Svelte blog

The SvelteKit 3 Release Candidate is here

Thu, 13 Aug 2026 00:00:00 GMT

We've cleaned out the junk drawer

What's new in Svelte: August 2026

Sat, 01 Aug 2026 00:00:00 GMT

The SvelteKit 3 preview lands with new $app modules, zero-config error props and refreshAll

What's new in Svelte: July 2026

Wed, 01 Jul 2026 00:00:00 GMT

SvelteKit config in vite.config, explicit env vars and new declaration tag support across the toolchain

What's new in Svelte: June 2026

Mon, 01 Jun 2026 00:00:00 GMT

Better forms, new long-lived remote query APIs and TypeScript 6 support in language-tools

What's new in Svelte: May 2026

Fri, 01 May 2026 00:00:00 GMT

Svelte CLI Community Add-ons, TypeScript 6.0 support in SvelteKit

What's new in Svelte: April 2026

Wed, 01 Apr 2026 00:00:00 GMT

MCP in OpenCode, functions in config and error boundaries on the server

What's new in Svelte: March 2026

Sun, 01 Mar 2026 00:00:00 GMT

createContext in programmatic Svelte, comments in HTML tags and the State of JS

What's new in Svelte: February 2026

Sun, 01 Feb 2026 00:00:00 GMT

Custom select elements, new button props for remote functions and improvements across the Node and Vercel adapters

CVEs affecting the Svelte ecosystem

Thu, 15 Jan 2026 00:00:00 GMT

Time to upgrade

What's new in Svelte: January 2026

Thu, 01 Jan 2026 00:00:00 GMT

Hydration with CSPs, automatic Cloudflare adapter setup, and AI works better now with Svelte!

What's new in Svelte: December 2025

Mon, 01 Dec 2025 00:00:00 GMT

A new Svelte Society website and file upload streaming in forms

Advent of Svelte is back

Mon, 01 Dec 2025 00:00:00 GMT

We've pivoted to video

What's new in Svelte: November 2025

Sat, 01 Nov 2025 00:00:00 GMT

Svelte MCP, typed contexts and improved form validation in remote functions

What's new in Svelte: October 2025

Wed, 01 Oct 2025 00:00:00 GMT

Improved Remote Functions, sv create from playgrounds and experimental async SSR

What's new in Svelte: September 2025

Mon, 01 Sep 2025 00:00:00 GMT

Deno support, await in consts and open telemetry support

Introducing integrated observability in SvelteKit

Mon, 18 Aug 2025 00:00:00 GMT

SvelteKit apps can now emit OpenTelemetry traces and reliably set up observability instrumentation using instrumentation.server.ts

What's new in Svelte: August 2025

Fri, 01 Aug 2025 00:00:00 GMT

Async Svelte is out - with all the fixins

What's new in Svelte: July 2025

Tue, 01 Jul 2025 00:00:00 GMT

Vite 7 and Rolldown support, better traces and vitest browser mode support

What's new in Svelte: June 2025

Sun, 01 Jun 2025 00:00:00 GMT

Attachments are the new actions, plus better snippets and classes

Bringing Svelte Summit to the whole community

Wed, 21 May 2025 00:00:00 GMT

We're sponsoring the release of talks from Barcelona, starting this weekend

What's new in Svelte: May 2025

Thu, 01 May 2025 00:00:00 GMT

Svelte Summit soon! Plus, await in components

What's new in Svelte: April 2025

Tue, 01 Apr 2025 00:00:00 GMT

Writable $derived statements, async reroute and better request event access

What's new in Svelte: March 2025

Sat, 01 Mar 2025 00:00:00 GMT

Congrats to the SvelteHack winners! Plus improved SSR in Svelte and SvelteKit

What's new in Svelte: February 2025

Sat, 01 Feb 2025 00:00:00 GMT

New types, pnpm 10 support and better syntax highlighting

What's new in Svelte: January 2025

Wed, 01 Jan 2025 00:00:00 GMT

Svelte 5 just keeps getting better. Plus, an in-person Svelte Summit!

