# What's New Changelog Timeline

> What's New Changelog Timeline for React and Tailwind CSS (shadcn/ui) adds hover-to-expand headlines and an animated timeline rail. It is built to make release notes easy to scan and explore. Includes click-to-pin, month groups, live status, controlled expansion, keyboard support, reduced motion, and light/dark themes. Use it for product updates and release history. The included demo shows sample updates from CCgather; the component makes no requests. Requires React and lucide-react, with no animation library.

- Author: [DHxWhy](https://21st.dev/@dhxwhy)
- License: mit
- Tags: Changelog, Timeline, Announcement, SaaS, Notification
- npm dependencies: lucide-react
- Live preview: https://21st.dev/@dhxwhy/components/changelog-timeline

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/dhxwhy/changelog-timeline?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/changelog.md