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Werk #18997: Fix "Host name or alias (regex)" filter

Component User interface
Title Fix "Host name or alias (regex)" filter
Date Apr 14, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.6.0b1
Not yet released 		Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0b5
Not yet released 		Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p27
Not yet released 		Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.3.0p47
Not yet released 		Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

The Host name or alias (regex) filter was using the incorrect Livestatus column name alias instead of host_alias when matching against the host alias. This caused errors on dashboards that used this filter. The column name has been corrected so the filter now works as expected.

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