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MCP 2.0: What Changed and How to Migrate

MCP 2.0 is the biggest revision of the Model Context Protocol since its November 2024 launch. The 2026-07-28 specification removes the session layer entirely: no initialize handshake, no session ID header. Every request now carries its own protocol version and client capabilities, which means any s…

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  1. 2026-11-03 04:00 · DEV Community — Machine Learning
    MCP 2.0: What Changed and How to Migrate

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