v4.20.2 v4.20.0

Name: fastmcp
Author: punkpeye

punkpeye/fastmcpSep 4, 2026 → Sep 4, 20260 days between releases

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Analyzing what changed between v4.20.2 and v4.20.0. This page updates automatically — usually within a minute.

The Two Releases

v4.20.2

Sep 4, 2026· 2 months ago

Updates the mcp-proxy dependency and removes a workaround related to WWW-Authenticate headers.

Full release notes

v4.20.0

Sep 4, 2026· 2 months ago

A feature release introducing OpenAPI support, including wiring up output schemas, structured content, and serialization styles for queries and bodies.

Full release notes