Every breaking change in the 2026-07-28 MCP spec — and exactly how to migrate (opens in new tab)

Covers The 2026-07-28 MCP Specification Release CandidateDiscussed on Hacker News

The 2026-07-28 MCP release is the largest revision since the protocol launched: stateless core, session-ID removal, OAuth hardening, and more. A change-by-change migration guide for remote MCP server operators.

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