Support upstream community goal for upgrade checks: https://governance.openstack.org/tc/goals/stein/upgrade-checkers.html
I think that with patches https://review.openstack.org/#/q/project:openstack/neutron+topic:upgrade-checkers merged upstream we can consider this bugzilla as done for OSP-15
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2019:2811