THE 2026-07-28 MCP SPECIFICATION RELEASE CANDIDATE

Summary from the TLDR AI newsletter

The release candidate for the next Model Context Protocol (MCP) specification is now available. It is the largest revision of the protocol since launch. The candidate introduces a stateless core that scales on ordinary HTTP infrastructure, extensions, authorization that aligns more closely with OAuth and OpenID Connect deployments, a formal deprecation policy, and many other changes. It contains breaking changes. The final specification will ship on July 28.