releases.shpreview
VercelVercel/AI SDK

Python AIMessageChunk streaming now supported

@ai-sdk/langchain@3.0.0-canary.153

May 26, 2026AI SDKView original ↗
1 fixThis release1 fixBug fixesAI-tallied from the release notes
From the original release noteView original ↗

Patch Changes

  • 62ae6c7: fix(langchain): recognize Python AIMessageChunk plain message objects from RemoteGraph streams

    Python langchain-core serializes streaming message chunks with type: "AIMessageChunk", while TypeScript langchain-core uses type: "ai". The toUIMessageStream adapter previously only matched the TypeScript form, silently dropping text deltas and tool-call events when streaming from Python LangGraph servers via RemoteGraph.

  • Updated dependencies [6c93e36]

    • ai@7.0.0-canary.153

Fetched May 27, 2026

Python AIMessageChunk streaming now supported… — releases.sh