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Vercel / Chat SDK API Changes & Updates

We monitor Vercel / Chat SDK for API changes, pricing updates, model releases, deprecation notices, and service incidents.

2 Changes Detected

integration_sdk_change Mar 24, 2026

Chat SDK adds configurable concurrent message handling

The Chat SDK gained a new concurrency control option for message handling (the Chat constructor now accepts a concurrency config with strategies like queue, drop, debounce, and concurrent). This changes the runtime behavior when a new message arrives while a previous message is still being processed.

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integration_sdk_change Mar 6, 2026

Chat SDK adds table rendering and streaming markdown

On Mar 6, 2026 Vercel's Chat SDK added a Table() card component and updated streaming markdown so adapters convert markdown to each platform's native format during streaming. Streaming now shows formatted content earlier (Slack native streaming) and other adapters run markdown->native conversion during incremental edits rather than receiving raw markdown until completion.

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