Build 2026: Windows Agent Framework MIT Open Source, Agent Store 85% Revenue Share
Microsoft open-sourced Windows Agent Framework v1.0 under MIT license at Build 2026, supporting YAML manifest for deployment across local Windows, Windows 365, and Azure Arc. Windows Agent Runtime serves as background service managing agent lifecycle, memory, and permissions with fine-grained rule engine. Windows Agent Store offers 85% developer revenue share. Copilot Workspace exits beta. No Windows 12 this year—OS core transformation is agents, not version numbers.
