atf-version —
shows information about the installed ATF version
atf-version is a utility that prints information about
  the version of ATF currently installed in the system.
In the first synopsis form, atf-version
    shows the release version of the ATF package installed in the system (the
    installation that corresponds to the instance of
    atf-version being executed) and also shows
    information related to the repository revision used to build that
  package.
In the second synopsis form, atf-version
    will print information about all supported options and their purpose.