release(oxlint): v1.21.0

[Boshen]

[1.21.0] - 2025-10-08

🚀 Features

• 576be20 linter/plugins: Support selectors DSL (feat(linter/plugins): support selectors DSL #14435) (overlookmotel)
• b2de44f linter/plugins: Support interpolation in normal diagnostic message (feat(linter/plugins): support interpolation in normal diagnostic message #14419) (overlookmotel)
• 382c5be linter/plugins: Support placeholders in messageIds (feat(linter/plugins): support placeholders in messageIds #14416) (camc314)
• 529e88e linter/plugins: Support messageIds (feat(linter/plugins): support messageIds #14415) (camc314)
• 83e7824 linter: Add vue/require-default-export rule (feat(linter): add vue/require-default-export rule #14351) (Sysix)
• ff98536 linter: Add vue/no-import-compiler-macros rule (feat(linter): add vue/no-import-compiler-macros rule #14335) (Sysix)
• 0ec0847 ci: Run napi tests on windows (feat(ci): run napi tests on windows #14383) (camc314)

🐛 Bug Fixes

• 493082c language_server: Use the first Span of the message as the primary Diagnostic range (fix(language_server): use the first Span of the message as the primary Diagnostic range #14057) (Sysix)
• 88ec1bd linter/plugins: Fix error messages (fix(linter/plugins): fix error messages #14423) (overlookmotel)
• 18616c2 oxlint: Ignore fixtures dir for vitest (fix(oxlint): ignore fixtures dir for vitest #14414) (camc314)
• ec02fe8 oxlint: Normalize path separators in snapshot tests (fix(oxlint): normalize path separators in snapshot tests #14406) (camc314)
• 6e8d2f6 language_server: Ignore JS plugins (fix(language_server): ignore JS plugins #14379) (overlookmotel)
• 96663fb linter/plugins: Do not call before hook if empty visitor (fix(linter/plugins): do not call before hook if empty visitor #14401) (overlookmotel)
• 52f04bd linter: Use pathToFileURL for importing plugins to ensure correct URL format (fix(linter): use pathToFileURL for importing plugins to ensure correct URL format #14394) (camc314)
• 1ea0d46 oxlint: Resolve tsdown deprecation warning (fix(oxlint): resolve tsdown deprecation warning #14389) (camc314)
• bb679b5 linter: Promise/prefer-await-to-then strict option not reading from config (fix(linter): promise/prefer-await-to-then strict option not reading from config #14382) (camc314)

🚜 Refactor

• 3b26bf3 linter/plugins: Split adding visit function to compiler visitor into multiple functions (refactor(linter/plugins): split adding visit function to compiler visitor into multiple functions #14433) (overlookmotel)
• af3a75e linter/plugins: Track ancestors while walking AST (refactor(linter/plugins): track ancestors while walking AST #14432) (overlookmotel)
• f279f0b linter/plugins: Do not lazy-load visitor keys (refactor(linter/plugins): do not lazy-load visitor keys #14431) (overlookmotel)
• 5e99ed3 linter/plugins: Allow nullish values as message or messageId (refactor(linter/plugins): allow nullish values as message or messageId #14422) (overlookmotel)
• dc30938 linter/plugins: Remove default value from Context constructor (refactor(linter/plugins): remove default value from Context constructor #14421) (overlookmotel)
• 28cfae0 oxlint: Use vitests built in file snapshot comparison (refactor(oxlint): use vitests built in file snapshot comparison #14392) (camc314)
• 06b0e9f linter/plugins: Convert generated files to TS (refactor(linter/plugins): convert generated files to TS #14385) (overlookmotel)
• 52f35c6 napi/parser, linter/plugins: Rename types.js to type_ids.js (refactor(napi/parser, linter/plugins): rename types.js to type_ids.js #14384) (overlookmotel)

⚡ Performance

• 26435a1 linter/plugins: Small perf optimizations (perf(linter/plugins): small perf optimizations #14420) (overlookmotel)
• d8a8be1 linter/plugins: Avoid private methods (perf(linter/plugins): avoid private methods #14418) (overlookmotel)

🧪 Testing

• d8da4a4 linter/plugins: Clarify tests for message placeholders (test(linter/plugins): clarify tests for message placeholders #14417) (overlookmotel)

[graphite-app]

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[github-actions]

Oxlint Ecosystem CI

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

[Copilot]

Pull Request Overview

This PR releases version 1.21.0 of oxlint, updating version numbers across all packages and bindings, and adding changelog entries for the new release.

• Version bumps from 1.20.0 to 1.21.0 across all package.json and Cargo.toml files
• Updated native binding version checks in the JavaScript bindings file
• Added changelog entries documenting the new features, bug fixes, and improvements in v1.21.0

Reviewed Changes

Copilot reviewed 12 out of 13 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
npm/oxlint/package.json	Updated package version to 1.21.0
npm/oxlint/CHANGELOG.md	Added changelog entry for v1.21.0 release
editors/vscode/package.json	Updated VS Code extension version to 1.21.0
editors/vscode/CHANGELOG.md	Added empty line spacing for changelog formatting
crates/oxc_linter/Cargo.toml	Updated Rust crate version to 1.21.0
crates/oxc_linter/CHANGELOG.md	Added comprehensive changelog for linter v1.21.0
crates/oxc_language_server/Cargo.toml	Updated language server crate version to 1.21.0
crates/oxc_language_server/CHANGELOG.md	Added changelog entry for language server v1.21.0
apps/oxlint/src-js/bindings.js	Updated all native binding version checks to 1.21.0
apps/oxlint/package.json	Updated main oxlint package version to 1.21.0
apps/oxlint/Cargo.toml	Updated oxlint Rust binary version to 1.21.0
apps/oxlint/CHANGELOG.md	Added changelog entries for oxlint v1.21.0

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[Copilot]

The changelog contains a duplicate entry for version 1.21.0. The second entry starting at line 47 should be removed to avoid confusion.

Suggested change

	## [1.21.0] - 2025-10-08
	### 🚀 Features
	- 576be20 linter/plugins: Support selectors DSL (#14435) (overlookmotel)
	- b2de44f linter/plugins: Support interpolation in normal diagnostic `message` (#14419) (overlookmotel)
	- 382c5be linter/plugins: Support placeholders in messageIds (#14416) (camc314)
	- 529e88e linter/plugins: Support `messageId`s (#14415) (camc314)
	- 0ec0847 ci: Run napi tests on windows (#14383) (camc314)
	### 🐛 Bug Fixes
	- 88ec1bd linter/plugins: Fix error messages (#14423) (overlookmotel)

[codspeed-hq]

CodSpeed Performance Report

Merging #14439 will not alter performance

_{Comparing release/oxlint-1759920630 (780473a) with main (493082c)}

Summary

✅ 37 untouched