# What's new in Svelte: August 2023

DevFeed: [What's new in Svelte: August 2023](<https://devfeed.tech/articles/what-s-new-in-svelte-august-2023-3064.md>)

Original publisher: [Read original article](<https://svelte.dev/blog/whats-new-in-svelte-august-2023>)

Author: Dani Sandoval

Published: 2023-08-01T00:00:00Z

Content type: release

Language: en

Sources: [Svelte blog](<https://devfeed.tech/sources/svelte-blog.md>)

Topics: [Svelte](<https://devfeed.tech/topics/svelte.md>), [changelog](<https://devfeed.tech/topics/changelog.md>), [API](<https://devfeed.tech/topics/api.md>), [Prettier](<https://devfeed.tech/topics/prettier.md>), [Chrome extension](<https://devfeed.tech/topics/chrome-extension.md>), [GitHub](<https://devfeed.tech/topics/github.md>), [GitLab](<https://devfeed.tech/topics/gitlab.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [api](<https://devfeed.tech/tags/api.md>), [changelog](<https://devfeed.tech/tags/changelog.md>), [chrome-extension](<https://devfeed.tech/tags/chrome-extension.md>), [features](<https://devfeed.tech/tags/features.md>), [github](<https://devfeed.tech/tags/github.md>), [gitlab](<https://devfeed.tech/tags/gitlab.md>), [json](<https://devfeed.tech/tags/json.md>), [openai](<https://devfeed.tech/tags/openai.md>), [svelte](<https://devfeed.tech/tags/svelte.md>), [whisper](<https://devfeed.tech/tags/whisper.md>)

## AI overview

This August 2023 update covers new features, bug fixes, and performance updates in Svelte, SvelteKit, and Svelte language tools. It highlights custom element customization, the HEAD server method in API routes, caching of responses with Vary headers, improved preview errors, Prettier v3 support, and workspace trust settings. It also showcases products and side projects built with Svelte.

## Source excerpt

Some sweet new features have dropped in both Svelte and SvelteKit, this month. It's also great to see how many products and side projects have launched using Svelte as their core technology! More on all that down below... What's new in Svelte & Language Tools There's been a bunch of minor bugfixes since the Svelte 4 release. You can find them in the CHANGELOG. The 4.1.0 release added the ability to further customize the custom element class that wraps the underlying Svelte component. Check out the Custom Elements API docs or the PR for more info! In addition to supporting SvelteKit's new HEAD server method, Svelte's language tools now support Prettier v3 (extensions-107.9.0) and workspace trust settings are now used to support all settings in workspace (extensions-107.8.0). What's new in SvelteKit The HEAD server method is now available in API routes (1.22.0, Docs, #9753) Responses with Vary headers are now cached, too (except for Vary: *) (1.22.0, Docs, #9993) There's now a more helpful error for preview if SvelteKit's build output doesn't exist (1.22.2, #10337) For all the patches and performance updates from this month, check out the SvelteKit CHANGELOG. You can also find adapter-specific CHANGELOGs in each of the adapter directories. Community ShowcaseApps & Sites built with Svelte GitLight brings GitHub & GitLab notifications to your desktop Days is paprikka's life in days, inspired by Buster Benson's Life in Weeks Mofi is a content-aware fill and trim for music JSON Bucket stores your JSON data so you can access it anywhere through generated API routes Soggy Planet is an interactive map of Earth where sea levels rise and fall and the lights of civilization shine through the night (Source) PaperClip is a Chrome extension that makes it easy to memorize details from papers in machine learning, computer vision, and natural language processing. Maktaba is a bookmark manager that "you will actually use" Whispering is a Chrome extension that lets you access OpenAI's