class apt::reboot_required_notify { if versioncmp($::operatingsystemmajrelease, '8') >= 0 { class { 'apt::reboot_required_notify::jessie': } # Clean up systems that were upgraded from Wheezy or earlier: class { 'apt::reboot_required_notify::wheezy': ensure => absent } } else { class { 'apt::reboot_required_notify::wheezy': } } }