Microsoft Agent Framework 1.0: Build AI Agents in .NET and Python

Microsoft dropped Agent Framework 1.0 on April 3, 2026 — and it changes the calculus for enterprise teams building AI agents. This isn't another experimental SDK. It's the production-ready convergence of two projects that collectively racked up over 75,000 GitHub stars: Semantic Kernel and AutoGen. Both are now in unified maintenance, with all new development happening in a single open-source repo at github.com/microsoft/agent-framework. If you've been waiting for a stable, LTS-committed founda...