What's new in Svelte: December 2024

Sun, 01 Dec 2024 00:00:00 GMT

A better CLI and a bunch of UI libraries now support Svelte 5

Advent of Svelte

Sun, 01 Dec 2024 00:00:00 GMT

Twenty-four days, twenty-four features

What's new in Svelte: November 2024

Fri, 01 Nov 2024 00:00:00 GMT

New features in Svelte 5 and a ton of new community libraries

Introducing the new Svelte CLI

Thu, 24 Oct 2024 00:00:00 GMT

Tailwind, auth, databases and more — just an `npx sv` away

Svelte 5 is alive

Tue, 22 Oct 2024 00:00:00 GMT

Our biggest release yet

The Omnisite

Mon, 21 Oct 2024 00:00:00 GMT

Your one-stop-shop for everything Svelte

What's new in Svelte: October 2024

Tue, 01 Oct 2024 00:00:00 GMT

Better each blocks and a callstack for infinite loops

What's new in Svelte: September 2024

Sun, 01 Sep 2024 00:00:00 GMT

More useful `svelte:options` and `:global`, plus the deprecation of `` in Svelte 5

What's new in Svelte: August 2024

Thu, 01 Aug 2024 00:00:00 GMT

Significant hydration improvements, customizable warnings, and a new API: `createRawSnippet`

What's new in Svelte: July 2024

Mon, 01 Jul 2024 00:00:00 GMT

svelte/events, simpler elements and more optional options

What's new in Svelte: June 2024

Sat, 01 Jun 2024 00:00:00 GMT

Better `bind`s, migration tooling and a new comparison rune

What's new in Svelte: May 2024

Wed, 01 May 2024 00:00:00 GMT

Svelte 5 Release Candidate and all the other highlights from Svelte Summit Spring

Svelte 5 Release Candidate

Tue, 30 Apr 2024 00:00:00 GMT

We're almost there

What's new in Svelte: April 2024

Mon, 01 Apr 2024 00:00:00 GMT

Svelte Summit Spring on April 27! Plus: reactive `Map`, `Date` and `Set`

What's new in Svelte: March 2024

Fri, 01 Mar 2024 00:00:00 GMT

Nested CSS support and a much cleaner client-side API for Svelte 5

What's new in Svelte: February 2024

Thu, 01 Feb 2024 00:00:00 GMT

New in Kit: `reroute`, `emulate` and more!

What's new in Svelte: January 2024

Mon, 01 Jan 2024 00:00:00 GMT

SvelteKit 2 and a much-improved $state rune

Announcing SvelteKit 2

Thu, 14 Dec 2023 00:00:00 GMT

A special SvelteKit anniversary release

What's new in Svelte: December 2023

Fri, 01 Dec 2023 00:00:00 GMT

Svelte 5 preview announced at Svelte Summit Fall 2023

What's new in Svelte: November 2023

Wed, 01 Nov 2023 00:00:00 GMT

Svelte Summit on Nov 11 and better DevEx for all!

What's new in Svelte: October 2023

Sun, 01 Oct 2023 00:00:00 GMT

Reactions to Runes and SvelteKit +server fallbacks

Hacktoberfest 2023 with SvelteKit

Sun, 01 Oct 2023 00:00:00 GMT

SvelteKit joins in the Hacktoberfest event in 2023

Introducing runes

Wed, 20 Sep 2023 00:00:00 GMT

Rethinking 'rethinking reactivity'

What's new in Svelte: September 2023

Fri, 01 Sep 2023 00:00:00 GMT

New parameters in SvelteKit's redirect and an onNavigate lifecycle function come to life

