langchain 1.4.0 Release
LangChain 1.4.0 introduces new MCP (Model Context Protocol) namespace support with MCPAdapter, includes improved runnable examples in documentation, and updates dependencies including a requirement for version 8.2.0 or higher.
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)
Source: original entry ↗
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