📈 Tracking: ESLint v9 support

[JoshuaKGoldberg]

👋 Hi all! With ESLint v9 released, many community plugins are adding support for the new major version. This is a tracking issue of ESLint v9 compatibility for the ~35 or so most popular plugins for ESLint that already support flat config. We'll keep this list updated over time.

If the plugin you're looking for isn't in this list, check 📈 Tracking: Flat Config support. This list treats flat config support as a prerequisite for full ESLint 9 support.

📌 Status emoji key:

• ✅ Support released!
• 📦 Merged; pending release
• 🏗️ PR was at least started
• 📝 Issue filed; waiting for PR

Name	Status	Issue	Commit / PR	Version
Plugins
@nuxt/eslint	✅			*
@typescript-eslint	✅	typescript-eslint#8211	typescript-eslint#9002	8.0.0-alpha.10
angular	📝	angular-eslint#1755
astro	✅
cypress	✅	cypress-io/eslint-plugin-cypress#146	25e092	3.2.0
ember	📝	eslint-plugin-ember/ember#2136
es-x	✅	eslint-plugin-es-x#124	eslint-plugin-es-x#129	7.6.0
eslint-comments	✅	eslint-plugin-eslint-comments#182	eslint-plugin-eslint-comments#206	4.3.0
eslint-plugin	✅	eslint-plugin-eslint-plugin#342	eslint-plugin-eslint-plugin#347	5.1.0
functional	✅		eslint-functional/eslint-plugin-functional#809	7.0.0-alpha.0
import-x	✅	eslint-plugin-import-x#60	eslint-plugin-import-x#61 , eslint-plugin-import-x#62	0.4.2
jsdoc	✅		eslint-plugin-jsdoc#1177	46.10.0
jsonc	✅	eslint-plugin-jsonc#240	eslint-plugin-jsonc#240	2.14.1
jest	✅		eslint-plugin-jest#1547	28.0.0
markdown	✅	eslint-plugin-markdown#231	eslint-plugin-markdown#232	4.0.1
mocha	✅	eslint-plugin-mocha#341	eslint-plugin-mocha#349	10.4.0
n	✅		eslint-plugin-n#216	17.0.0
nx	🏗️	nrwl/nx#22769	nrwl/nx#22770
perfectionist	✅		969ae4	0.6.0
playwright	✅	eslint-plugin-playwright#168	eslint-plugin-playwright#169	0.17.0
prettier	✅	eslint-plugin-prettier#591	eslint-plugin-prettier#616	5.1.0
qunit	📝	eslint-plugin-qunit#499
regexp	✅	eslint-plugin-regexp#695	eslint-plugin-regexp#702	2.3.0
react	📝	eslint-plugin-react#3699
security	✅	eslint-plugin-security#144	eslint-plugin-security#145	3.0.0
simple-import-sort	✅	eslint-plugin-simple-import-sort#145	eslint-plugin-simple-import-sort#155	11.0.0
solid	✅	eslint-plugin-solid#137	eslint-plugin-solid#140	v0.14.0
sonarjs	✅	eslint-plugin-sonarjs#403	eslint-plugin-sonarjs#472	1.0.3
stylistic	✅			0.0.0
svelte	✅	eslint-plugin-svelte#726	eslint-plugin-svelte#730	2.36.0
unicorn	✅	eslint-plugin-unicorn#1885	eslint-plugin-unicorn#1886	50.0.0
vitest	✅		eslint-plugin-vitest#400	0.2.8
vue	✅	eslint-plugin-vue#1291	eslint-plugin-vue#2319	9.24.0
vue-i18n	✅	eslint-plugin-vue-i18n#484	eslint-plugin-vue-i18n#487	3.0.0-next.9
vuejs-accessibility	✅		eslint-plugin-vuejs-accessibility#1073	2.3.0
yml	✅	eslint-plugin-yml#308	eslint-plugin-vue#311	1.13.1
Other Tools
create-config	✅	create-config#51	create-config#81	1.0.0
@rushstack/eslint-patch	📝	rushstack#4635	rushstack#4719

If the plugin you're looking for isn't in this list, check 📈 Tracking: Flat Config support. This list treats flat config support as a prerequisite for full ESLint 9 support.

Task list of issues/PRs on projects that didn't have released support yet at time of filing:

• [x] https://github.com/typescript-eslint/typescript-eslint/issues/8211
• [ ] https://github.com/angular-eslint/angular-eslint/issues/1755
• [ ] https://github.com/ember-cli/eslint-plugin-ember/issues/2136
• [ ] https://github.com/nrwl/nx/issues/22769
• [ ] https://github.com/platinumazure/eslint-plugin-qunit/issues/499
• [ ] https://github.com/jsx-eslint/eslint-plugin-react/issues/3699
• [ ] https://github.com/solidjs-community/eslint-plugin-solid/issues/137

Keep in mind that this list isn't automatic: I'm hand-editing it. Please report any inaccuracies or out-of-date information! ❤️

[vincentbriglia]

add https://github.com/gund/eslint-plugin-deprecation/pull/79 to the ones that need support and thanks for this list!

[JoshuaKGoldberg]

@vincentbriglia eslint-plugin-deprecation doesn't yet support flat config, so it's relegated to the other list: https://github.com/gund/eslint-plugin-deprecation/issues/85

[darkgreentree]

https://github.com/Rantanen/eslint-plugin-xss/issues/15

[pauliesnug]

v9 support was added to eslint-plugin-solid in https://github.com/solidjs-community/eslint-plugin-solid/pull/140, with https://github.com/solidjs-community/eslint-plugin-solid/pull/141 awaiting a peer dependency update

[MikeMcC399]

• eslint-plugin-cypress now supports ESLint 9.x in release v3.2.0 through PR https://github.com/cypress-io/eslint-plugin-cypress/pull/203.

• The README includes instructions for using release v3.2.0 with ESLint v7, v8 and v9.

• Thanks to the ESLint team for support regarding backwards compatibility of the API https://github.com/eslint/eslint.org/issues/559!

• Work is on-going regarding flat config updates.

[julienw]

https://github.com/testing-library/eslint-plugin-testing-library might be a good one to track as well. Here is their bug about the migration: https://github.com/testing-library/eslint-plugin-testing-library/issues/899

[JoshuaKGoldberg]

@julienw that'd be a good one to include, but it doesn't yet support flat config: https://github.com/testing-library/eslint-plugin-testing-library/issues/853. See #18093.

[nzakas]

As a note, we've now introduced a compatibility package for issues related to the ESLint v9 rule API changes.

[yannbertrand]

A few more:

• i18n-json unmaintained for 2 years, issue referencing flat config support,
• chai-expect, issue referencing flat config support
• knex

[jeremymeng]

vscode-eslint extension support: https://github.com/microsoft/vscode-eslint/issues/1644