References to a fourth-generation Time Capsule and a fifth-generation AirPort Extreme have been found within Apple’s latest AirPort Utility software update. Dwindling inventory and several reports over the past few weeks have suggested that Apple is preparing to refresh the AirPort Extreme and Time Capsule lines, and this new software update all but confirms the rumors. Also notable, references to software update caching have been found within the AirPort Utility update. This new feature will allow the devices to automatically download OS X and iOS software updates and store them locally until the user applies them. This background downloading feature will drastically reduce the perceived amount of time it takes to update Apple software.¬†Apple’s new Time Capsule and AirPort Extreme models are expected to become available shortly.