (feat(linter/plugins): handle BOMs #18376) (overlookmotel)
• 6ac09e2 linter/plugins: Support source text not being at start of buffer (feat(linter/plugins): support source text not being at start of buffer #18375) (overlookmotel)
• fc3c86b linter: Update 125 rules to raise errors when provided with invalid config options. (feat(linter): Update 125 rules to raise errors when provided with invalid config options. #18104) (connorshea)
• 2cc6ad2 linter/plugins: Add ecmaFeatures to parserOptions (feat(linter/plugins): add ecmaFeatures to parserOptions #18313) (overlookmotel)

🐛 Bug Fixes

• 2acf568 linter/plugins: Keep Infinity in rule default options (fix(linter/plugins): keep Infinity in rule default options #18550) (overlookmotel)
• 332d2ef linter/plugins: Add jsx property to parserOptions.ecmaFeatures (fix(linter/plugins): add jsx property to parserOptions.ecmaFeatures #18549) (overlookmotel)
• 7d9bb1b linter: Update eslint/func-names to error on invalid rule config options, improve docs. (fix(linter): Update eslint/func-names to error on invalid rule config options, improve docs. #18510) (connorshea)
• 9c67974 linter: Improve the jsx-a11y/no-noninteractive-tabindex rule to match original rule logic better (fix(linter): Improve the jsx-a11y/no-noninteractive-tabindex rule to match original rule logic better #17848) (connorshea)
• 75e7163 vscode: Support json5 for oxfmt (fix(vscode): support json5 for oxfmt #18502) (Sysix)
• c205b0d ast: Remove ThisExpression from TSModuleReference (fix(ast): remove ThisExpression from TSModuleReference #18489) (Boshen)
• c51339a oxlint/lsp: Respect code action source.fixAll as an alias for source.fixAll.oxc (fix(oxlint/lsp): respect code action source.fixAll as an alias for source.fixAll.oxc #18366) (Sysix)
• 3c0e9b9 oxlint/lsp: Skip dangerous fixes/suggestions for "fix all" code action and command (fix(oxlint/lsp): skip dangerous fixes/suggestions for "fix all" code action and command #18364) (Sysix)
• c44c093 linter: Fix behavior of unicorn/catch-error-name to match original rule (fix(linter): Fix behavior of unicorn/catch-error-name to match original rule #18209) (connorshea)
• 9c65aff linter/jsx-a11y: Change no-autofocus autofix to suggestion (fix(linter/jsx-a11y): change no-autofocus autofix to suggestion #18155) (Ben Lowery)
• 235c820 linter/unicorn: Fix prefer-array-some autofix for .filter().length pattern (fix(linter/unicorn): fix prefer-array-some autofix for .filter().length pattern #18153) (Ben Lowery)
• a9925dc linter: Mark fixes in unicorn/no-null rule as dangerous. (fix(linter): Mark fixes in unicorn/no-null rule as dangerous. #18436) (connorshea)
• cee29b4 linter: Remove confusing scope from react/only-export-components rule diagnostics. (fix(linter): Remove confusing scope from react/only-export-components rule diagnostics. #18434) (connorshea)
• aed3669 parser: Parse HTML-like comments in unambiguous mode (fix(parser): parse HTML-like comments in unambiguous mode #18442) (Boshen)
• b8a371d linter: Fix the path used in the gitlab format output (fix(linter): Fix the path used in the gitlab format output #18165) (connorshea)
• e046ea6 linter: vue/no-lifecycle-after-await skip looking into arrow functions (fix(linter): vue/no-lifecycle-after-await skip looking into arrow functions #18302) (Sysix)
• a9bfbcf linter: Compatibility issue with DiagnosticData type in ESLint (fix(linter): compatibility issue with DiagnosticData type in ESLint #18396) (루밀LuMir)
• 10ab424 linter: react/no_array_index_key continue search for other attributes (fix(linter): react/no_array_index_key continue search for other attributes #18409) (Lonami)
• 9d776d4 linter: Update import/no-cycle rule to error on invalid config options. (fix(linter): Update import/no-cycle rule to error on invalid config options. #18330) (connorshea)
