Since Oracle (or at that time Sun) introduced the the new packaging system in Solaris Express and later Solaris 11, the version string was a little bit strange.
This was changed to a different output in Oracle Solaris 11.4. Now it's versioned in a much clearer manner.
root@togusa:~# pkg list -H entire
entire 0.5.11-0.175.3.28.0.4.0 i--
This was changed to a different output in Oracle Solaris 11.4. Now it's versioned in a much clearer manner.
root@batou:~# pkg list -H entire
entire 11.4-11.4.6.0.1.4.0 i--
Marcel Hofstetter JomaSoft
-bash-4.4$ uname -a
SunOS g0086 5.11 11.4.7.4.0 sun4v sparc sun4v
-bash-4.4$ uname -a
SunOS g0069 5.11 11.3 sun4v sparc sun4v