[Bug 1859649] Re: networking disruption on upgrade from 14.0.0 to 14.0.3

[Dr. Jens Harbott]

I agree that this is kind of expected behaviour, but I also think that
it would be good if Neutron could adopt the policy to at least bump the
minor revision number on version number updates, that would make it more
obvious to deployers that special care is needed. It should also be
accompanied by a release note.

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https://bugs.launchpad.net/bugs/1859649

Title:
  networking disruption on upgrade from 14.0.0 to 14.0.3

Status in Ubuntu Cloud Archive:
  Confirmed
Status in neutron:
  Incomplete
Status in neutron package in Ubuntu:
  Confirmed
Status in neutron source package in Disco:
  New
Status in neutron source package in Eoan:
  New
Status in neutron source package in Focal:
  Confirmed

Bug description:
  Hi,

  Not entirely sure why, but if a cloud has services running these 2
  versions of neutron (2:14.0.3-0ubuntu1~cloud0 and
  2:14.0.0-0ubuntu1.1~cloud0), networking is basically broken until
  everything is running 2:14.0.3-0ubuntu1~cloud0.

  Which causes networking disruption when not all nodes are upgraded at
  the same time.

  Thanks

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