LangChain v1: What JS and Python developers need to know

Join Marlene Mhangami and Yohan Larosa in this livestream to celebrate the launch of LangChain v1! JS links: https://aka.ms/lcjs/agent-mcp : LangChain.js Agent + MCP sample https://aka.ms/lcjs/agent-mcp/blog - walkthrough post for the sample above https://github.com/sinedied/langchainjs-playground/ - JS snippets Python links: https://aka.ms/ambient-deep-agents - LangChain Deep Agents Sample https://aka.ms/langchain-chat - LangChain Chat sample https://github.com/marlenezw/langchain-playground - Python snippets Chapters: 00:06 – Welcome & Housekeeping 00:56 – Meet the Speakers: Johan & Marlene 02:04 – How We Got Started with LangChain 04:44 – LangChain vs LangGraph Explained 06:00 – What is LangChain? Core Concepts 07:42 – LangChain V1: Major Changes & Agent Focus 16:00 – Demo: Building Agents with LangChain V1 in JavaScript 20:00 – Demo: Building Agents with LangChain V1 in Python 28:00 – Middleware in LangChain V1: Human-in-the-Loop & More 36:56 – Streaming with LangChain V1 39:03 – Using LangChain MCP Server with VS Code 42:20 – Full Demo: LangChain Agent for Burger Ordering 50:01 – Deep Agents & Final Resources 53:42 – Wrap-Up & Feedback Invitation #microsoftreactor #learnconnectbuild [eventID:26481]