Source record

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

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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.

Beta SDK releases for Python, TypeScript, Go, and C# are available with support for the 2026-07-28 MCP specification release candidate. The post outlines changes for servers, migration steps, and testing guidance ahead of the final spec on July 28.

Official MCP blog post useful as a migration checklist for SDK maintainers and agent builders. Less urgent for readers not touching MCP server code directly.

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