storybook

Storybook 9.1 is packed with new features and improvements to enhance accessibility, streamline testing, and make your development workflow even smoother!

🚀 Improved upgrade command with monorepo support for seamless upgrades
🅰 Angular fixes for Tailwind 4, cache busting, and zoneless compatibility
🧪 sb.mock API and Automocking: one-line module mocking to simplify your testing workflow
🧪 Favicon shows test run status for quick visual feedback
⚛️ Easier configuration for React Native projects
🔥 Auto-abort play functions on HMR to avoid unwanted side effects
🏗️ Improved CSF factories API for type safe story definitions
♿️ A11y improvements across Storybook’s UI — addon panel, toolbar, sidebar, mobile & more
💯 Dozens more fixes and improvements based on community feedback!

List of all updates

• A11y: Improved toolbar a11y by fixing semantics

• Addon Vitest: Remove Optimize deps candidates due to Vitest warnings

• Angular: Bundle using TSup

• Angular: Prevent directory import in Angular builders

• Automigration: Await updateMainConfig in removeEssentials

• Builder-Vite: Fix logic related to setting allowedHosts when IP address used

• Controls: Improve the accessibility of the object control

• Core: Abort play function on HMR

• Core: Avoid pausing animations in non-Vitest Playwright environments

• Core: Cleanup of type following up v9 and small verbatimModuleSyntax type fix

• Core: Fix aria-controls attribute on sidebar nodes to include all children

• Core: Fix horizontal scrollbar covering part of the toolbar

• Core: Fix moving log file across drives and projectRoot detection on Windows

• Core: Prevent interactions panel from flickering and showing incorrect state

• Core: Serve dynamic favicon based on testing module status

• Core: Support container queries in addon panels

• CSF Factories: Add parameters/globals types, extend API, portable stories

• CSF: Improve controls parameters

• CSF: Improve docs parameter types

• CSF: Only add preview annotations to definePreview in csf-factories automigration

• Init: Exclude mdx stories when docs feature isn't selected during init

• Maintenance: Add flag to toggle default automigrations

• React Native Web: Simplify config by using vite-plugin-rnw

• Telemetry: Add automigration errors

• Telemetry: Fix project.json for getAbsolutePath

• UI: Apply user updates for mobile navigation accessibility

• UI: Fix interaction step collapse icon

• UI: Visual focus indicators (VFIs) aren't visible in high contrast mode (rebase)