upgrade from 4.4.10 to 4.5.0-0.nightly-2020-06-26-215024, there is not AlertmanagerConfigInconsistent alert during the upgrade progress and after the cluster is upgraded successfully
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/RHBA-2020:2409