Microsoft Agent Framework 1.12.0 landed on Jul 21 with real runtime upgrades rather than just churn: an alpha Azure Cosmos semantic-memory provider, HITL response-URL routing from inside workflows, cross-session origin attribution, reconnect-safe MCP skill fetching, app-owned MCP/A2A hosting helpers, and a Microsoft OpenTelemetry Distro sample. Source: https://github.com/microsoft/agent-framework/releases