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Werk #19229: Site update no longer aborts on dynamic host management connection names

Component Dynamic host configuration
Title Site update no longer aborts on dynamic host management connection names
Date Oct 8, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.5.0p18 Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Checkmk 2.5.0p6 started to validate the names of dynamic host management connections. That validation also ran during a site update: a connection whose name is not a valid identifier - for example one containing a dot, such as test-vcenter.example.com - made cmk-update-config abort, and the update could not be completed. Such names were accepted in earlier versions, so setups were affected without having been changed. The only remedy offered was to rename the connection by hand.

Starting with this release, the validation is removed again. Connection names are accepted as before, both when creating a connection in Setup and when updating a site. Hosts managed by a connection whose name is not a valid identifier still cannot be edited; that problem is addressed separately.

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