MCP is going stateless — simpler sessions for the protocol behind agent tooling

Reporting on July 20, 2026 describes the Model Context Protocol moving from stateful session IDs to standard web-style stateless session handling, with a significant spec update expected in late July 2026. Today, teams running MCP servers behind load balancers must make every machine aware of session IDs another machine issued; the change removes that requirement. The account comes from agent-infrastructure vendor Arcade, ahead of the spec landing.

What it means Anyone deploying MCP servers behind load balancers gets materially simpler operations — worth factoring into deployment architecture before the spec update lands.