GCM support for SunOS 5.10

Usage and Config Security
1

Will GCM support Solaris 5.10 ?
I can see the support version in GCM supported page is Solaris 10…
Is SunOS 5.10 and Solaris 10 one and same?

2

SunOS 5.10 and Solaris 10 are synonyms yes

See https://en.wikipedia.org/wiki/Solaris_(operating_system)#Version_history