1. A method for upgrading software in a dispersed data storage network (DDSN), the method comprises: selecting a vault from a list of vaults within the DDSN, wherein a vault in the list of vaults identifies at least one user account and devices within the DDSN allocated to the vault; creating an upgrade set in a list of upgrade sets of devices from the selected vault and the devices within the DDSN allocated to the vault by: determining whether a device in the upgrade set of devices is associated with another vault; when the device in the upgrade set of devices is associated with another vault of the list of vaults, determining a list of devices in the DDSN identified in the another vault; adding the list of devices in the DDSN identified in the another vault to the upgrade set of devices; and adding the upgrade set of devices to the list of upgrade sets of devices, wherein: a first type of device of the devices within the DDSN allocated to the vault performs a slice server function of storing or retrieving a data slice of a plurality of data slices; and a second type of device of the devices within the DDSN allocated to the vault performs a grid access function of: executing an information dispersal algorithm to convert data into the plurality of data slices or to convert at least a threshold number of the plurality of data slices into the data; and executing a write operation or a read operation regarding at least some of the plurality of data slices; determining whether the upgrade set in the list of upgrade sets is ready for upgrade processing; and when the upgrade set is ready for upgrade processing: determining whether the slice server function of a first type of device within the upgrade set is to be upgraded; when the slice server function of the first type of device is to be upgraded, upgrading the slice server function of the first type of device; determining whether the grid access function of a second type of device within the upgrade set is to be upgraded; and when the grid access function of a second type of device within the upgrade set is to be upgraded, upgrading the grid access function of the second type of device.