• c163231 linter: Update eslint/sort-imports to validate options. (fix(linter): Update eslint/sort-imports to validate options. #18378) (connorshea)
• 79bbcff linter: Update eslint/func-style to error on invalid configuration options. (fix(linter): Update eslint/func-style to error on invalid configuration options. #18390) (connorshea)
• b871235 linter/plugins: Fix identifying "use strict" directives in scope analysis (fix(linter/plugins): fix identifying "use strict" directives in scope analysis #18402) (overlookmotel)
• 5985141 linter: Update jest/prefer-lowercase-title rule to error on invalid config options. (fix(linter): Update jest/prefer-lowercase-title rule to error on invalid config options. #18332) (connorshea)
• faca4b5 linter/plugins: Tokenize let, static and yield as Keywords (fix(linter/plugins): tokenize let, static and yield as Keywords #18368) (overlookmotel)
• a3914fd linter/plugins: Allow line number passed to report to be 1 over line count (fix(linter/plugins): allow line number passed to report to be 1 over line count #18341) (overlookmotel)
• 88e0896 linter: Update typescript/no-restricted-types rule to error on invalid config options. (fix(linter): Update typescript/no-restricted-types rule to error on invalid config options. #18329) (connorshea)
• 9eec600 linter: Update react/jsx-fragments rule to raise an error on invalid configuration options (fix(linter): Update react/jsx-fragments rule to raise an error on invalid configuration options #18111) (connorshea)
• 0fa969d linter: Update react/no-will-update-set-state to error on invalid config options (fix(linter): Update react/no-will-update-set-state to error on invalid config options #18112) (connorshea)
• 70e7be4 linter: Update import/no-unassigned-import to raise an error when passed invalid config options. (fix(linter): Update import/no-unassigned-import to raise an error when passed invalid config options. #18108) (connorshea)
• 496cac7 linter: Update unicorn/explicit-length-check to raise an error when passed invalid config options. (fix(linter): Update unicorn/explicit-length-check to raise an error when passed invalid config options. #18107) (connorshea)
• 080b1ec linter: Update 5 more rules to error on invalid config options. (fix(linter): Update 5 more rules to error on invalid config options. #18113) (connorshea)
• c5d05dd linter: Update 11 rules to raise an error on invalid config options. (fix(linter): Update 11 rules to raise an error on invalid config options. #18109) (connorshea)
• 9e359d4 linter/plugins: Set all properties on global vars objects (fix(linter/plugins): set all properties on global vars objects #18317) (overlookmotel)
• 39c7f32 linter/plugins: Set writeable flag on variables where defined as globals (fix(linter/plugins): set writeable flag on variables where defined as globals #18316) (overlookmotel)
• a570693 linter/plugins: Fix CatchClause scopes (fix(linter/plugins): fix CatchClause scopes #18312) (overlookmotel)
• 8c98e69 linter: vitest/prefer-describe-function-title: Check earlier to avoid false positive (fix(linter): vitest/prefer-describe-function-title: Check earlier to avoid false positive #18177) (Jovi De Croock)
• 44be0eb linter/plugins: Set scope analyse settings based on source type (fix(linter/plugins): set scope analyse settings based on source type #18306) (overlookmotel)
• b9a14fd vscode: Update package.json to restrict a few more config options. (fix(vscode): Update package.json to restrict a few more config options. #18270) (Connor Shea)
• c1260cb vscode: Update version info formatting. (fix(vscode): Update version info formatting. #18274) (connorshea)
• 2f68dc6 vscode: Update notification for client restart to specify tool. (fix(vscode): Update notification for client restart to specify tool. #18273) (connorshea)

