With the release of Sierra, Apple decided to drop support for some Mac models that were supported by several previous releases of the Mac operating system. 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
