[Release] langchain-ai/langchain langchain-anthropic==1.3.5: langchain-anthropic==1.3.5

langchain-anthropic version 1.3.5 release includes bug fixes for cache handling, eager input streaming support, and tool choice behavior when thinking is enabled. Key improvements focus on Anthropic integration stability, performance optimizations for dependency checks, and updated model profiles. The release also updates dependencies including langgraph and langgraph-checkpoint to newer versions.

Key Points

• •Fixed cache_creation field handling to prioritize specific fields over general usage fields in Anthropic integration
• •Added support for eager_input_streaming in Anthropic models
• •Dropped forced tool_choice when thinking mode is enabled to improve model behavior
• •Refactored _make_message_chunk_from_anthropic_event to instance method for better encapsulation
• •Updated langgraph dependency from 1.0.8 to 1.0.10rc1 for improved graph execution
• •Upgraded langgraph-checkpoint from 3.0.1 to 4.0.0 for checkpoint management enhancements
• •Added performance optimization with timeout on get min versions HTTP calls
• •Introduced new fields and Makefile target for model-profiles feature
• •Fixed and updated integration tests to ensure compatibility with new changes

Workflow Diagram

Concepts