⚡ Performance

• dc931ba linter/no-inner-declarations: Skip scope flags lookup in modules (perf(linter/no-inner-declarations): skip scope flags lookup in modules #18249) (overlookmotel)
• 07618a7 linter: Turn off scope_build_child_ids for SemanticBuilder (perf(linter): turn off scope_build_child_ids for SemanticBuilder #18360) (Dunqing)
• 1aac079 linter/exhaustive-deps: Simplify the logic of checking if the identifier it is a dependency of hook (perf(linter/exhaustive-deps): simplify the logic of checking if the identifier it is a dependency of hook #18350) (Dunqing)
• 591d522 linter/block-scoped-var: Avoid iter_all_scope_child_ids by walking references/redeclarations scope ancestors (perf(linter/block-scoped-var): avoid iter_all_scope_child_ids by walking references/redeclarations scope ancestors #18335) (Dunqing)
• 2eefd6d linter/plugins: Remove branch from token parsing (perf(linter/plugins): remove branch from token parsing #18369) (overlookmotel)

📚 Documentation

• 698c21d linter: Modernize docs for various React rules (docs(linter): modernize docs for various React rules #18559) (connorshea)
• 314a47c linter: Clarify the no-find-dom-node rule with a note that the method was removed in React 19. (docs(linter): Clarify the no-find-dom-node rule with a note that the method was removed in React 19. #18556) (connorshea)
• 5eff704 linter: Update no-inner-declarations to fix config option docs (docs(linter): Update no-inner-declarations to fix config option docs #18511) (connorshea)
• dd5d2f6 linter: Improve diagnostic message in valid_typeof rule. (docs(linter): Improve diagnostic message in valid_typeof rule. #18507) (connorshea)
• 8ccd853 npm: Update package homepage URLs and add keywords (docs(npm): update package homepage URLs and add keywords #18509) (Boshen)
• 4958233 linter: Add missing "What it does" section in prefer-reflect-apply rule. (docs(linter): Add missing "What it does" section in prefer-reflect-apply rule. #18475) (connorshea)
• 2fa83a4 linter: Improve the docs for import/unambiguous. (docs(linter): Improve the docs for import/unambiguous. #18474) (connorshea)
• 7b1505c linter: Improve docs for oxc/only-used-in-recursion rule. (docs(linter): Improve docs for oxc/only-used-in-recursion rule. #18473) (connorshea)
• ab506d6 linter/plugins: Correct comment (docs(linter/plugins): correct comment #18456) (overlookmotel)
• 4565c73 linter: react/display-name: add docs for config options (docs(linter): react/display-name: add docs for config options #18430) (camchenry)
• b95a89f linter: Fix docs for the curly rule. (docs(linter): Fix docs for the curly rule. #18374) (connorshea)
• f675eb4 linter: Fix the react/only-export-components rule docs. (docs(linter): Fix the react/only-export-components rule docs. #18319) (connorshea)
• 704db95 linter: "no-unused-vars" extend ignored files section for svelte and astro files (docs(linter): "no-unused-vars" extend ignored files section for svelte and astro files #18304) (Sysix)
• 3af4a88 linter: Add "Examples" headers to rules missing them (docs(linter): Add "Examples" headers to rules missing them #18266) (connorshea)

Oxfmt

💥 BREAKING CHANGES

• 777fc40 ast: [BREAKING] Add Ident type (feat(ast)!: add Ident type #18354) (Boshen)

🚀 Features

• d71c15d oxfmt: Enable tailwind sort inside xxx-in-js (feat(oxfmt): Enable tailwind sort inside xxx-in-js #18417) (leaysgur)
• 52b5003 formatter,oxfmt: Support Angular @Component({ template, styles }) (feat(formatter,oxfmt): Support Angular @Component({ template, styles }) #18324) (leaysgur)

🐛 Bug Fixes

• 224140c oxfmt: Canonicalize .. component in config path (fix(oxfmt): Canonicalize .. component in config path #18570) (leaysgur)
• 30b467e formatter: Preserve trailing comments before the semicolon in class methods without a body (fix(formatter): preserve trailing comments before the semicolon in class methods without a body #18446) (Dunqing)
• c205b0d ast: Remove ThisExpression from TSModuleReference (fix(ast): remove ThisExpression from TSModuleReference #18489) (Boshen)
• 164bbd7 formatter: Preserve trailing comments inside ternary alternate branch (fix(formatter): preserve trailing comments inside ternary alternate branch #18433) (Dunqing)
• 1c50800 formatter: Use HTML entity escaping for JSX attribute strings (fix(formatter): use HTML entity escaping for JSX attribute strings #18385) (Boshen)
• 4e156d2 formatter: Preserve parentheses for in expressions in arrow function block bodies (fix(formatter): preserve parentheses for in expressions in arrow function block bodies #18352) (Boshen)
• 7e6c15b oxfmt: Increase Tailwind CSS test timeout for Windows CI (fix(oxfmt): increase Tailwind CSS test timeout for Windows CI #18339) (Boshen)
• 29966eb formatter/dead-code-removal: Handle tailwind sorting (fix(formatter/dead-code-removal): Handle tailwind sorting #18321) (leaysgur)
• 29f41be formatter: Only expand mapped types when newline immediately follows opening brace (fix(formatter): only expand mapped types when newline immediately follows opening brace #18087) (Boshen)
• 2194552 formatter: Relocate leading comments for single-element union/intersection types (fix(formatter): relocate leading comments for single-element union/intersection types #18083) (Boshen)

