Releases · storybookjs/storybook

8.5.0

Storybook 8.5 is packed with powerful features to enhance your development workflow. This release makes it easier than ever to build accessible, well-tested UIs. Here’s what’s new:

🦾 Realtime accessibility tests to help build UIs for everybody
🛡️ Project code coverage to measure the completeness of your tests
🎯 Focused tests for faster test feedback
⚛️ React Native Web Vite framework (experimental) for testing mobile UI
⚛️ React 19 support
🎁 Storybook test early access program to level up your testing game
💯 Hundreds more improvements

List of all updates

Addon A11y: Add conditional rendering for a11y violation number in Testing Module - #30073, thanks @valentinpalkovic!
Addon A11y: Add typesVersions support for TypeScript definitions in a11y package - #30005, thanks @valentinpalkovic!
Addon A11y: Adjust default behaviour when using with experimental-addon-test - #30162, thanks @valentinpalkovic!
Addon A11y: Change default element selector - #30253, thanks @valentinpalkovic!
Addon A11y: Create a11y test provider and revamp a11y addon - #29643, thanks @valentinpalkovic!
Addon A11y: Don't set a11y tag as comment in automigrations - #30257, thanks @valentinpalkovic!
Addon A11y: Fix skipped status handling in Testing Module - #30077, thanks @valentinpalkovic!
Addon A11y: Refactor environment variable handling for Vitest integration - #30022, thanks @valentinpalkovic!
Addon A11y: Remove warnings API - #30049, thanks @kasperpeulen!
Addon A11y: Run the a11y automigration on postInstall - #30004, thanks @kasperpeulen!
Addon A11y: Show errors of axe properly - #30050, thanks @kasperpeulen!
Addon A11y: Update accessibility status handling in TestProviderRender - #30027, thanks @valentinpalkovic!
Addon Docs: Dynamically import rehype - #29544, thanks @valentinpalkovic!
Addon Docs: Make new code panel opt in - #30248, thanks @shilman!
Addon Onboarding: Prebundle react-confetti - #29996, thanks @yannbf!
Addon Test: Add @vitest/coverage-v8 during postinstall if no coverage reporter is installed - #29993, thanks @ghengeveld!
Addon Test: Add prerequisite check for MSW - #30193, thanks @yannbf!
Addon Test: Add support for previewHead - #29808, thanks @ndelangen!
Addon Test: Add Vitest 3 support - #30181, thanks @valentinpalkovic!
Addon Test: Always run Vitest in watch mode internally - #29749, thanks @JReinhold!
Addon Test: Always use installed version of vitest - #30134, thanks @kasperpeulen!
Addon Test: Clarify message when vitest detects missing deps - #29763, thanks @ndelangen!
Addon Test: Clear coverage data when starting or watching - #30072, thanks @ghengeveld!
Addon Test: Context menu UI - #29727, thanks @ghengeveld!
Addon Test: Context menu updates - #30107, thanks @ghengeveld!
Addon Test: Correctly stop Storybook when Vitest closes - #30012, thanks @JReinhold!
Addon Test: Filter out falsy test results in TestProviderRender - #30001, thanks @valentinpalkovic!
Addon Test: Fix documentation links - #30128, thanks @yannbf!
Addon Test: Fix duplicate test.include patterns - #30029, thanks @JReinhold!
Addon Test: Fix environment variable for Vitest Storybook integration - #30054, thanks @valentinpalkovic!
Addon Test: Fix error reporting for vitest crashes - #29751, thanks @ndelangen!
Addon Test: Fix generated path to vitest.setup.js - #30233, thanks @JReinhold!
Addon Test: Fix indexing behavior - #29836, thanks @yannbf!
Addon Test: Fix printing null% for coverage - #30061, thanks @ghengeveld!
Addon Test: Fix run request while booting or restarting Vitest - #29829, thanks @ghengeveld!
Addon Test: Handle undefined storyId - #29998, thanks @ghengeveld!
Addon Test: Improve error message on missing coverage package - #30088, thanks @JReinhold!
Addon Test: Improve support for mono-repos - #30216, thanks @valentinpalkovic!
Addon Test: Make component tests status row link to the story's tests panel - #29992, thanks @ghengeveld!
Addon Test: Merge viteFinal config into vitest config - #29806, thanks @ndelangen!
Addon Test: Only optimize react deps if applicable in vitest-plugin - #29617, thanks @yannbf!
Addon Test: Only reset story count on file change when watch mode is enabled - #30121, thanks @ghengeveld!
Addon Test: Optimize internal dependencies - #29595, thanks @yannbf!
Addon Test: Prompt switch to experimental-nextjs-vite - #29814, thanks @ndelangen!
Addon Test: Refactor test addon to include stories automatically - #29367, thanks @yannbf!
Addon Test: Remove a11y placeholder - #29769, thanks @JReinhold!
Addon Test: Replace glob with tinyglobby - #29817, thanks @ghengeveld!
Addon Test: Serve staticDirs with Vitest - #29811, thanks @ghengeveld!
Addon Test: Show sub test provider toggle state in main testing module - #30019, thanks @ghengeveld!
Addon Test: Support Storybook environment variables in Vitest - #29792, thanks @ghengeveld!
Addon Test: Use correct vitest config file path - #30135, thanks @kasperpeulen!
Addon Test: Use local storybook binary instead - #30021, thanks @kasperpeulen!
Addon Test: Use ProgressSpinner for stop button in Testing Module - #29997, thanks @ghengeveld!
Addon Test: Wait for 2 seconds before showing result mismatch warning - #30002, thanks @ghengeveld!
Addon Test: Wrap sub-paths exported with require.resolve - #30026, thanks @ndelangen!
Addon Themes: Deprecate useThemeParameters - #30111, thanks @yannbf!
Angular: Support statsJson in angular schemas - #29233, thanks @yannbf!
Automigration: Improve addon-a11y-addon-test - #30127, thanks @valentinpalkovic!
Automigration: Improve setup file transformation and version range handling for a11y migration - #30060, thanks @valentinpalkovic!
Automigrations: Skip vite config file migration for react native web - #30190, thanks @dannyhw!
Build: Downgrade to esbuild 0.24.0 - #30116, thanks @yannbf!
Build: Revert Downgrade to esbuild 0.24.0 - #30120, thanks @yannbf!
CLI: Fix init help for storybook command - #29480, thanks @toothlessdev!
CLI: Fix new-frameworks automigration - #29804, thanks @yannbf!
CLI: Re-Add Nuxt support - #28607, thanks @valentinpalkovic!
CLI: Update a11y-test comment with experimental caveat - [#30258](https://github.com/storybookjs/storybook/pu...