Migrating to Svelte 5: Navigating Changes

Summary
In this episode we sit down with Dominik G — a Svelte maintainer — and talk about Svelte 5 and the new Environment API in Vite 6.

Sponsored by Svelte Summit
Svelte Summit is an event dedicated to Svelte and everything that is happening in the community. Don't miss it! It's going to be an absolute blast. It's happening on May 8 and 9, 2025 in Barcelona Spain.

Discussion

• Who is Dominik?
  • vite-ecosystem-ci
• Dominiks talk at JSNation
• Vite
  • Environment
    • Björn Lu
    • Cloudflare Workers
      • Miniflare
    • Samuel Inlang environments for i18n
    • Jeppe Reinhold (Storybook)
• Svelte 5
  • SvelteKit and how the Environment
  • Error Boundaries (PR here)
  • Migrating
    • $: to run function
    • Don’t reach for effect, use derived!
    • You can use effect to get the same functionality as onMount/Destroy
• Hackathon
  • Return to Castle Wolfenstein
  • Wolfensvelte
  • Threltemania