# shadcn/ui 4.20.0

- Product: shadcn/ui (https://whatsnew.fyi/product/shadcn-ui)
- Vendor: shadcn
- Date: 2026-09-02
- Version: 4.20.0
- Original notes: https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.20.0
- Permalink: https://whatsnew.fyi/product/shadcn-ui/releases/4.20.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Add `npx shadcn migrate cn` command to replace `clsx`, `tailwind-merge` and `cnfast` in Tailwind CSS v4 projects

###### Minor Changes

- [#11728](https://github.com/shadcn-ui/ui/pull/11728) [`51f3e12203b0026ea106cafb4f770bda9abead87`](https://github.com/shadcn-ui/ui/commit/51f3e12203b0026ea106cafb4f770bda9abead87) Thanks [@shadcn](https://github.com/shadcn)! - add `npx shadcn migrate cn` to replace `clsx`, `tailwind-merge` and `cnfast` in Tailwind CSS v4 projects.