What You Can Do For Your Framework
summary
Svelte 5 is now a release candidate and compiles components to far less and simpler JS by emitting components as plain function calls, making output easier to optimize and tool. The new reactivity system uses runes — state, derived and short-lived effect runes — plus reactive Map/Set/Date/URL, native TypeScript support, CSS nesting and Snippets/render tags replacing slots. Migration tooling lives in the playground; app authors should update package.json to v5 and library authors should bump peerDependencies and publish a v5 major to work with the new APIs.
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chapters (6)
- 0:00Introduction to Svelte 5
- 2:40Understanding Svelte runes
- 4:04New features and improvements
- 6:10Release candidate announcement
- 8:00Migration and library support
- 10:43Call to action
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