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Werk #22246: Passive Checkmk services no longer turn stale outside their check period

Component The Checkmk Micro Core
Title Passive Checkmk services no longer turn stale outside their check period
Date Oct 23, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
3.0.0b1
Not yet released
Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p18
Not yet released
Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p40
Not yet released
Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Services with a rule "Check period for passive Checkmk services" turned stale shortly after their time period ended, although they are not checked outside it.

The Checkmk Micro Core now takes this time period into account when it decides whether a service is stale, as it already did for "Check period for active services".

If you added a rule "Check period for active services" as a workaround, you can remove it.

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