When using an external vCenter, the life cycle of the vCenter appliance is not managed by the VxRail appliance and must be managed manually. Before upgrading the VxRail clusters, ensure that the vCenter is upgraded to a supported version in accordance with the VxRail and external vCenter interoperability matrix. For additional information about the procedure to update the external vCenter appliance, see the VxRail: How to upgrade external vCenter appliance Knowledge Base article (login required).