# Tailwind CSS v3.3.4 — Release & Upgrade Intelligence
- **Product:** Tailwind CSS (https://tailwindcss.com)
- **Version:** v3.3.4
- **Released:** Oct 24, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/tailwind/updates/v3.3.4/

## Executive Summary (TL;DR)
Tailwind CSS v3.3.4. Source highlight: Improve normalisation of `calc()`-like functions (#11686)

## Bug Fixes
- Improve normalisation of `calc()`-like functions (#11686)
- Skip `calc()` normalisation in nested `theme()` calls (#11705)
- Fix incorrectly generated CSS when using square brackets inside arbitrary properties (#11709)
- Make `content` optional for presets in TypeScript types (#11730)
- Handle variable colors that have variable fallback values (#12049)
- Batch reading content files to prevent `too many open files` error (#12079)

## Upgrade Command
```bash
npm install --save-exact tailwindcss@3.3.4
```