# Tailwind CSS v4.0.11 — Release & Upgrade Intelligence
- **Product:** Tailwind CSS (https://tailwindcss.com)
- **Version:** v4.0.11
- **Released:** Mar 06, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/tailwind/updates/v4.0.11/

## Executive Summary (TL;DR)
Tailwind CSS v4.0.11. Source highlight: Ensure classes containing `--` are extracted correctly (#16972)

## Bug Fixes
- Ensure classes containing `--` are extracted correctly (#16972)
- Ensure classes containing numbers followed by dash or underscore are extracted correctly (#16980)
- Ensure arbitrary container queries are extracted correctly (#16984)
- Ensure classes ending in `` are extracted in Slim templating language ([#16985)
- Ensure arbitrary variables with data types are extracted correctly (#16986)

## Upgrade Command
```bash
npm install --save-exact tailwindcss@4.0.11
```