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

The Svelte Blog provides updates, tutorials, and insights on Svelte, a modern JavaScript framework for building reactive web applications. Covering topics such as component-based architecture, reactive programming, and state management, the blog offers practical guidance for developers looking to harness the power of Svelte to create fast and efficient user interfaces. Developers can learn how to leverage Svelte's innovative approach to frontend development to build dynamic and interactive web applications with ease.

Svelte Blog

April 2026 brings several improvements to Svelte and SvelteKit. Highlights include Svelte MCP integration with OpenCode via the sv CLI, support for functions in svelte.config.js for css/runes/customElement options, new exported types from svelte/motion (TweenOptions, SpringOptions, etc.), server-side error boundary support in SvelteKit, and improved type narrowing for page/layout params with matchers. The community showcase features a range of apps, learning resources, and new libraries built with Svelte.

What’s new in Svelte: April 2026