# Astro astro@7.3.6 — Release & Upgrade Intelligence
- **Product:** Astro (https://astro.build)
- **Version:** astro@7.3.6
- **Released:** Oct 06, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/astro/updates/astro-7.3.6/

## Executive Summary (TL;DR)
Astro astro@7.3.6. Source highlight: Fixes an intermittent dev server crash when using `astro:actions` inside a server island with adapters that use a pre-bundled SSR environment (e.g. `@astrojs/cloudflare`)

## Bug Fixes
- Fixes an intermittent dev server crash when using `astro:actions` inside a server island with adapters that use a pre-bundled SSR environment (e.g. `@astrojs/cloudflare`)
- Fixes stale scoped styles during HMR when both markup and `<style>` are changed in a single save
- Fixes CSS from other pages leaking into a page's `<head>` in dev when the page imports a module such as `astro:config/server`.
- Fixes a bug where server islands containing framework components rendered empty in the dev server when using a custom `src/fetch.ts`
- Fixes the composable `i18n()` handler from `astro/fetch` and `astro/hono` returning an empty 404 for paths without a locale prefix. It now renders the custom 404 page, matching `astro()`.
- Fixes CSS Module HMR in dev when a component is rendered both with and without hydration on the same page. Astro now uses path-based class name hashing in dev mode so that editing CSS declarations no longer changes the generated selectors, allowing Vite's CSS HMR to update styles without a full page reload.

## Upgrade Command
```bash
npm install --save-exact astro@7.3.6
```