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shadcn@4.20.0

shadcn-ui/uishadcn@4.20.0Sep 2, 2026by github-actions[bot]

AI Summary

Introduces a new migration tool to help users replace legacy utility functions (clsx, tailwind-merge, cnfast) in projects using Tailwind CSS v4.

Key Highlights

  • Added `npx shadcn migrate cn` command
  • Migration tool specifically for Tailwind CSS v4 projects
  • Automates the replacement of clsx, tailwind-merge, and cnfast

New Features

  • Migration tool to replace utility functions in Tailwind CSS v4

Full Release Notes

### 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.