Unlocking view transitions in SvelteKit 1.24

Thu, 31 Aug 2023 00:00:00 GMT

Streamlined page transitions with onNavigate

What's new in Svelte: August 2023

Tue, 01 Aug 2023 00:00:00 GMT

Extending Custom Element Classes and new +server exports

What's new in Svelte: July 2023

Sat, 01 Jul 2023 00:00:00 GMT

Svelte 4.0, new website and a tour around the community

svelte.dev: A complete overhaul

Thu, 29 Jun 2023 00:00:00 GMT

The new site comes with accessibility fixes, new features and bottom navbar

Announcing Svelte 4

Thu, 22 Jun 2023 00:00:00 GMT

Updated performance, developer experience, and site

What's new in Svelte: June 2023

Thu, 01 Jun 2023 00:00:00 GMT

SvelteHack winners, lots of new bindings, Svelte 4.0.0-next.0, and a bunch of new features in SvelteKit

What's new in Svelte: May 2023

Mon, 01 May 2023 00:00:00 GMT

New Ambassadors, a new ESLint plugin and a whole bunch of SvelteHack submissions

What's new in Svelte: April 2023

Sat, 01 Apr 2023 00:00:00 GMT

Loads of new Svelte compiler features, plus Svelte Summit and SvelteHack

Zero-effort type safety

Thu, 09 Mar 2023 00:00:00 GMT

More convenience and correctness, less boilerplate

What's new in Svelte: March 2023

Wed, 01 Mar 2023 00:00:00 GMT

SvelteHack, post-1.0 SvelteKit improvements and a huge showcase

Streaming, snapshots, and other new features since SvelteKit 1.0

Tue, 21 Feb 2023 00:00:00 GMT

Exciting improvements in the latest version of SvelteKit

What's new in Svelte: February 2023

Wed, 01 Feb 2023 00:00:00 GMT

Minor versions and major satisfaction

What's new in Svelte: January 2023

Sun, 01 Jan 2023 00:00:00 GMT

SvelteKit 1.0, tutorial, and type definitions for Svelte elements.

Announcing SvelteKit 1.0

Wed, 14 Dec 2022 00:00:00 GMT

Web development, streamlined

What's new in Svelte: December 2022

Thu, 01 Dec 2022 00:00:00 GMT

Rounding the corner to SvelteKit 1.0

What's new in Svelte: November 2022

Tue, 01 Nov 2022 00:00:00 GMT

Better forms, routes and inline styles across SvelteKit and Svelte

What's new in Svelte: October 2022

Sat, 01 Oct 2022 00:00:00 GMT

Svelte Summit, `use:enhance`, and a SvelteKit Release Candidate!

What's new in Svelte: September 2022

Thu, 01 Sep 2022 00:00:00 GMT

Migrating to SvelteKit's new filesystem-based router

What's new in Svelte: August 2022

Mon, 01 Aug 2022 00:00:00 GMT

Changes to SvelteKit's `load` before 1.0 plus support for Vite 3 and `vite.config.js`!

What's new in Svelte: July 2022

Fri, 01 Jul 2022 00:00:00 GMT

Faster SSR, language tools improvements and a new paid contributor!

What's new in Svelte: June 2022

Wed, 01 Jun 2022 00:00:00 GMT

Cancellable dispatched events, deeper {@const} declarations and more!

What's new in Svelte: May 2022

Sun, 01 May 2022 00:00:00 GMT

Dynamically switch between HTML element types with ``

What's new in Svelte: April 2022

Fri, 01 Apr 2022 00:00:00 GMT

Goodbye fallthrough routes, hello param validators!

What's new in Svelte: March 2022

Tue, 01 Mar 2022 00:00:00 GMT

Svelte Summit Spring is coming... and page endpoints are here!

What's new in Svelte: February 2022

Tue, 01 Feb 2022 00:00:00 GMT

Rapid-fire releases across Svelte, SvelteKit and the community

Accelerating Svelte's Development

Thu, 13 Jan 2022 00:00:00 GMT

Scaling the team, building partnerships, and growing the community

What's new in Svelte: January 2022

Sat, 01 Jan 2022 00:00:00 GMT

Faster builds with SvelteKit and a much anticipated REPL feature

What's new in Svelte: December 2021

Wed, 01 Dec 2021 00:00:00 GMT

Svelte Summit Fall 2021 Recap, Rich Harris joins Vercel, and Kevin goes full-time on Svelte Society

