https://www.techradar.com/news/apples-macos-1014-mojave-cuts-the-number-of-supported-macs > Apple has been traditionally known to support old models of its Macs, iPhones and iPads with its latest software, but with macOS 10.14 Mojave, that amount of supported devices will shrink a bit. These details were found within the release notes of the macOS 10.14 developer beta by AppleInsider. > To give some context, Apple’s current version of macOS, 10.13 High Sierra, supports Macs and MacBooks released as far back as 2010 and 2009 in some cases. However, with macOS 10.14 Mojave, Macs from before 2012 won't be supported, unless they are an iMac Pro.