Model Context Protocol8 min read
Beta SDKs for the 2026-07-28 MCP Spec Release Candidate Are Here
Beta releases of the Python, TypeScript, Go, and C# SDKs are now available with support for the 2026-07-28 MCP specification release candidate. Here is what changes for your server, how to migrate, and how to test before the spec goes final on July 28.
By Felix Weinberger (TypeScript SDK Lead), Max Isbey (Python SDK Lead), Den Delimarsky (Lead Maintainer)Model Context Protocol (MCP) Blog
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Originally published by Model Context Protocol (MCP) Blog on Jun 29, 2026.
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