LangChain and LangGraph Agent Frameworks Reach v1.0 Milestones

LangChain and LangGraph have reached their version 1.0 milestones, marking a commitment to API stability for these open-source AI agent frameworks. LangChain 1.0 introduces a new `create_agent` abstraction built on LangGraph, which simplifies building agents and allows for customization through middleware for tasks like human-in-the-loop validation and PII redaction. It also standardizes content blocks for provider-agnostic model outputs and streamlines the package by moving legacy code. LangGraph 1.0 provides a lower-level, graph-based execution model for building durable, production-grade agents with features like persistent state and built-in human review patterns. LangChain is positioned for rapid development of standard agents, while LangGraph offers fine-grained control for complex, custom agentic systems.