双周简报介绍 LangChain 生态社区动态，包括重要发布、功能更新、样例应用等内容。
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以双周简报的形式介绍 LangChain 生态社区（含 LangChain, LangSmith, LangGraph 等）相关咨询，包含重要发布、功能更新、样例应用、文档更新、演讲分享、客户案例等内容。
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