# Tailwind CSS v4.0.10 — Release & Upgrade Intelligence
- **Product:** Tailwind CSS (https://tailwindcss.com)
- **Version:** v4.0.10
- **Released:** Mar 05, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/tailwind/updates/v4.0.10/

## Executive Summary (TL;DR)
Tailwind CSS v4.0.10. Source highlight: Add `col-<number>` and `row-<number>` utilities for `grid-column` and `grid-row` (#15183)

## New Features
- Add `col-<number>` and `row-<number>` utilities for `grid-column` and `grid-row` (#15183)

## Improvements
- Replaced the existing candidate extractor with a brand new extractor to improve maintainability, correctness, and performance (#16306)

## Bug Fixes
- Ensure `not-*` does not remove `:is(…)` from variants (#16825)
- Ensure `@keyframes` are correctly emitted when using a prefix (#16850)
- Don't swallow `@utility` declarations when `@apply` is used in nested rules (#16940)
- Ensure `outline-hidden` behaves like `outline-none` outside of forced colors mode (#16943)
- Allow `!important` on CSS variables again (#16873)
- Vite: Do not crash when encountering an `.svg` file with `#` or `?` in the filename (#16957)

## Upgrade Command
```bash
npm install --save-exact tailwindcss@4.0.10
```