# Tailwind CSS v4.1.10 — Release & Upgrade Intelligence
- **Product:** Tailwind CSS (https://tailwindcss.com)
- **Version:** v4.1.10
- **Released:** Jun 11, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/tailwind/updates/v4.1.10/

## Executive Summary (TL;DR)
Tailwind CSS v4.1.10. Source highlight: Fix incorrectly generated CSS when using percentages in arbitrary values with calc (e.g. `w-[calc(100%-var(--offset))]`) (#18289)

## Bug Fixes
- Fix incorrectly generated CSS when using percentages in arbitrary values with calc (e.g. `w-[calc(100%-var(--offset))]`) (#18289)

## Upgrade Command
```bash
npm install --save-exact tailwindcss@4.1.10
```