[Release] langchain-ai/langchain langchain==1.3.2: langchain==1.3.2

LangChain v1.3.2 is a maintenance release that includes dependency updates, bug fixes, and feature enhancements. Key improvements include PII redaction in streaming middleware, final answer handling in TodoListMiddleware, stream transformer registration, and updated model references. The release requires langgraph>=1.2.2 and includes security updates for dependencies like idna and langsmith.

Key Points

• •Upgraded langgraph dependency to >=1.2.2 for improved compatibility
• •Implemented PII redaction in flight on PIIMiddleware for enhanced data privacy during streaming
• •Fixed TodoListMiddleware to properly land final answers in last AIMessage
• •Registered stream transformers on middleware for better streaming support
• •Refreshed stale OpenAI model references across core, langchain, and openai packages
• •Fixed glob_search results sorting to prioritize newest files (mtime-based)
• •Updated langsmith from 0.7.31 to 0.8.0 for improved functionality
• •Bumped idna dependency to 3.15 for security and stability improvements
• •Hardened Dependabot version-bound preservation in CI/CD infrastructure
• •Cleaned up redundant if-else logic for code quality improvements

Workflow Diagram

Concepts