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kylegach merged 1 commit into from
Oct 28, 2025
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Docs: Update migration guide #32868

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14 changes: 7 additions & 7 deletions docs/releases/migration-guide.mdx
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Expand Up @@ -7,15 +7,15 @@ sidebar:

[full-migration-notes]: https://github.com/storybookjs/storybook/blob/next/MIGRATION.md#from-version-9x-to-1000

Storybook 10 is a breaking maintenance release focused on ESM-only package distribution. Its main features include:
Storybook 10 contains one breaking change: it’s ESM-only. This simplifies our distribution and reduces install size by 29% while simultaneously unminifying dist code for easier debugging.

- 💎 ESM-only to reduce install size
- ↗️ CSF Next preview with better typesafety and autocompletion
- 🏷 Improved tags-based filtering
It also includes features to level up your UI development, documentation, and testing workflows:

Coming soon:

- 🧪 Familiar and ergonomic CSF test functions (experimental)
- 🧩 Module automocking for easier testing
- 🏭 Typesafe CSF factories Preview for React
- 💫 UI editing and sharing optimizations
- 🏷️ Tag filtering exclusion and configuration for sidebar management
- 🔀 Svelte async component support and more

This guide is meant to help you **upgrade from Storybook 9.x to 10** successfully!

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