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Open-source releaseMLOps, Tooling & Infrastructure1 source · Sep 7, 2026

modelcontextprotocol/python-sdk v1.30.0

Maintenance release of the 1.x line.

Key points

  • If you run a server or client on 1.x, skim these first:
  • HTTP client redirects are only followed within the endpoint's origin (#3448)
  • The followredirects setting on an httpx.AsyncClient you pass in is no longer used for MCP requests, so you don't need it for the trailing-slash redirect any more.
  • OAuthClientProvider applies the same rule to its own requests.

Sources (1)

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