Astro 7.0.7

Astro 7.0.7 dropped today and honestly? It's one of those patch releases that punches above its weight. Five fixes, zero new features, but every single one addresses a real pain point. Let's break it down.

TL;DR: If you're using CSS modules with LightningCSS and content collections, definitely upgrade. If not, you still want this for the memory leak fix alone.

The Bad: What Was Broken

CSS Module Hash Mismatch — This one's been biting people. When you import a CSS module inside a component that gets rendered via content collection render(), the class name hashes in the DOM element and the injected <style> tag would differ. Your styles just... didn't apply. 7.0.7 aligns both sides of the equation so your buttons look like buttons again. (#17318)

Memory Leak in Dev Server — Node.js was straight-up emitting warnings about it. Every hot reload was leaking. If you've been seeing those dreaded "MaxListenersExceededWarning" messages, this is your fix. (#17323)

Dev Server Crash on .html Probes — Tools like Netlify Dev send /index.html style probe requests. If they hit a dynamic endpoint route, Astro would crash with a TypeError: Missing parameter. Now it handles them gracefully. Same PR as above.

CSS @import Mishandling — During production builds, inline CSS chunks could get merged in a way that shoves @import rules into the middle of the stylesheet. Browsers silently ignore @import rules that aren't at the top, so your imports just... vanished. Fixed by ensuring @import always stays at the top after chunk merging. (#17325)

Preload Markers Left Behind — Another build regression: inlined scripts in certain configurations could end up with unresolved preload markers that broke resource hinting. Cleaned up in the same round of fixes.

The Verdict

7.0.7 is a solid patch. No breaking changes, no new APIs to learn, just a cleaner, stabler Astro. Run npx astro@latest upgrade or bump your dependency and move on with your day.

Big ups to ematipico and the Houston bot for squashing these bugs. Full changelog on GitHub if you're into that sort of thing.