Recently Foreman added support for various operating systems with unusual version numbering schemes. What makes them unusual is the use of non-digit characters. Foreman should natively support such version numbers.

FreeBSD

kernel => FreeBSD
kernelmajversion => 9.2
kernelrelease => 9.2-RELEASE-p3
kernelversion => 9.2
operatingsystem => FreeBSD
operatingsystemrelease => 9.2-RELEASE-p3
osfamily => FreeBSD

Junos

kernel => JUNOS
kernelmajversion => 12.3R2
kernelrelease => 12.3R2.5
kernelversion => 12.3R2.5
operatingsystem => JUNOS
operatingsystemrelease => 12.3R2.5
osfamily => JUNOS