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+---
+title: "What's new in Svelte: September 2025"
+description: 'Deno support, await in consts and open telemetry support'
+author: Dani Sandoval
+authorURL: https://dreamindani.com
+---
+
+In case you missed it, the main Svelte blog covered how to use [SvelteKit's new OpenTelemetry traces](https://svelte.dev/blog/sveltekit-integrated-observability) to reliably set up observability instrumentation using instrumentation.server.ts. This month's round up covers that release and a few other features that rolled out before and after it.
+
+Plenty in the showcase, as well, so let's dive in!
+
+## What's new in Svelte and Svelte CLI (sv)
+
+- `await` is now allowed inside `@const` declarations (**svelte@5.38.0**, [Docs](https://svelte.dev/docs/svelte/await), [#16542](https://github.com/sveltejs/svelte/pull/16542))
+- The `sv add` command has been updated to remove the `--no-preconditions` and add `--no-git-check`. With this new flag, even if some files are dirty, no prompt will be shown (**sv@0.9.0**, [Docs](https://svelte.dev/docs/cli/sv-add), [#650](https://github.com/sveltejs/cli/pull/650))
+
+## What's new in SvelteKit and its adapters
+
+- Deno is now supported as a supported package manager (**sveltejs/adapter-auto@6.1.0**, [#14163](https://github.com/sveltejs/kit/pull/14163))
+- A new `instrumentation.server.ts` adds tracing and observability setup (**sveltejs/adapter-node@5.3.0**, [Docs](https://svelte.dev/docs/kit/observability), [#13899](https://github.com/sveltejs/kit/pull/13899))
+- The `--preserve-output` flag prevents deletion of the output directory before packaging (**sveltejs/package@2.5.0**, [Docs](https://svelte.dev/docs/kit/packaging), [#13055](https://github.com/sveltejs/kit/pull/13055))
+
+For a full list of bug fixes in Svelte, SvelteKit and its adapters, check out their CHANGELOGs [here](https://github.com/sveltejs/svelte/blob/main/packages/svelte/CHANGELOG.md) and [here](https://github.com/sveltejs/kit/tree/main/packages).
+
+---
+
+## Community Showcase
+
+### Apps & Sites built with Svelte
+
+- [Pollinate](https://apps.apple.com/us/app/pollinate-pollen-forecast/id6749463028) provides accurate forecasts designed for allergy sufferers who want to plan their day, or vacation, around pollen levels (Check out the [Reddit post](https://www.reddit.com/r/sveltejs/comments/1mk05ym/mobile_app_made_with_svelte_5_capacitor/) on how it was built)
+- [Ferndesk](https://ferndesk.com/) is a help center that is kept up to date automatically (the creator shared their demo on the [Svelte Reddit](https://www.reddit.com/r/sveltejs/comments/1mqe9ez/i_built_a_tool_that_keeps_your_help_center_up_to/))
+- [Wplace](https://wplace.live/) lets you paint whatever you want on a map of the world
+- [Domain Watcher](https://github.com/Scorpio3310/domain-watcher) is a domain availability monitor and expiration tracker built with SvelteKit & Cloudflare Workers
+- [Motley](https://trymotley.com/) is a local-first bookmarking/moodboard app
+- [TallyHo](https://tallyho.app/) is a simple time tracking for freelancers
+- [MenuScan](https://www.getmenuscan.app/) lets you take a picture of any restuarant menu and get access to the calorie and macro counts for each item
+- [Vibe Check](https://vibechecked.app/) provides quick, honest diagnostics for AI‑built apps
+- [Joyful](https://joyful.to/) is a simple way to write, design, and send beautiful newsletters
+- [Eagle Cite](https://eaglecite.com/) lets you highlight, organize, and search your citations in one place
+- [Volkara](https://volkara.stormlightlabs.org/) is a set of ADHD-Friendly Productivity Tools
+- [Simple Man Archive](https://simplemanarchive.com/) is an ASCII art archive where anyone can contribute by creating unique ASCII art
+- [Thirty](https://github.com/thirtycalendar/thirty) is an open-source AI calendar built on familiar foundations
+- [Timezones](https://time.tem.dev/) quickly shows and converts timezones across many locations
+
+### Learning Resources
+
+_Featuring Svelte Contributors and Ambassadors_
+
+- [Compile Svelte 5 in your head](https://lihautan.com/compile-svelte-5-in-your-head) by Tan Li Hau
+- [Introducing SvelteKit Remote Functions](https://www.youtube.com/watch?v=0hy7PCbXyqs) by Simon Holthausen
