expectedwrong hindsight

AutoGen v0.4 Is the Only Agent Framework That Matters Right Now

Microsoft shipped a full rewrite and it quietly became the default answer to a question everyone is still arguing about.

2 min read 234 words #agents #autogen #microsoft #magentic-one #ai-infrastructure
hindsight — half right

AutoGen 0.4 was a genuinely good rewrite. But Anthropic's "stop using frameworks" advice landed a week later and the direct-API approach gained significant ground. The only framework that matters is maybe no framework.

AutoGen v0.4 landed as stable today, and it's a full rewrite — not an update, not a patch series, not a changelog entry that says "improved stability." A rewrite. The old codebase is gone. The new one is what you should be using.

I've looked at the alternatives. I keep looking. There's LangGraph, which will make you think about graphs until you forget what you were building. There's CrewAI, which has the energy of a startup that named itself after a party. There's a dozen others, each with a blog post explaining why agents are the future and a tutorial that breaks on the second example.

AutoGen just works like someone who has read all the same papers you've read and made the obvious choices. The AgentChat layer is clean. The primitives compose. And they shipped an AgentChat version of Magentic-One — their generalist multi-agent system that can browse the web, handle files, and generally behave like a junior employee who does exactly what you say and no more — which means the gap between "framework" and "actually doing things" is now very small.

The team is also almost always on Discord, which is either a great sign or a concerning one depending on how you feel about people who are always online.

There's no reason to use anything else for agents right now. That's not a prediction. That's just where we are today.