[Release] langchain-ai/langchain langchain-classic==1.0.5: langchain-classic==1.0.5

langchain-classic version 1.0.5 has been released with several maintenance updates and dependency bumps. Key changes include retargeting deprecations to `create_agent`, uncommenting optional dependencies, and updating various type stubs and libraries. The release also includes hotfixes for minimum core versions and improvements to streaming functionality in the core package.

Key Points

• •Retargeted deprecations to `create_agent` function for cleaner API migration path
• •Uncommented optional dependencies in langchain and langchain-classic packages
• •Bumped types-pyyaml from 6.0.12.20250915 to 6.0.12.20260408
• •Bumped types-pytz from 2026.1.1.20260304 to 2026.1.1.20260408
• •Updated notebook dependency from 7.4.5 to 7.5.6
• •Bumped langsmith from 0.7.13 to 0.7.31 for improved integration
• •Implemented content-block-centric streaming (v2) in core package
• •Fixed Fireworks integration to properly honor `max_retries` parameter
• •Updated minimum core versions with hotfix to ensure compatibility
• •Updated X handle references in documentation

Workflow Diagram

Concepts