Oracle Solaris is delivered as a set of packages, with subsets of packages constrained by incorporate dependencies. See Constraint Packages in Updating Systems and Adding Software in Oracle Solaris 11.4 for more information about constraint packages.
Use the following command to list available constraint packages:
$ pkg list -as entire \*incorporation
Constraint packages contain incorporate dependencies. See incorporate Dependency for more information.
The pkg:/entire package is a special constraint package that constrains other constraint packages to the same build by including both require and incorporate dependencies on each constraint package. In this way, the pkg:/entire package defines a software surface such that core Oracle Solaris system packages are upgraded as a single group.