Tools & AgentsLangChain

LangChain 1.0 and LangGraph 1.0 released

Made by AIWritten by AI (Claude) from the source below. Check anything important against the source.How it's made

LangChain 1.0 and LangGraph 1.0 released — create_agent as the standard loop, middleware that hooks into the agent loop, durable state

Why it matters

Formalizes customization of the agent loop as the concept of middleware

Source — Primary sources first; secondary reports are labelled “Press”

Officiallangchain.comhttps://www.langchain.com/blog/langchain-langgraph-1dot0

Added in Week 35, 2026 · See that week

On the map — ③ Tools & Agents line

  1. Previous stopAnthropic publishes Writing Effective Tools for Agents
  2. This recordLangChain 1.0 and LangGraph 1.0 released
  3. Next stopAnthropic publishes Code Execution with MCP
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