- Astro Weekly
- Posts
- Astro Weekly #110
Astro Weekly #110
Astro 5.16 brings SVG optimization, learn how to build API endpoints, caching CI assets for lightning-fast builds

Hello Astronauts,
This week, Astro is moving faster than ever.
Astro 5.16 has landed with experimental new features, plus a host of DX improvements to make your workflow even smoother.
On top of that, the community has been busy building API endpoints and turbo‑charged CI caching to keep sites fast, lean, and ready for lift-off.
Let’s dive in! 🚀
What’s new with Astro 🗞️
Fresh features, updates, and announcements. The latest from Astro HQ!

Say goodbye to thicc SVGs
Astro 5.16 lands with SVG superpowers ✨
Astro 5.16 delivers experimental SVG optimization, smoother preview controls, improved agent support, and a collection of DX and performance enhancements.
Here’s what’s new in Astro 5.16:
🖼️ Experimental SVG optimization: Automatically compress and clean up SVGs using built-in SVGO support, reducing file size with no drop in visual quality.
⌨️ Interactive preview shortcuts:
astro previewnow supports hotkeys likeo + enterto open in the browser andq + enterto quit, matching the dev server experience.🤖 Better agent support:
astro add --yesmakes it easier for AI tools and automated scripts to install integrations without getting stuck on prompts.🅰️ ActionInputSchema utility: Extract your action’s input schema as a TypeScript type for cleaner abstractions, reusable handlers, and better type inference.
📦 Lighter Netlify adapter: Updating
@netlify/functionsremoves 310 dependencies and cuts 82 MB from the adapter’s dependency tree.
To upgrade, run npx @astrojs/upgrade, or explore the full Astro 5.16 release notes for all the details.
Astro Boosters 🚀
Fueling the mission — brought to you by this week’s sponsor.
Introducing the first AI-native CRM
Connect your email, and you’ll instantly get a CRM with enriched customer insights and a platform that grows with your business.
With AI at the core, Attio lets you:
Prospect and route leads with research agents
Get real-time insights during customer calls
Build powerful automations for your complex workflows
Join industry leaders like Granola, Taskrabbit, Flatfile and more.
Astro Community 🧑🚀
Spotlight on what’s shining in the Astroverse.

API magic, Astro style
Build API endpoints the Astro way 🔌
Astro isn’t just for static pages, its built-in endpoints let you serve dynamic data easily, without a separate backend.
This guide walks you through fetching external APIs securely, exposing JSON, and rendering it in your pages, showing how Astro keeps things simple, fast, and fun.

Cache it like it’s hot
Caching Astro build assets on CI ⚡
Long GitHub Actions build times got this Astro user down, so they cached API responses, optimized images, and Satori-generated OG images.
The post walks through fetch-level caching and GitHub Actions integration, showing how to skip unnecessary requests and speed up builds.
Spotted in the Astroverse 🪐
A few standout posts from the community that grabbed my attention!
If you have something awesome you’d like to share with the Astro community, you can reach me at [email protected] or via DM on X
Blazing-fast Astro themes ⚡

Elevate your content and SEO
Feather is the ultimate Astro blog template for authors and writers seeking a seamless blend of beautiful design and powerful SEO.
With elegant typography, a focus on readability, and flawless Core Web Vitals, it’s built to elevate your content and your search ranking.
SAVE 50% WITH CODE BLACKFRIDAY25 FOR LIMITED TIME ONLY.
Astro on X 🛰️
Tuning in to the Astro frequency on X!
Astro Boosters 🚀
Fueling the mission — brought to you by this week’s sponsor.
Want to get the most out of ChatGPT?
ChatGPT is a superpower if you know how to use it correctly.
Discover how HubSpot's guide to AI can elevate both your productivity and creativity to get more things done.
Learn to automate tasks, enhance decision-making, and foster innovation with the power of AI.
Astro Showcase 🤩
Fresh from the launchpad: Astro sites worth a look!
That’s everything for this week!
Got an Astro project, tutorial, or tip to share? You can send it my way at [email protected] or drop a DM on X.
Wishing all our readers in the U.S. a happy Thanksgiving! 🦃
Catch you in the next one!
– Nathan 🧑🚀




