MacOS Mojave runs on the following Macintosh computers: MacOS High Sierra requires at least 2 GB of RAM and 14.3 GB of available disk space. MacOS High Sierra runs on the following Macintosh computers: System requirements for macOS macOS High Sierra (10.13) See Software Downloads for more information on accessing the its-sfotware server. from on-campus in the Licenced folder on its-software server (smb://.nz/its-software/its-software/Licensed/macOS).Macs not owned by the University that came with Mac OS X Lion (10.6) and newer are licenced to run the latest compatible version of macOS.In 2010 the University of Otago purchased Mac OS X Snow Leopard (10.6) licences for every Mac owned by the University, so all University owned Macs are licenced to run the latest compatible version of macOS.Catalina is the latest operating system for Mac (will be released late September 2019) and is free to upgrade from Mac OS X Snow Leopard (10.6) or later.