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Werk #22279: Wrong Checkmk version comparison for MKP version requirements

Component Checks & agents
Title Wrong Checkmk version comparison for MKP version requirements
Date Oct 8, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
3.0.0b1
Not yet released 		Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p16
Not yet released 		Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Checkmk compared versions incorrectly when checking the "Minimum required Checkmk version" and "Valid until Checkmk version" of an extension package (MKP). Beta versions with a large build number were considered newer than patch releases of the same version. For example, 2.5.0b999 was considered newer than 2.5.0p14.

This affected:

  • installing, enabling and updating packages with the mkp command, including mkp update-active, which is run during omd update
  • enabling packages in Setup > Extension packages
  • updating the active packages when activating changes
  • the check of the minimum and maximum version in the package editor

The versions are now compared correctly.

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