---
upgrade:
  - |
    The following variables have been renamed in order to make the variable
    names neutral for multiple operating systems.

      * nova_apt_packages -> nova_distro_packages
      * nova_spice_apt_packages -> nova_spice_distro_packages
      * nova_novnc_apt_packages -> nova_novnc_distro_packages
      * nova_compute_kvm_apt_packages -> nova_compute_kvm_distro_packages