Starting Client Automation 14.0 SP2, new release of Linux Red Hat after 7.3 will not have a specific classID.
A generic classID is used instead.
Linux Red Hat 7.x with x>=4 (7.4, 7.5, etc...) will have :
ClassID = 5528 for Red Hat Enterprise Linux Server 7 x86_64
ClassID = 5529 for Red Hat Enterprise Linux Desktop 7 x86_64
ClassID = 5530 for Red Hat Enterprise Linux Workstation 7 x86_64
So machines Linux Red Hat Enterprise 7.4 and 7.5 will have the same classID = 5528 and not a specific classID.
In order to get the full version, field Version could be used.
Exemple :
For a machine Red Hat Enterprise Linux 7.4 with ITCM SP2 Agent we get :
Platform = Red Hat Enterprise Linux Server 7 x86_64
Version = Red Hat Enterprise Linux Server release 7.4 (Maipo) (x86_64)