Explore the latest product updates and best practices at our hybrid Checkmk Conference #12 from June 16-18, 2026 – Register here

Werk #17555: apc_humidity: Change defaults

Component Checks & agents
Title apc_humidity: Change defaults
Date Jan 17, 2025
Level Trivial Change
Class Bug Fix
Compatibility Incompatible - Manual interaction might be required
Checkmk versions & editions
2.5.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.4.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.3.0p25 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.2.0p39 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

This change affects users, which use the apc_humidity check and rely on the default configuration. In the default configuration, the service is always critical.

This was because the lower levels (60.0, 65.0) were above the upper levels (40.0, 35.0). In fact, the intended behaviour, which is also described by the manpage, was that the two levels were switched. With this Werk, the behaviour of the check matches the manpage description.

The old behaviour can be restored by configuring the rule Humidity Levels.

To the list of all Werks