# Astro astro@5.18.2 — Release & Upgrade Intelligence
- **Product:** Astro (https://astro.build)
- **Version:** astro@5.18.2
- **Released:** May 26, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/astro/updates/astro-5.18.2/

## Executive Summary (TL;DR)
Astro astro@5.18.2. Source highlight: Populates styles in the SSR manifest for prerendered routes. Previously, prerendered routes had `styles: []` in the manifest, making it impossible for workers or middleware to discover which CSS files a prerendered page uses.

## Bug Fixes
- Populates styles in the SSR manifest for prerendered routes. Previously, prerendered routes had `styles: []` in the manifest, making it impossible for workers or middleware to discover which CSS files a prerendered page uses.

## Upgrade Command
```bash
npm install --save-exact astro@5.18.2
```