# Tailwind CSS v4.0.12 — Release & Upgrade Intelligence
- **Product:** Tailwind CSS (https://tailwindcss.com)
- **Version:** v4.0.12
- **Released:** Mar 07, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/tailwind/updates/v4.0.12/

## Executive Summary (TL;DR)
Tailwind CSS v4.0.12. Source highlight: Vite: Fix `url(…)` rebasing in transitively imported CSS files (#16965)

## Bug Fixes
- Vite: Fix `url(…)` rebasing in transitively imported CSS files (#16965)
- PostCSS: Rebase `url(…)`s in imported CSS files (#16965)
- Ensure utilities are sorted based on their actual property order (#16995)
- Ensure strings in Pug and Slim templates are handled correctly (#17000)
- Ensure classes between `}` and `{` are properly extracted (#17001)
- Fix `razor`/`cshtml` pre-processing (#17027)

## Upgrade Command
```bash
npm install --save-exact tailwindcss@4.0.12
```