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Next MCP Specification Goes Stateless — Release Candidate Published Ahead of July 28 Final
The Model Context Protocol team published the release candidate for the next spec, headlined by making MCP stateless at the protocol layer via six coordinated SEPs, plus an Extensions framework, Tasks, MCP Apps, authorization hardening, and a formal deprecation policy. Practically, remote MCP servers that needed sticky sessions and shared session stores can now run behind a plain round-robin load balancer and let clients cache tools/list responses per a server ttlMs. It contains breaking changes with a ten-week validation window; final ships July 28, 2026 — a significant re-architecture for anyone operating MCP infrastructure.
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