The Model Context Protocol (MCP), spearheaded by Anthropic, recently launched its highly anticipated 2026-07-28 specification. The defining transformation of this update is the complete migration of MCP. It has transitioned from a bidirectional, stateful protocol into a streamlined, stateless, request-response architecture. Furthermore, this iteration introduces multi-round requests, HTTP header routing, list caching, a robust extension framework, and critical OAuth security…