High Sierra’s system requirements are the same, except that High Sierra now requires 14.3 GB of available disk space, and a minimum of OS X Mountain Lion (10.8) to do a direct-upgrade installation.Īpple recently released a new version of its Mac operating system, macOS Sierra (version 10.12). Note: Although this article was written for macOS Sierra (10.12), much of it still applies to macOS High Sierra (10.13) which was released in September 2017. Apple + How To + Recommended What to Do if Your Mac Can’t Run macOS Sierra
