[Release] langchain-ai/langchain langchain-openai==1.4.0: langchain-openai==1.4.0

langchain-openai version 1.4.0 has been released with several updates including a Pillow dependency bump, addition of `reasoning_effort` as a standard chat model parameter for enhanced model control, and refreshed model profile data. This release builds on version 1.3.5 with improvements to core functionality and dependency management.

Key Points

• •Released langchain-openai==1.4.0 with multiple improvements over 1.3.5
• •Added `reasoning_effort` as a standard chat model parameter for fine-grained control over model reasoning behavior
• •Updated Pillow dependency from 12.2.0 to 12.3.0 for security and performance improvements
• •Refreshed model profile data to ensure accurate model capabilities and configurations
• •Core feature enhancement enables developers to optimize model inference strategies
• •Dependency updates maintain compatibility and security across the OpenAI integration package

Workflow Diagram

Concepts