Agent InfrastructureAutomated release watch

langchain-core==1.6.6

LangChain released langchain-core 1.6.6 with Anthropic Claude Sonnet 5.5 compatibility and docstring example fixes.

Human read

Why this signal matters

langchain-core release 1.6.6 contains updates since version 1.6.5. Key changes include: a fix supporting Anthropic Claude Sonnet 5.5 compatibility (PR 40882) and documentation improvements correcting docstring examples that failed to run when copied directly (PR 40815).

Agent parse

Actionable summary

langchain-core==1.6.6 adds Anthropic support for Claude Sonnet 5.5 compatibility and resolves unrunnable docstring examples.

Agent usefulness
72/100
Confidence
96%
Canonical data
JSON + Markdown
Next actions

What builders should check

  • Upgrade langchain-core to 1.6.6 if requiring Claude Sonnet 5.5 compatibility.
Classification

Tags and routing

langchaintoolsorchestration
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