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LangChain · Launch ·

langchain-openai==1.6.5

Changes since langchain-openai==1.6.4 release(openai): 1.6.5 ( #40787 ) fix(anthropic): add Opus 5.5 and GPT-6 profile augmentations ( #40785 )…

What moved

Changes since langchain-openai==1.6.4 release(openai): 1.6.5 ( #40787 ) fix(anthropic): add Opus 5.5 and GPT-6 profile augmentations ( #40785 ) feat(anthropic,openai): mid-conversation tool changes on SystemMessage ( #40758 )

Why it matters

Filed as a launch filing from LangChain, 2026-09-23. Tagged LLM.

On the record

  • Filed from the LangChain official RSS on 2026-09-23.
  • Primary source host: github.com.
  • The desk does not add a second source.
Primary source
github.com
Desk
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