Storybook 10 transitions to ESM-only, reducing install size by 29% while adding module automocking for easier testing, typesafe CSF Factories for React, tag filtering exclusion for sidebar management, and Svelte async component support. The release includes support for Next 16 and Vitest 4, plus experimental features like test syntax and React Server Component testing. The breaking change requires Node 20.16+, 22.19+, or 24+.
Table of contents
ESM-onlyModule automockingTypesafe CSF FactoriesUI editing and sharing optimizationsTag filtering exclusion and configurationSvelte async components and state mockingNext 16, Vitest 4, and more!Try Storybook 10 todayWhat’s next? Test syntax, RSC testingCredits661.1K Impressions1 Comment