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LangChain releases v1.3.15 with middleware and model integration updates

By PulseAugur Editorial · [1 sources] ·

LangChain has released version 1.3.15, introducing several new features and bug fixes to its development framework. Key updates include enhancements to middleware components like AgentMiddleware, SummarizationMiddleware, and ToolRetryMiddleware, along with improvements to tool call handling and model integration. The release also features expanded support for LangSmith tracing and configuration updates for models like Anthropic. AI

IMPACT Minor update to a popular AI development framework, improving middleware functionality and model integrations.

RANK_REASON This is a software library release, not a frontier model release or significant industry event.

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AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

LangChain releases v1.3.15 with middleware and model integration updates

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  1. LangChain — Releases TIER_1 (TL) · github-actions[bot] ·

    langchain==1.3.15

    <p>Changes since langchain==1.3.14</p> <p>release(langchain): 1.3.15 (<a class="issue-link js-issue-link" href="https://github.com/langchain-ai/langchain/pull/39595">#39595</a>)<br /> feat(langchain): expose <code>trace_policy</code> on <code>AgentMiddleware</code> (<a class="iss…

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