# Tailwind CSS v3.4.0 — Release & Upgrade Intelligence
- **Product:** Tailwind CSS (https://tailwindcss.com)
- **Version:** v3.4.0
- **Released:** Dec 19, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/tailwind/updates/v3.4.0/

## Executive Summary (TL;DR)
Tailwind CSS v3.4.0. Source highlight: Tailwind CSS v3.4 has arrived! Check out the announcement post for a guided tour through all of the highlights.

## New Features
- Add `svh`, `lvh`, and `dvh` values to default `height`/`min-height`/`max-height` theme (#11317)
- Add `has-*` variants for `:has(...)` pseudo-class (#11318)
- Add `text-wrap` utilities including `text-balance` and `text-pretty` (#11320, #12031)
- Extend default `opacity` scale to include all steps of 5 (#11832)
- Update Preflight `html` styles to include shadow DOM `:host` pseudo-class (#11200)
- Increase default values for `grid-rows-*` utilities from 1–6 to 1–12 (#12180)

## Improvements
- Improve relative precedence of `rtl`, `ltr`, `forced-colors`, and `dark` variants (#12584)

## Upgrade Command
```bash
npm install --save-exact tailwindcss@3.4.0
```