Dev Tools · 1h ago
MCP Release Candidate Overhauls Protocol for Stateless Architecture
The MCP 2026-07-28 release candidate introduces a stateless protocol layer, removing session dependencies and adding server-to-client request flows. Developers must migrate from initialize/initialized to _meta headers and test new MCP Apps for interactive interfaces. The final spec is due July 28, 2026.
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The stateless shift is a major compatibility break that could fragment the MCP ecosystem if SDKs and tools don't adapt quickly.
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The MCP Release Candidate Survival Guide: Apps, Auth, Deprecations, and Tool Schemas →
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