[Release] langchain-ai/langchain langchain-openai==1.1.13: langchain-openai==1.1.13

langchain-openai version 1.1.13 is released with critical bug fixes and improvements. Key changes include handling content blocks without type keys in responses API conversion, fixing token extraction in usage metadata, and allowing user-provided User-Agent headers to override Azure defaults. The release also includes security updates (Pygments CVE), model profile refreshes, and VCR cassette playback fixes for CI testing.

Key Points

• •Fixed content block handling in responses API conversion when type key is missing
• •Corrected token extraction in usage metadata with proper None checks for OpenAI, Groq, and OpenRouter
• •Allow user-provided User-Agent headers to override Azure default settings
• •Security patch: upgraded Pygments to >=2.20.0 across all packages to address CVE-2026-4539
• •Implemented placeholder filename imputation for OpenAI file inputs
• •Fixed VCR cassette playback issues and added CI guards for test reliability
• •Updated model profile data with latest configurations
• •Bumped requests library dependency from 2.32.5 to 2.33.0
• •Fixed computer call test implementation
• •Corrected documentation typos in core module

Workflow Diagram

Concepts