# Tailwind CSS v4.3.1 — Release & Upgrade Intelligence
- **Product:** Tailwind CSS (https://tailwindcss.com)
- **Version:** v4.3.1
- **Released:** Jun 12, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/tailwind/updates/v4.3.1/

## Executive Summary (TL;DR)
Tailwind CSS v4.3.1. Source highlight: Add `--silent` option to suppress output in `@tailwindcss/cli` (#20100)

## New Features
- Add `--silent` option to suppress output in `@tailwindcss/cli` (#20100)

## Bug Fixes
- Remove deprecation warnings by using `Module#registerHooks` instead of `Module#register` on Node 26+ (#20028)
- Canonicalization: don't crash when plugin utilities throw for unsupported values (#20052)
- Allow `@apply` to be used with CSS mixins (#19427)
- Ensure `not-*` correctly negates `@container` queries, including `style(…)` queries (#20059)
- Ensure `drop-shadow-*` color utilities work with custom shadow values containing `calc(…)` (#20080)
- Fix 'Sourcemap is likely to be incorrect' warnings when using `@tailwindcss/vite` (#20103)

## Upgrade Command
```bash
npm install --save-exact tailwindcss@4.3.1
```