In this example, there are four versions of a package: 1.0, 1.1, 2.0, and the new package, 3.0, which is compatible with all the three previous versions. The compver file for the newest version might look like:
release 3.0 release 2.0 version 1.1 1.0
The entries do not have to be in sequential order. However, they should exactly match the definition of the
VERSION parameter in each package's pkginfo file. In this example, the package designers used different formats in the first three versions.