MCP Goes Stateless: The Biggest Agent Protocol Rewrite Yet and What It Breaks - July 29, 2026

MCP Goes Stateless: The Biggest Agent Protocol Rewrite Yet and What It Breaks The Model Context Protocol just shipped the largest specification change in its history, and it now lives under the neutral stewardship of the Agentic AI Foundation rather than any single vendor. Chris and Laura dig into why the session model was torn out, how application state moved into explicit handles the model can actually see, and why Roots, Sampling, and Logging were put on a twelve month deprecation clock. ...