What's new in Svelte: November 2021

Mon, 01 Nov 2021 00:00:00 GMT

Over 5000 stars to light up the showcase

What's new in Svelte: October 2021

Fri, 01 Oct 2021 00:00:00 GMT

A whole year of "What's new in Svelte"

What's new in Svelte: September 2021

Wed, 01 Sep 2021 00:00:00 GMT

StackOverflow's most loved web framework

What's new in Svelte: August 2021

Sun, 01 Aug 2021 00:00:00 GMT

Shadow DOM, export and await - oh my!

What's new in Svelte: July 2021

Thu, 01 Jul 2021 00:00:00 GMT

Keeping cool with fixes, TypeScript tooling and tonnes of new features

What's new in Svelte: June 2021

Tue, 01 Jun 2021 00:00:00 GMT

Progress towards SvelteKit 1.0 and tighter TypeScript/Svelte integrations in language tools

What's new in Svelte: May 2021

Sat, 01 May 2021 00:00:00 GMT

Working toward SvelteKit 1.0 and a showcase full of SvelteKit sites!

What's new in Svelte: April 2021

Thu, 01 Apr 2021 00:00:00 GMT

SvelteKit beta and new way to use slots

SvelteKit is in public beta

Tue, 23 Mar 2021 00:00:00 GMT

And we'd love to have your feedback

What's new in Svelte: March 2021

Mon, 01 Mar 2021 00:00:00 GMT

Call for Svelte Summit Speakers! Improved SSR, non-HTML5 compilation targets, and ESLint TypeScript support

What's new in Svelte: February 2021

Mon, 01 Feb 2021 00:00:00 GMT

Integrations and improvements at lightning speed...

What's new in Svelte: January 2021

Fri, 01 Jan 2021 00:00:00 GMT

A Svelte-packed showcase to kick-off the new year!

What's new in Svelte: December 2020

Tue, 01 Dec 2020 00:00:00 GMT

Better tooling, export maps and improvements to slots and context

What's the deal with SvelteKit?

Thu, 05 Nov 2020 00:00:00 GMT

We're rethinking how to build Svelte apps. Here's what you need to know

What's new in Svelte: November 2020

Sun, 01 Nov 2020 00:00:00 GMT

Slot forwarding fixes, SvelteKit for faster local development, and more from Svelte Summit

What's new in Svelte: October 2020

Thu, 01 Oct 2020 00:00:00 GMT

New object methods, in-depth learning resources and tons of integration examples!

Svelte <3 TypeScript

Fri, 17 Jul 2020 00:00:00 GMT

Typernetically enhanced web apps

Svelte 3: Rethinking reactivity

Mon, 22 Apr 2019 00:00:00 GMT

It's finally here

Write less code

Sat, 20 Apr 2019 00:00:00 GMT

The most important metric you're not paying attention to

Svelte for new developers

Tue, 16 Apr 2019 00:00:00 GMT

Never used Node.js or the command line? No problem

Svelte on The Changelog

Thu, 31 Jan 2019 00:00:00 GMT

Listen to the interview here

Virtual DOM is pure overhead

Thu, 27 Dec 2018 00:00:00 GMT

Let's retire the 'virtual DOM is fast' myth once and for all

Using CSS-in-JS with Svelte

Wed, 26 Dec 2018 00:00:00 GMT

You don't need to, but you can

Svelte v2 is out!

Wed, 18 Apr 2018 00:00:00 GMT

Here's what you need to know

Sapper: Towards the ideal web app framework

Sun, 31 Dec 2017 00:00:00 GMT

Taking the next-plus-one step

The zen of Just Writing CSS

Wed, 06 Sep 2017 00:00:00 GMT

I would say this is the future, but we're already doing it.

Frameworks without the framework: why didn't we think of this sooner?

Sat, 26 Nov 2016 00:00:00 GMT

You can't write serious applications in vanilla JavaScript without hitting a complexity wall. But a compiler can do it for you.