Storybook 10.3 - March 2026

Improved developer experience, AI-assisting tools, and broader ecosystem support

Storybook 10.3 contains hundreds of fixes and improvements including:

• 🤖 Storybook MCP: Agentic component dev, docs, and test (Preview release for React)
• ⚡ Vite 8 support
• ▲ Next.js 16.2 support
• 📝 ESLint 10 support
• 〰️ Addon Pseudo-States: Tailwind v4 support
• 🔧 Addon-Vitest: Simplified configuration - no more setup files required
• ♿ Numerous accessibility improvements across the UI

Browse the changelogs for the full list of changes.

There are no breaking changes, but you can refer to our Migration guide to upgrade from pre-10.0 of Storybook.