v1.16.22 v4.22.1

Name: fastmcp
Author: punkpeye

punkpeye/fastmcpSep 28, 2026 → Sep 30, 20262 days between releases

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Analyzing what changed between v1.16.22 and v4.22.1. This page updates automatically — usually within a minute.

The Two Releases

v1.16.22

Sep 28, 2026· 24 days ago

This release introduces significant changes to web server security by restricting responses to specific host names and updating cookie handling. It also modifies worktree hook approval logic, which may require re-approval of existing hooks.

Full release notes

v4.22.1

Sep 30, 2026· 22 days ago

Bug fixes for tool/resource error handling, edge protocol initialization, and OpenAPI query parameter handling.

Full release notes