Change8

Migrating to SvelteKit @sveltejs/adapter-vercel@7.0.0-next.0

Version @sveltejs/adapter-vercel@7.0.0-next.0 introduces 1 breaking change. This guide details how to update your code.

Released: 6/5/2026

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Breaking Changes
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Migration Steps
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Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

rolldown

Breaking Changes

Issue #1

The edge function build target has been changed to `es2022`. If your edge functions rely on features only available in older JavaScript versions, you may need to update your code or configuration.

Release Summary

This release introduces the use of `rolldown` for edge function bundling and updates the edge function build target to `es2022`. Numerous minor dependency updates were also applied.

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View the full release notes and all changes for SvelteKit @sveltejs/adapter-vercel@7.0.0-next.0.

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