v4.21.2 v4.21.1
maurosoria/dirsearchSep 25, 2026 → Sep 25, 20260 days between releases
Generating AI comparison
Analyzing what changed between v4.21.2 and v4.21.1. This page updates automatically — usually within a minute.
The Two Releases
v4.21.2
v4.21.2
Sep 25, 2026· 26 days ago
A bug fix release for FastMCP addressing errors when prompts or resources are unknown and improving authentication visibility.
Full release notesv4.21.1
v4.21.1
Sep 25, 2026· 26 days ago
FastMCP v4.21.1 resolves CLI hanging issues during validation and improves type checking accuracy.
Full release notes