Tools & AgentsLangChain
LangChain 1.0 and LangGraph 1.0 released
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-1dot0Added in Week 35, 2026 · See that week