Microsoft Announces Open Agentic AI Stack at Open Source Summit — Azure Linux 4.0, Agent Governance Toolkit, and AAIF Push

AIwire·high signal

At Open Source Summit North America on May 18, Microsoft unveiled Azure Linux 4.0 public preview, GA of Azure Container Linux (immutable container-optimized OS), and a comprehensive open agentic AI stack. The stack includes agent-to-agent (A2A) protocols for cross-vendor agent communication, an Agent Governance Toolkit with identity, policy, audit, and access boundaries, and deep integration with Ray and NVIDIA Dynamo. Microsoft highlighted the Agentic AI Foundation (AAIF) as the fastest-growing project in Linux Foundation history.