# Astro astro@5.15.7 — Release & Upgrade Intelligence
- **Product:** Astro (https://astro.build)
- **Version:** astro@5.15.7
- **Released:** Nov 14, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/astro/updates/astro-5.15.7/

## Executive Summary (TL;DR)
Astro astro@5.15.7. Source highlight: Fixes a case where `process.env` wouldn't be properly populated during the build

## Bug Fixes
- Fixes a case where `process.env` wouldn't be properly populated during the build
- Fixes a bug where Astro's i18n fallback system with `fallbackType: 'rewrite'` would not generate fallback files for pages whose filename started with a locale key.

## Upgrade Command
```bash
npm install --save-exact astro@5.15.7
```