astro/.changeset/eighty-boxes-applaud.md

---
'astro': major
---

Makes `astro:env` stable

To upgrade, update your Astro config:

```diff
import { defineConfig, envField } from 'astro/config'

export default defineConfig({
-    experimental: {
        env: {
            schema: {
                FOO: envField.string({ /* ... */ })
            }
        }
-    }
})
```