AIHacker Noonabout 6 hours ago
MCP Rewrite Removes Protocol Sessions
20 min read
MCP's 2026-07-28 revision removes protocol sessions, replacing the 2025-11-25 spec in the biggest change since launch. Clients now stamp each request with metadata, enabling stateless load balancing. The update also removes resumability and introduces Multi Round-Trip Requests for server-to-client calls.
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