# Astro astro@6.0.7 — Release & Upgrade Intelligence
- **Product:** Astro (https://astro.build)
- **Version:** astro@6.0.7
- **Released:** Mar 19, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/astro/updates/astro-6.0.7/

## Executive Summary (TL;DR)
Astro astro@6.0.7. Source highlight: Fixes a build regression in projects with multiple frontend integrations where `server:defer` server islands could fail at runtime when all pages are prerendered.

## Bug Fixes
- Fixes a build regression in projects with multiple frontend integrations where `server:defer` server islands could fail at runtime when all pages are prerendered.
- Fix styles from dynamically imported components not being injected on first dev server load.
- Fixes `renderMarkdown` in custom content loaders not resolving images in markdown content. Images referenced in markdown processed by `renderMarkdown` are now correctly optimized, matching the behavior of the built-in `glob()` loader.
- Fixes an issue where `Astro.currentLocale` would always be the default locale instead of the actual one when using a dynamic route like `[locale].astro` or `[locale]/index.astro`. It now resolves to the correct locale from the URL.
- Fixes an issue where visiting an invalid locale URL (e.g. `/asdf/`) would show the content of a dynamic `[locale]` page with a 404 status code, instead of showing your custom 404 page. Now, the correct 404 page is rendered when the locale in the URL doesn't match any configured locale.
- Fixes Cloudflare dev server islands with `prerenderEnvironment: 'node'` by sharing the serialized manifest encryption key across dev environments and routing server island requests through the SSR runtime.

## Upgrade Command
```bash
npm install --save-exact astro@6.0.7
```