+- [The Svelte MCP server](https://www.reddit.com/r/sveltejs/comments/1mju9yj/new_features_in_the_svelte_mcp_server_directly/) now allows you to directly reference documentation sections, and prompt templates
+
+_This Week in Svelte_
+
+- [Ep. 112](https://www.youtube.com/watch?v=GQLgq09-knM) — Storybook for Svelte Part 1
+- [Ep. 113](https://www.youtube.com/watch?v=aerlBIuinFQ) — Storybook for Svelte Part 2 - Docs
+- [Ep. 114](https://www.youtube.com/watch?v=FnUWuLQDCfM) — Changelog Review
+
+_To Read_
+
+- [Securing the supply chain at scale: Starting with 71 important open source projects](https://github.blog/open-source/maintainers/securing-the-supply-chain-at-scale-starting-with-71-important-open-source-projects/) by GitHub
+- [Epicenter (YC S25)](https://www.reddit.com/r/sveltejs/comments/1mjqq3t/update_epicenter_yc_s25_just_sponsored_our_first/) is sponsoring Svelte maintainers to spend their time half pushing local-first OSS forward with Epicenter and half building their dream projects
+- [Project Two: Creating Mobile app using Tauri + Svelte](https://minosiants.com/blog/two-project) by Kaspar Minosiants
+- [Ways to use Anime.js with Svelte](https://brandonma.dev/blog/animejs-svelte/) by Brandon Ma
+- [Svelte, Markdown, and the Magic of Web Components](https://www.sh4jid.me/blog/svelte-markdown-and-the-magic-of-web-components) by Shajid Hasan
+
+_To Watch_
+
+- [SvelteKit Remote Functions are INSANE! Type-Safe Full Stack in Minutes](https://www.youtube.com/watch?v=Xbdiwq_88iE) by Tyler Codes
+- [Deploy a SvelteKit Application to Cloudflare Workers with Drizzle & D1](https://www.youtube.com/watch?v=ZZaExhqW5II) by Jilles Soeters
+
+### Libraries, Tools & Components
+
+- [EXE](https://github.com/Hugo-Dz/exe) is a build tool to distribute your full-stack web app as a single executable binary with zero runtime dependencies
+- [Svelte Sortable List](https://github.com/rodrigodagostino/svelte-sortable-list) is a comprehensive package for creating accessible, sortable lists in Svelte applications
+- [Markdown UI](https://github.com/BlueprintLabIO/markdown-ui) turns static docs into interactive experiences - instantly
+- [Tark UI](https://www.tarkui.com/) provides beautiful UI components built with Ark UI and Tailwind
+- [Uniface Element](https://github.com/ticatec/uniface-element) is a comprehensive enterprise-grade UI component library built with Svelte 5, designed for modern web applications
+- [microfolio](https://github.com/aker-dev/microfolio) is a modern static portfolio generator featuring a file-based content management system using folders and Markdown files
+- [Keycloakify](https://docs.keycloakify.dev/) is a tool for creating custom Keycloak themes, enabling you to modify the appearance and behavior of Keycloak's user interfaces
+- [PDJsonEditor](https://github.com/podosoft-dev/pdjsoneditor) is a powerful JSON visualization and editing tool with both a code editor and interactive graph views
+- [Show & Svelte](https://github.com/retrotheft/show-and-svelte) lets you create fully interactive presentations with Svelte
+- [wuchale](https://github.com/wuchalejs/wuchale) is a compile-time internationalization (i18n) toolkit that requires zero code changes
+- [svelte-overflow-fade](https://github.com/harshmandan/svelte-overflow-fade?tab=readme-ov-file) is a Svelte action and attachment for adding beautiful fade effects to overflowing content
+- [formshape](https://www.npmjs.com/package/formshape) is a type-safe form validation for SvelteKit Remote Functions using Standard Schema compatible validators
+- [vite-plugin-svelte-inline-component](https://github.com/hanielu/vite-plugin-svelte-inline-component) lets you write tiny Svelte components straight inside your JavaScript / TypeScript tests using tagged‑template literals.
+- [vite-plugin-sveltekit-decorators](https://github.com/KiraPC/vite-plugin-sveltekit-decorators) is a Vite plugin that automatically decorates SvelteKit functions with customizable wrappers for logging, analytics, error handling, and more
+- [jetbrains-svelte-templates](https://github.com/ruben-sprengel/jetbrains-svelte-templates) is a compact collection of Live Templates for JetBrains IDEs (like WebStorm and IntelliJ IDEA Ultimate) designed to speed up your Svelte & SvelteKit development
+
+That's it for this month! Let us know if we missed anything on [Reddit](https://www.reddit.com/r/sveltejs/) or [Discord](https://discord.gg/svelte).
+
+Until next time 👋🏼!