The langchain-anthropic library has been updated to version 1.7.1, a minor release that builds on 1.7.0 with targeted improvements for developers working with Anthropic models through LangChain.
This update introduces performance optimizations by omitting middleware trace inputs when they are not needed, reducing overhead in tracing pipelines. Users maintaining self-hosted LangChain deployments should notice lighter trace payloads and potentially faster request handling.
In addition, the package now supports Claude Fable 5.1, making the latest model available to applications using the Anthropic integration. This extends the range of models you can call directly through LangChain.
