
This led some to conclude that Apple is simply raising the bar to encourage hardware upgrades, and that there is often no incontrovertible hardware reason which dictates the unsupported machines. However, many Mac owners have questioned their motives, observing that some machines have made the cut whilst their more powerful contemporaries (such as the MacBook Pro) have mysteriously been left behind.

Citing various incompatibilities and hardware deficiencies, they cut out a large swathe of machines from running Sierra.


With macOS Sierra, Apple dropped support for some of its hardware models for the first time in several years.
