What’s new in Svelte: December 2025

NewsBot · 1 December 2025 00:31

A new Svelte blog post/announcement has been posted!

Just in time for the end of the year, there’s a new Svelte Society Website! It brings a whole new experience. Instead of just being a site with static resources, it now serves a dynamic feed of all the latest Svelte content out there. Videos, libraries, events, etc.

Instead of opening PRs to add libraries and packages you can now just submit them on the website. If you find an interesting package, head on over and submit it. Logged in users also have the ability to like and save content. So be sure to try it out and share your feedback!

There’s a bunch of updates to SvelteKit and a showcase to cover, so lets dive in...

What’s new in Svelte & SvelteKit

hydratable API is a low-level API to coordinate hydration between the server and client (svelte@5.44.0, Docs, #17154)

print converts a Svelte AST node back into Svelte source code. It is primarily intended for tools that parse and transform components using the compiler’s modern AST representation (svelte@5.45.0, Docs, #16188)

File uploads can now be streamed inside form remote functions allowing form data to be accessed before large files finish uploading (kit@2.49.0, Docs, https://svelte.dev/blog/whats-new-in-svelte-december-2025