Microsoft Agent Framework 1.0 GA: Semantic Kernel + AutoGen Converge Into Single SDK with A2A Protocol, MCP, and Migration Assistants

Microsoft DevBlogs·medium signal

Microsoft shipped Agent Framework 1.0 GA on April 3, merging Semantic Kernel and AutoGen into a unified SDK for .NET and Python. Key capabilities: multi-agent orchestration, multi-provider model support, native A2A protocol for cross-runtime agent collaboration, MCP support for dynamic tool discovery, and a browser-based DevUI for visualizing agent execution. Migration assistants analyze existing Semantic Kernel or AutoGen code and generate step-by-step migration plans. For builders already in the Microsoft ecosystem, this is the first production-ready, long-term-supported agent framework from a major cloud vendor.