MCP Specification Transitions to 'Stateless' Design

The MCP (Model Context Protocol), a communication specification for AI agents, underwent a significant design overhaul in its July 28, 2026 update. The update removes the initial connection handshake procedure and session headers, transitioning to a stateless architecture. Method name and tool name headers are now mandatory, enabling gateways to route traffic without JSON parsing. Opinions diverge between developers who view this as 'reinventing REST' and those who argue that the value of standardization remains unchanged.