Unverified50% confidenceFactExact time
LangChain 0.3全面拥抱Pydantic v2，同时引入pydantic.v1兼容层以兼容基于v1开发的社区插件
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/12/2026
First Seen
Valid until: 10/10/2026
Sources
LangGraph入门：用图结构构建AI Agent工作流
bilibili吴恩达LLM7/10/2026
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