Summary & Key Takeaways ​

• SvelteKit 3's first @next releases are now available for preview. • Key changes include new $app/manifest and $app/service-worker modules. • Shallow routing is now built into goto via a new state option. • refreshAll replaces the deprecated invalidateAll function. • error(status, {...}) is deprecated, requiring a message. • Stable SvelteKit releases added a submitted property for remote forms. • defineEnvVars moved to a dedicated @sveltejs/kit/env subpath. • Svelte Summit Ljubljana 2026 is scheduled for November 19-20.

Our Commentary ​

We're seeing the first glimpses of SvelteKit 3, and it's a lot to take in. Shallow routing baked into goto is a big one, simplifying navigation state. The deprecations like invalidateAll and the error signature change feel like necessary evolutions, but I'm always a little wary of breaking changes, even in previews. It's exciting to see the framework push forward, but also a reminder that keeping up can be a full-time job.