This is the contents of my release file:
# cat /etc/release
Solaris 10 3/05 s10_74L2a SPARC
Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 22 January 2005
Where is the build info? I need to know if this version is build 60 or later.
Solaris 10 3/05 s10_74L2a SPARC
... that would be build #74
which if I remember correctly, is equal to the March 2005 GA release of the OS.
I'm going by vague memory, here.
I have a Solaris x86 system with the Sol10 3/05 GA release on it
and that's the same info as in my Release file.
Others may jump in here to contribute more information.