Source record

Published by Model Context Protocol Blog (T1 source). The original is at https://blog.modelcontextprotocol.io/posts/2026-07-28-release-candidate/.

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The summary and note below are generated by the signal pipeline — they are Beyond Desk’s reading, not quotations from the source.

The official MCP blog announces the 2026-07-28 specification release candidate, featuring a stateless protocol core, Extensions framework, Tasks, MCP Apps, authorization hardening, and a formal deprecation policy.

Primary-source spec update from the MCP maintainers; relevant to anyone building or integrating MCP servers and clients, with concrete new primitives to plan around.

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