Microsoft’s new open-source Microsoft Agent Framework, announced on October 1, 2025, aims to become the unified foundation for building, orchestrating, and deploying agentic AI applications across enterprise environments, bringing together ideas from Semantic Kernel and AutoGen while adding runtime features for observability, durability, and governance.
Background
The rise of agentic AI — systems that reason, execute tasks, call external tools, and coordinate with other agents — has...