# Astro astro@7.3.8 — Release & Upgrade Intelligence
- **Product:** Astro (https://astro.build)
- **Version:** astro@7.3.8
- **Released:** Oct 08, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/astro/updates/astro-7.3.8/

## Executive Summary (TL;DR)
Astro astro@7.3.8. Source highlight: Fixes `Astro.cache` being `undefined` when a custom 404 or 500 page is rendered by the error handler, for example after a request to an API route with an HTTP method the route doesn't export

## Bug Fixes
- Fixes `Astro.cache` being `undefined` when a custom 404 or 500 page is rendered by the error handler, for example after a request to an API route with an HTTP method the route doesn't export
- Fixes `astro add` removing existing `allowBuilds` approvals from `pnpm-workspace.yaml` with pnpm v11.0–v11.22
- Refactors internal bundling and code transforms to use Vite's Oxc-based `transformWithOxc` and Rolldown instead of esbuild. These packages no longer depend on esbuild directly.
- Fixes the `glob()` loader not reloading changed files in dev when the pattern starts with an extglob such as `!(drafts)/**/*.md`

## Upgrade Command
```bash
npm install --save-exact astro@7.3.8
```