Microsoft Agent Framework Harness and Hosted Agents Reach General Availability
AI-summarised brief · reviewed before publication
Microsoft has officially released its Agent Framework Harness and Foundry Hosted Agents to general availability, marking a significant shift from development libraries to a supported production runtime. Initially launched as version 1.0 in April 2026, the framework consolidated Semantic Kernel and AutoGen into a single open-source solution. The recent release, following announcements at Build 2026, provides platform teams with a unified binary for local, container, and hosted deployments. This runtime handles critical execution tasks, including function invocation, context management, and observability via OpenTelemetry. By offering a managed deployment target with consumption-based billing, Microsoft addresses runtime governance and security concerns. The harness enables agents to perform multi-step tasks and tool calls without requiring developers to rebuild infrastructure. This move stabilizes the ecosystem, allowing enterprises to focus on agent logic rather than underlying orchestration mechanics, ensuring consistent behavior and policy enforcement across diverse environments.
💡 Why It Matters
- · This release resolves the critical gap between building AI agents and safely deploying them in enterprise environments.
- · It shifts the burden of runtime governance and observability from individual developers to the platform, enabling scalable, secure agent operations.