langchain==1.4.0

发生了什么

Changes since langchain==1.3.18 docs(langchain): runnable langchain.mcp examples ( #39976 ) feat(langchain): langchain.mcp namespace, MCPAdapter ( #39939 ) perf(anthropic,langchain): omit middleware trace inputs ( #40098 ) fix(langchain): include model destination in agent tool routing ( #38355 ) chore(langchain): bump vcrpy test dependency minimum to >=8.2.0 ( #39942 )

摘要按规则整理自下方来源原文

来源