# Tailwind CSS v1.8.9 — Release & Upgrade Intelligence
- **Product:** Tailwind CSS (https://tailwindcss.com)
- **Version:** v1.8.9
- **Released:** Sep 13, 2020
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/tailwind/updates/v1.8.9/

## Executive Summary (TL;DR)
Tailwind CSS v1.8.9. Source highlight: Add negative spacing values to inset plugin in the `extendedSpacingScale` experiment (#2358)

## New Features
- Add `future` section to config stubs (#2372, 3090b98)

## Bug Fixes
- Add negative spacing values to inset plugin in the `extendedSpacingScale` experiment (#2358)
- Fix issue where `!important` was stripped from declarations within rules that used `@apply` with `applyComplexClasses` (#2376)

## Upgrade Command
```bash
npm install --save-exact tailwindcss@1.8.9
```