v2.0.0 (2025-09-26)

What's Changed

💥 Breaking Changes

Target Environment Updates: Now ESM and ESLint Flat Config Only

• Drop support for CommonJS (CJS) module format, packages are now distributed only as ECMAScript Modules (ESM)
• Drop support for ESLint legacy config system, packages now support only ESLint Flat Config (eslint.config.js)
• Drop support for Node.js 18, minimum required version is now Node.js 20
• Drop support for ESLint 8, minimum required version is now ESLint 9.3.6
• Drop support for TypeScript 4, minimum required version is now TypeScript 5.9.2

Removed Rules

Rule	Replaced by	Reason
react-x/avoid-shorthand-boolean	react-x/jsx-shorthand-boolean	consolidated
react-x/avoid-shorthand-fragment	react-x/jsx-shorthand-fragment	consolidated
react-x/ensure-forward-ref-using-ref	react-x/no-useless-forward-ref	renamed
react-x/no-duplicate-props	react-x/jsx-no-duplicate-props	renamed
react-x/no-comment-textnodes	react-x/jsx-no-comment-textnodes	renamed
react-x/no-complicated-conditional-rendering		discontinued
react-x/no-nested-components	react-x/no-nested-component-definitions	renamed
react-x/prefer-react-namespace-import	react-x/prefer-namespace-import	renamed
react-x/prefer-shorthand-boolean	react-x/jsx-shorthand-boolean	consolidated
react-x/prefer-shorthand-fragment	react-x/jsx-shorthand-fragment	consolidated
react-x/use-jsx-vars	react-x/jsx-uses-vars	renamed
react-dom/no-children-in-void-dom-elements	react-dom/no-void-elements-with-children	renamed
react-hooks-extra/no-direct-set-state-in-use-layout-effect	react-hooks-extra/no-direct-set-state-in-use-effect	consolidated
react-hooks-extra/no-unnecessary-use-callback	react-x/no-unnecessary-use-callback	relocated
react-hooks-extra/no-unnecessary-use-memo	react-x/no-unnecessary-use-memo	relocated
react-hooks-extra/no-unnecessary-use-prefix	react-x/no-unnecessary-use-prefix	relocated
react-hooks-extra/prefer-use-state-lazy-initialization	react-x/prefer-use-state-lazy-initialization	relocated

Removed Presets

Preset	Replaced by	Reason
core	x	renamed
off-dom	disable-dom	renamed

Removed Settings

Setting	Replaced by	Reason
additionalComponents		discontinued
additionalHooks		discontinued
skipImportCheck		discontinued

Rules previously using these settings have been refactored to use improved heuristics and no longer require manual configuration.

✨ New

Added the following new rules:

• react-x/jsx-shorthand-boolean: Enforces a consistent style for boolean attributes by @Rel1cx
• react-x/jsx-shorthand-fragment: Enforces a consistent style for React Fragments by @Rel1cx
• react-x/no-forbidden-props: Disallows specific props on components by @reteps
• react-x/no-unnecessary-key: Reports unnecessary key props on elements by @Rel1cx, @kachkaev
• react-x/no-unused-props: Reports unused props in components by @ulrichstark
• react-dom/no-string-style-prop: Disallows string values for the style prop by @Rel1cx, @karlhorky
• react-dom/prefer-namespace-import: Enforces using a namespace import for react-dom by @Rel1cx

Added the following new rule to the recommended-type-checked preset:

• react-x/no-unused-props: Reports unused props in components

The following rules now support Codemod features:

• react-x/no-component-did-update by @Rel1cx
• react-x/no-component-will-receive-props by @Rel1cx
• react-x/no-component-will-update by @Rel1cx
• react-x/no-context-provider by @Rel1cx
• react-x/no-forward-ref by @Rel1cx
• react-x/no-string-refs by @Rel1cx

The following rules now support auto-fix:

• react-x/no-missing-context-display-name by @k-yle

The following rules now support suggestion fixes:

• react-dom/no-missing-button-type by @Rel1cx
• react-dom/no-missing-iframe-sandbox by @Rel1cx
• react-dom/no-unsafe-target-blank by @Rel1cx

New configuration preset added:

• disable-conflict-eslint-plugin-react: Disable rules in eslint-plugin-react that conflict with rules in our plugins by @reteps

🐞 Fixes

• fix(react-x/no-unnecessary-use-prefix): fix false positive of React Hooks defined within the callback function of vi.mock(...) in Vitest test files by @Rel1cx
• fix(react-web-api/no-leaked-event-listener): fix useEffect setup function check to handle React.useEffect() calls correctly by @Rel1cx
• fix(react-naming-convention/filename): fix false positive on well-known filenames like 404.tsx, _app.tsx, [slug].tsx by @Rel1cx

🪄 Improvements

• refactor: simplify React APIs detection logic by @Rel1cx
• refactor: cleanup utilities and simplify rule implementations by @Rel1cx
• docs: add comparison table between eslint-plugin-react and eslint-react rules by @reteps, @outslept
• docs: replace tseslint.config with defineConfig in all examples by @Rel1cx
• build: migrate build system from tsup to tsdown for better performance by @Rel1cx

Full Changelog: v1.53.1...v2.0.0

Thanks to all contributors who made this release possible!