Open Stack

Hi, folks!

The last time we incremented versions for libvirt and QEMU was for
"Wallaby" release[1].  It'Although we
advertized NEXT_MIN_{LIBVIRT,QEMU} versions to be
libvirt 7, 0, 0 and QEMU 5.2.0, we actually didn't bump.  So, for
"Bobcat", we'll bump the MIN libvirt and QEMU versions to:

    MIN_LIBVIRT_VERSION = (7, 0, 0)
    MIN_QEMU_VERSION = (5, 2, 0)

For the upcoming "C" release (2024), we annouce the
NEXT_MIN_{LIBVIRT,QEMU} to be the following:

    NEXT_MIN_LIBVIRT_VERSION = (8, 0, 0)
    NEXT_MIN_QEMU_VERSION = (6, 2, 0)


Hope that sounds fine.  If anyone has concerns or further comments,
please raise them on this thread or add 'em in the patch below:

    https://review.opendev.org/c/openstack/nova/+/886825 Pick next min
     libvirt / QEMU versions for "C" (2024) release

Rationale
---------

We picked the above NEXT_MIN version based on Ubuntu "Jammy" (22.04).
It is the lowest common denominotor among Debian 11 ("Bullseye"), Ubuntu
22.04 ("Jammy"), and CentOS 9 Stream.

  - Ubuntu 22.04 (Jammy):
    - libvirt-daemon: 8.0.0-1ubuntu7.5 
    - qemu-system-x86: 6.2+dfsg-2ubuntu6.11
  
  - Debian 11 (Bullseye):
    - libvirt: 7.0.0-3+deb11u2
    - qemu: 5.2+dfsg-11+deb11u2
  
  - CentOS Stream 9:
    - libvirt-daemon-kvm-9.3.0-2.el9.x86_64.rpm
    - qemu-kvm-8.0.0-4.el9.x86_64.rpm

[1] https://opendev.org/openstack/nova/commit/95724bbaef6 -- libvirt:
    Bump MIN_{LIBVIRT,QEMU}_VERSION and NEXT_MIN_{LIBVIRT,QEMU}_VERSION,
    2020-09-28)

--
/kashyap