warningBreaking change

Vercel AI SDK 6 is a major release with breaking changes

Announced
22 Dec 2025
Effective
no date announced
Version
6.0.0
Source
the vendor’s own page · last checked 7 Sept 2026

What breaks

Nothing until you bump the major. The streaming and tool-calling surfaces change, so the break is at build time.

What to do

Follow the AI SDK 6 migration guide.

What the vendor said

ai 6.0.0 was published on 22 December 2025. The SDK has a high breaking-change rate across majors.

Watching more than one repository?

The team plan is not open yet.

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