What’s new in Svelte: September 2026
New SvelteMap methods in Svelte 5.57, more SvelteKit 3 iteration and sv 1.0 previews SvelteKit 3 migrations
Blog
The SvelteKit 3 Release Candidate is here
We’ve cleaned out the junk drawer
What’s new in Svelte: August 2026
The SvelteKit 3 preview lands with new $app modules, zero-config error props and refreshAll
What’s new in Svelte: July 2026
SvelteKit config in vite.config, explicit env vars and new declaration tag support across the toolchain
What’s new in Svelte: June 2026
Better forms, new long-lived remote query APIs and TypeScript 6 support in language-tools
What’s new in Svelte: May 2026
Svelte CLI Community Add-ons, TypeScript 6.0 support in SvelteKit
What’s new in Svelte: April 2026
MCP in OpenCode, functions in config and error boundaries on the server
What’s new in Svelte: March 2026
createContext in programmatic Svelte, comments in HTML tags and the State of JS
What’s new in Svelte: February 2026
Custom select elements, new button props for remote functions and improvements across the Node and Vercel adapters
CVEs affecting the Svelte ecosystem
Time to upgrade
What’s new in Svelte: January 2026
Hydration with CSPs, automatic Cloudflare adapter setup, and AI works better now with Svelte!
What’s new in Svelte: December 2025
A new Svelte Society website and file upload streaming in forms
Advent of Svelte is back
We’ve pivoted to video
What’s new in Svelte: November 2025
Svelte MCP, typed contexts and improved form validation in remote functions
What’s new in Svelte: October 2025
Improved Remote Functions, sv create from playgrounds and experimental async SSR
What’s new in Svelte: September 2025
Deno support, await in consts and open telemetry support
Introducing integrated observability in SvelteKit
SvelteKit apps can now emit OpenTelemetry traces and reliably set up observability instrumentation using instrumentation.server.ts
What’s new in Svelte: August 2025
Async Svelte is out - with all the fixins
What’s new in Svelte: July 2025
Vite 7 and Rolldown support, better traces and vitest browser mode support
What’s new in Svelte: June 2025
Attachments are the new actions, plus better snippets and classes
Bringing Svelte Summit to the whole community
We’re sponsoring the release of talks from Barcelona, starting this weekend
What’s new in Svelte: May 2025
Svelte Summit soon! Plus, await in components
What’s new in Svelte: April 2025
Writable $derived statements, async reroute and better request event access
What’s new in Svelte: March 2025
Congrats to the SvelteHack winners! Plus improved SSR in Svelte and SvelteKit
What’s new in Svelte: February 2025
New types, pnpm 10 support and better syntax highlighting
What’s new in Svelte: January 2025
Svelte 5 just keeps getting better. Plus, an in-person Svelte Summit!
What’s new in Svelte: December 2024
A better CLI and a bunch of UI libraries now support Svelte 5
Advent of Svelte
Twenty-four days, twenty-four features