TL;DR: LangChain Core 1.6.1 was released, improving streaming content indexing and making StructuredTool JSON-serializable.
Summary: LangChain Core version 1.6.1 has been released, introducing several key fixes and features. Notable updates include shoring up indexing in genai v1 streaming content and making the StructuredTool class JSON-serializable. This release also propagates gateway information on error paths.
Why it matters: Improved streaming content handling and JSON-serializable tools simplify building robust and interoperable AI applications with LangChain. Developers should update to leverage these stability and serialization enhancements for smoother integration and debugging.
Source: github_releases