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Verified75% confidenceFactExact time

LangChain新版本（0.2及以上）将框架拆分为langchain-core、langchain-community等子包，并引入了LCEL（LangChain Expression Language）作为统一的链式调用语法

5

Sources

75%

Confidence

Medium-term (~90 days)

Relevance

7/3/2026

First Seen

Valid until: 10/1/2026

Sources

LangChain入门：Model与Agent核心概念详解

bilibiliAgentic_RAG7/2/2026

Related Claims

VerifiedLangChain项目逐步拆分为多个子库，包括langchain-core、langchain-community、LangSmith和LangServe80% similar UnverifiedLangChain核心模块包括LangChain Core、LangChain Community和LangGraph，并采用LCEL声明式语法78% similar UnverifiedLangChain在0.1到0.3版本间经历了大规模重构，引入了LCEL（LangChain Expression Language）新范式，旧版代码往往无法直接运行74% similar Unverified截至1.3版本，LangChain生态形成langchain-core、langchain-community和LangGraph三层架构，配合LangSmith可观测性平台72% similar

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