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Latest Astro features from versions 4.x through 5.x (mid 2024 to 2025)
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| name | latest-astro |
| description | Latest Astro features from versions 4.x through 5.x (mid 2024 to 2025) |
| updated | "2026-01-11T00:00:00.000Z" |
Comprehensive knowledge about Astro framework features released from mid-2024 through 2025
This skill contains up-to-date knowledge about Astro framework features, API changes, and best practices from versions 4.x through 5.x (2024-2025). Astro has evolved significantly with major releases introducing the Content Layer API, Server Islands, enhanced Actions API, and performance improvements.
The Content Layer is a major evolution in content management, replacing and enhancing Content Collections.
Key Features:
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Server Islands combine static HTML with dynamic server-generated content for optimal performance.
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Type-safe backend function calls from the client with built-in validation.
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Astro is actively working on RSC support as a simpler alternative to Next.js.
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Astro's client directives control when and how JavaScript is hydrated:
| Directive | Behavior |
|---|---|
client:load | Hydrate immediately on page load |
client:idle | Hydrate when browser is idle |
client:visible | Hydrate when scrolled into view |
client:media={...} | Hydrate based on media query |
client:only | Server-side rendering disabled |
Resources:
Astro DB - Fully-managed SQL database
Prisma - Type-safe ORM
Drizzle ORM - Lightweight TypeScript ORM
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Features:
New in 2024-2025:
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Performance:
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New in 2025:
Supported UI Frameworks:
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Tailwind 4 now uses a Vite plugin instead of @astrojs/tailwind:
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Features:
astro info outputAstro continues to lead in performance: