# Astro astro@7.4.2 — Release & Upgrade Intelligence
- **Product:** Astro (https://astro.build)
- **Version:** astro@7.4.2
- **Released:** Oct 21, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/astro/updates/astro-7.4.2/

## Executive Summary (TL;DR)
Astro astro@7.4.2. Source highlight: Speeds up content sync with `experimental.collectionStorage: "chunked"` by computing each character's UTF-8 width from its code point instead of encoding every character through `TextEncoder`. On a store of ~44k entries this cuts the chunking step from about 60 seconds to well under a second, with b

## Bug Fixes
- Speeds up content sync with `experimental.collectionStorage: "chunked"` by computing each character's UTF-8 width from its code point instead of encoding every character through `TextEncoder`. On a store of ~44k entries this cuts the chunking step from about 60 seconds to well under a second, with byte-identical output.
- Fixes `astro dev` with `@astrojs/cloudflare` failing with ``Calling `require` for "node-fetch"`` when a server dependency such as `cross-fetch` requires `node-fetch`
- Fixes `astro dev` treating a stale lock file containing a Linux thread ID as a running Astro server. A successful process lookup with no matching PID now marks the lock as stale, preventing `astro dev stop` and `astro dev --force` from killing the unrelated process that owns the thread.
- Fixes the `defineConfig()` types for `i18n.defaultLocale`, `i18n.fallback`, and `i18n.domains` so they accept a custom locale's `path` instead of its `codes`, matching how Astro validates and uses these values
- Bumps the minimum supported Node.js version to 22.23.4, which includes the fixes from the October 2026 Node.js security releases
- Fixes `astro sync`, `astro check` and `astro build` replacing the optimized dependencies of a dev server running in the same project, which broke framework islands in that dev server until it was restarted with `--force`

## Upgrade Command
```bash
npm install --save-exact astro@7.4.2
```