AI Agent Memory and State Management — LangChain / LangGraph (Beginner)

Best Practice 2026-07-07 00:00:00

AI Agent Memory and State Management — LangChain / LangGraph — Beginner Guide (as of 07 Jul 2026)

How to manage memory and persistent state in LangChain agents and LangGraph graphs — written for people new to AI. Covers which memory tool to start with, how to keep conversation history across sessions, which old APIs to stop using, and a critical security update — accurate as of July 2026.