# Astro astro@7.3.4 — Release & Upgrade Intelligence
- **Product:** Astro (https://astro.build)
- **Version:** astro@7.3.4
- **Released:** Sep 22, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/astro/updates/astro-7.3.4/

## Executive Summary (TL;DR)
Astro astro@7.3.4. Source highlight: Fixes incremental builds repeatedly rendering unchanged pages when modules or compiled CSS reference bundled assets.

## Bug Fixes
- Fixes incremental builds repeatedly rendering unchanged pages when modules or compiled CSS reference bundled assets.
- Improves the `astro check` error shown for TypeScript 7. The command now explains that TypeScript 7 is not currently supported and provides instructions for experimentally type-checking Astro files with TypeScript 7.1 and `@astrojs/ts-content-mapper`.
- Fix double-escaped ampersands in Markdown image `alt` and `title` attributes. The `__ASTRO_IMAGE_` round-trip now decodes the numeric (`&`) and named (`&`) character references the Markdown processors emit, so an `&` in an alt or title is escaped exactly once in the final HTML instead of twice.
- Fix three error names that did not match their documented reference. `MissingLocale`, `MissingIndexForInternationalization` and `NoManifestAvailable` reported names ending in `Error` in the dev overlay, while their error reference pages are published under the unsuffixed names, so the name shown to users could not be found in the docs.
- Fixes the dev server re-evaluating the whole server module graph on every request. The `astro:head-metadata` plugin invalidated its component metadata virtual module from its own `transform` hook, so each evaluation of that module scheduled the next one. Adapters that run requests outside Vite's module runner, such as `@astrojs/cloudflare`, paid for a full re-evaluation of the server graph on every request for the lifetime of the process.
- Fixes domain-based i18n routing to respect `security.allowedDomains` when selecting a locale from request host headers

## Upgrade Command
```bash
npm install --save-exact astro@7.3.4
```