⚡ Performance

• 85ab400 formatter: Store AstNodes itself instead of &'a AstNodes as the parent field of AstNode (perf(formatter): store AstNodes itself instead of &'a AstNodes as the parent field of AstNode #18428) (Dunqing)
• 194d384 formatter: Reduce AstNode size by 8 bytes using following_span_start (perf(formatter): reduce AstNode size by 8 bytes using following_span_start #18347) (Dunqing)
• b2df8fb oxfmt: Enable tailwind plugin only for relevant parser (perf(oxfmt): Enable tailwind plugin only for relevant parser #18418) (leaysgur)

📚 Documentation

• 8ccd853 npm: Update package homepage URLs and add keywords (docs(npm): update package homepage URLs and add keywords #18509) (Boshen)

[github-actions]

Oxlint Ecosystem CI

suite	result
sidebase/nuxt-auth	❌
toeverything/affine	❌
rolldown/rolldown	✅
elastic/kibana	✅
PostHog/posthog	❌
napi-rs/napi-rs	✅
glide-browser/glide	✅
Milkdown/milkdown	✅
vercel/turborepo	✅
preactjs/preact	❌
monkeytypegame/monkeytype	✅
DefinitelyTyped/DefinitelyTyped	✅
renovatebot/renovate	✅
bbc/simorgh	✅
nestjs/nest	✅
microsoft/vscode	✅
bluesky-social/social-app	✅
calcom/cal.com	✅
oxidecomputer/console	✅
actualbudget/actual	✅
outline/outline	❌
date-fns/date-fns	✅
oven-sh/bun	❌
formatjs/formatjs	✅
vercel/next.js	✅

[Copilot]

Pull request overview

This PR releases oxlint v1.42.0 and oxfmt v0.27.0, incrementing versions across all relevant packages and updating changelogs with the latest features, bug fixes, and documentation improvements.

Changes:

• Version bump for oxlint from 1.41.0 to 1.42.0
• Version bump for oxfmt from 0.26.0 to 0.27.0
• Updated CHANGELOGs with new release entries dated 2026-01-26

Reviewed changes

Copilot reviewed 18 out of 19 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
npm/oxlint/package.json	Update oxlint npm package version to 1.42.0
npm/oxlint/CHANGELOG.md	Add changelog entry for oxlint 1.42.0 release
npm/oxfmt/package.json	Update oxfmt npm package version to 0.27.0
npm/oxfmt/CHANGELOG.md	Add changelog entry for oxfmt 0.27.0 release
editors/vscode/package.json	Update VS Code extension version to 1.42.0
editors/vscode/CHANGELOG.md	Add changelog entry for VS Code extension 1.42.0
crates/oxc_linter/Cargo.toml	Update oxc_linter crate version to 1.42.0
crates/oxc_linter/CHANGELOG.md	Add comprehensive changelog for oxc_linter 1.42.0
crates/oxc_formatter/Cargo.toml	Update oxc_formatter crate version to 0.27.0
crates/oxc_formatter/CHANGELOG.md	Add changelog entry for oxc_formatter 0.27.0
apps/oxlint/src-js/bindings.js	Update all native binding version checks to 1.42.0
apps/oxlint/package.json	Update oxlint-app package version to 1.42.0
apps/oxlint/Cargo.toml	Update oxlint app crate version to 1.42.0
apps/oxlint/CHANGELOG.md	Add changelog entry for oxlint app 1.42.0
apps/oxfmt/src-js/bindings.js	Update all native binding version checks to 0.27.0
apps/oxfmt/package.json	Update oxfmt-app package version to 0.27.0
apps/oxfmt/Cargo.toml	Update oxfmt app crate version to 0.27.0
apps/oxfmt/CHANGELOG.md	Add changelog entry for oxfmt app 0.27.0
Cargo.lock	Update locked versions for oxc_formatter, oxc_linter, oxfmt, and oxlint

---

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[codspeed-hq]

Merging this PR will not alter performance

✅ 46 untouched benchmarks
⏩ 3 skipped benchmarks¹

---

_{Comparing release/apps-1769418976 (6e15799) with main (4d97ba3)²}

Footnotes

1. 3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on main (224140c) during the generation of this report, so 4d97ba3 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