SB6.3 adds new UI development and testing features, while evolving with the JS ecosystem:
- 📐 Layout debugging with Measure and Outline addons
- 🔌 Reuse your stories in unit tests: Jest, Cypress & more
- 🚀 Frameworks: Angular 12 Ivy, Lit2 web components
- 🛠 Builders: Webpack5 stable, Vite community
- 📦 Packaging: Modern ESM
It also contains hundreds more fixes, features, and tweaks. Browse the changelogs matching 6.3.0-alpha.*, 6.3.0-beta.*, and 6.3.0-rc.* for the full list of changes. See Storybook 6 migration guide to upgrade from 5.x or MIGRATION.md for detailed migration instructions.