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Werk #20135: Display custom metric names without altered capitalization

Component User interface
Title Display custom metric names without altered capitalization
Date Jul 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
2.5.0p9 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p34 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Previously, metrics without an explicit metric definition -- most commonly the ones produced by local checks -- were shown with an auto-generated title. This title was derived by title-casing the raw metric name: the first letter of every word was capitalized and all remaining letters were lowercased. So a metric named nm-openvpn showed up as Nm-Openvpn, and someMetric became Somemetric.

This affected the service summary, the service details, the service metrics column, and graph titles and legends, while the raw name was kept only in the perfdata. As a result, the displayed name no longer matched the metric name actually delivered by the check.

This has been fixed. Metrics without an explicit definition are now displayed with their raw name exactly as delivered, without any capitalization changes.

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