Solaris 10 packages not versionable?

Created a module to ensure that openssh is up to date on all of our hosts. When executing `puppet agent -t` on the test host, it returns with:

err: Failed to apply catalog: Parameter ensure failed: Provider must have features 'versionable' to set 'ensure' to '6.1p1'

Are Solaris packages not versionable? Seems like a big oversight if so.