Reading Time: 3 minutes Note: there is a new version of this article at Adding DellEMC repository to VMware Update Manager. VMware vSphere Update Manager (VUM) enables centralized, automated patch and version management for VMware vSphere and offers support for VMware ESXi hosts, virtual machines, and virtual appliances. For ESXi hosts it can manage both the update and the upgrade workflows, but can also be powerful for adding custom VIB package, like for example new drivers.