--- title: "What's new in Svelte: February 2022" description: 'Rapid-fire releases across Svelte, SvelteKit and the community' author: Dani Sandoval authorURL: https://dreamindani.com --- Happy February, everyone! Over the last month or so, we've seen Svelte and SvelteKit [develop at rapid speed](accelerating-sveltes-development), new community rules across the [Reddit](https://www.reddit.com/r/sveltejs/comments/s9n8ou/new_rules/), [GitHub](https://github.com/sveltejs/community/blob/main/CODE_OF_CONDUCT.md) and [Discord](https://discord.com/channels/457912077277855764/831611707667382303/935264550436102315), and quite a few amazing apps, tutorials and libraries. Let's take a look... ## Highlights from the Svelte changelog - **3.45.0** brought a [new a11y warning `a11y-no-redundant-roles`](https://svelte.dev/docs#accessibility-warnings-a11y-no-redundant-roles), destructuring and caching fixes - **3.46.0** added the much requested [`{@const}` tag](https://svelte.dev/docs#template-syntax-const) and [`style:` directive](https://svelte.dev/docs#template-syntax-element-directives-style-property) - Check out **3.46.1 - 3.46.3** for fixes to the `{@const}` tag and `style:` directive, along with a number of fixes to animations - [AST output is now available in the Svelte REPL](https://svelte.dev/repl/hello-world) ## What's new in SvelteKit - `inlineStyleThreshold` allows you to specify where inline stylesheets are inserted into the page ([Docs](https://kit.svelte.dev/docs/configuration#inlinestylethreshold), [#2620](https://github.com/sveltejs/kit/pull/2620)) - `beforeNavigate`/`afterNavigate` lifecycle functions lets you add functionality before or after a page navigation ([Docs](https://kit.svelte.dev/docs/modules#$app-navigation), [#3293](https://github.com/sveltejs/kit/pull/3293)) - Platform context can now be passed from adapters ([Docs](https://kit.svelte.dev/docs/adapters#supported-environments-platform-specific-context), [#3429](https://github.com/sveltejs/kit/pull/3429)) - Hooks now have an `ssr` parameter in `resolve` to make it easier to skip SSR, when needed ([Docs](https://kit.svelte.dev/docs/hooks#handle), [#2804](https://github.com/sveltejs/kit/pull/2804)) - `$page.stuff` provides a mechanism for pages to pass data 'upward' to layouts ([Docs](https://kit.svelte.dev/docs/loading#input-stuff), [#3252](https://github.com/sveltejs/kit/pull/3252)) - Fallthrough routes let you specify where to route when an route can't be loaded ([Docs](https://kit.svelte.dev/docs/routing#advanced-routing-fallthrough-routes), [#3217](https://github.com/sveltejs/kit/pull/3217)) **New configs** - Content Security Policy (CSP) is now supported for increased security when using inline javascript or stylesheets ([Docs](https://kit.svelte.dev/docs/configuration#csp), [#3499](https://github.com/sveltejs/kit/pull/3499)) - `kit.routes` config allows you to customise public/private modules during build ([Docs](https://kit.svelte.dev/docs/configuration#routes), [#3576](https://github.com/sveltejs/kit/pull/3576)) - `prerender.createIndexFiles` config lets you prerender index.html files as their subfolder's name ([Docs](https://kit.svelte.dev/docs/configuration#prerender), [#2632](https://github.com/sveltejs/kit/pull/2632)) - HTTP methods can now be overridden using `kit.methodOverride` ([Docs](https://kit.svelte.dev/docs/routing#endpoints-http-method-overrides), [#2989](https://github.com/sveltejs/kit/pull/2989)) **Config changes** - `config.kit.hydrate` and `config.kit.router` are now nested under `config.kit.browser` ([Docs](https://kit.svelte.dev/docs/configuration#browser), [3578](https://github.com/sveltejs/kit/pull/3578)) **Breaking change** - use `Request` and `Response` objects in endpoints and hooks ([#3384](https://github.com/sveltejs/kit/pull/3384)) --- ## Community Showcase **Apps & Sites** - [timb(re)](https://paullj.github.io/timb) is a live music programming environment - [Music for Programming](https://musicforprogramming.net/latest/) is a series of mixes intended for listening while `${task}` to focus the brain and inspire the mind - [Team Tale](https://teamtale.app/) allows two authors to write the same story in a tag-team sort of fashion - [Puzzlez](https://www.puzzlez.io/) is an online place to play Sudoku and Wordle - [Closed Caption Creator](https://www.closedcaptioncreator.com/) makes it easy to add subtitles to your video on Windows, Mac and Google Chrome - [SC3Lab](https://sc3-lab.netlify.app/) is a code generator for experimenting with svelte-cubed and three.js - [Donkeytype](https://github.com/0ql/Donkeytype) is a minimalistic and lightweight typingtest inspired by Monkeytype. - [Above](https://above.silas.pro/) is a visual routine timer built for the ADHD/autistic mind - [base.report](https://base.report/) is a modern research platform for serious investors - [String](https://string.kampsy.xyz/) turns your Phone into a secure portable audio recorder, making it easy to capture and share personal notes, family moments, classroom lectures, and more - [The Raytracer Challenge REPL](https://github.com/jakobwesthoff/the_raytracer_challenge_repl) provides a live editor interface to configure a raytraced scene and render it live in any modern browser - [awesome-svelte-kit](https://github.com/janosh/awesome-svelte-kit) is a list of awesome examples of SvelteKit in the wild - [Map Projection Explorer](https://www.geo-projections.com/) lets you explore different map projections and explains their differences - [Rubiks](https://github.com/MeharGaur/rubiks) is a Rubik's Cube simulator - [Pianisto](https://pianisto.net/) is a working piano made with SVG, ToneJS and a lot of patience Want to work on a SvelteKit site with others, [try contributing to the Svelte Society site](https://github.com/svelte-society/sveltesociety-2021/issues)! **Learning and Listening** _To Read_ - [Accelerating Svelte's Development](https://svelte.dev/blog/accelerating-sveltes-development) by Ben McCann - [Storybook for Vite](https://storybook.js.org/blog/storybook-for-vite/) - [Let's learn SvelteKit by building a static Markdown blog from scratch](https://joshcollinsworth.com/blog/build-static-sveltekit-markdown-blog) by Josh Collinsworth - [Building an iOS app with Svelte, Capacitor and Firebase](https://harryherskowitz.com/2022/01/05/tapedrop-app.html) by Harry Herskowitz - [Mutating Query Params in SvelteKit Without Page Reloads or Navigations](https://dev.to/mohamadharith/mutating-query-params-in-sveltekit-without-page-reloads-or-navigations-2i2b) and [Workaround for Bubbling Custom Events in Svelte](https://dev.to/mohamadharith/workaround-for-bubbling-custom-events-in-svelte-3khk) by Mohamad Harith - [How to build a full stack serverless application with Svelte and GraphQL](https://dev.to/shadid12/how-to-build-a-full-stack-serverless-application-with-svelte-graphql-and-fauna-5427) by Shadid Haque - [How to Deploy SvelteKit Apps to GitHub Pages](https://sveltesaas.com/articles/sveltekit-github-pages-guide/) - [Creating a dApp with SvelteKit](https://anthonyriley.org/2021/12/31/creating-a-dapp-with-sveltekit/) by Anthony Riley - [Comparing Svelte Reactivity Options](https://opendirective.net/2022/01/06/comparing-svelte-reactivity-options/) by Steve Lee _To Watch_ - [Integrating Storybook with SvelteKit](https://www.youtube.com/watch?v=Kc1ULlfyUcw) and [Integrating FaunaDB with Svelte](https://www.youtube.com/watch?v=zaoLZc76uZM) by the Svelte Sirens - [SvelteKit Crash Course Tutorial](https://www.youtube.com/watch?v=9OlLxkaeVvw&list=PL4cUxeGkcC9hpM9ARM59Ve3jqcb54dqiP) by The Net Ninja - [Svelte for Beginners](https://www.youtube.com/watch?v=BrkrOjknC_E&list=PLA9WiRZ-IS_ylnMYxIFCsZN6xVVSvLuHk) by Joy of Code - [SvelteKit For Beginners | Movie App Tutorial](https://www.youtube.com/watch?v=ydR_M0fw9Xc) by Dev Ed - [SvelteKit $app/stores](https://www.youtube.com/watch?v=gBPhr1xbgaQ) by lihautan - [Sveltekit - Get All Routes/Pages](https://www.youtube.com/watch?v=Y_NE2R3HuOU) by WebJeda _To Listen To_ - [New Year, New Svelte!?](https://share.transistor.fm/s/36212cdc) from Svelte Radio - [So much Sveltey goodness (featuring Rich Harris)](https://changelog.com/jsparty/205) from JS Party - [The Other Side of Tech: A Documentarian Perspective (with Stefan Kingham)](https://codingcat.dev/podcast/2-4-the-other-side-of-tech-a-documentarian-perspective) from Purrfect.dev **Libraries, Tools & Components** - [threlte](https://github.com/grischaerbe/threlte) is a three.js component library for Svelte - [svelte-formify](https://github.com/nodify-at/svelte-formify) is a library to manage and validate forms that uses decorators to define validations - [gQuery](https://github.com/leveluptuts/gQuery) is a GraphQL Fetcher & Cache for Svelte Kit - [Unlock-protocol](https://github.com/novum-insights/sveltekit-unlock-firebase) is an integration to help login with MetaMask, Firebase, and paywall customers - [AgnosticUI](https://github.com/AgnosticUI/agnosticui) is a set of UI primitives that start their lives in clean HTML and CSS - [Vitebook](https://github.com/vitebook/vitebook) is a fast and lightweight alternative to Storybook that's powered by Vite - [SwyxKit](https://swyxkit.netlify.app/) is an opinionated blog starter for SvelteKit + Tailwind + Netlify. Refreshed for 2022! - [svelte-themes](https://github.com/beynar/svelte-themes) is an abstraction for themes in your SvelteKit app - [svelte-transition](https://www.npmjs.com/package/svelte-transition) is a Svelte component to make using CSS class based transitions easier - ideally suited for use with TailwindCSS - [Svelte Inview](https://www.npmjs.com/package/svelte-inview) is a Svelte action that monitors an element enters or leaves the viewport/parent element - [svelte-inline-compile](https://github.com/DockYard/svelte-inline-compile) is a babel transform that allows for a much more pleasant experience when testing svelte components using Jest and `@testing-library/svelte` - [@feltcoop/svelte-mutable-store](https://github.com/feltcoop/svelte-mutable-store) is a Svelte store for mutable values with an `immutable` compiler option - [headless-svelte-ui](https://www.npmjs.com/package/@bojalelabs/headless-svelte-ui) is a group of headless components that can be used in building Svelte Apps. Did we miss something? Need help bringing your next idea to life in Svelte? Join us on [Reddit](https://www.reddit.com/r/sveltejs/) or [Discord](https://discord.com/invite/yy75DKs). See ya next month!