Officially, the operating system that was available on your Mac at the time that you bought it is the oldest version of macOS that can run on that Mac. It’s likely that an older OS won’t ...

"SDL" is short for the Simple DirectMedia Layer. It's a set of libraries providing a sort of hardware abstraction layer for ...

The latest M4-based Mac computers ... of operating system and hardware configurations purely in software. It's commonly used in software development to test various software versions on different ...

If you used a Mac ... versions of NeXTSTEP, which Steve Jobs worked on after being fired from Apple in the 1980s. A lot of ...

For more help read: How to install older versions of macOS or OS X. (If those links don’t work close the Mac App Store and cut and paste the links into Safari. For more advice on getting hold of ...

Legacy Apple hardware tends to be left behind, unable to use Apple's latest operating system generations. The updates to older versions help ensure security and performance, as well as ...

One volume contains Lion and another runs an older version of the Mac OS. When you need to spend some quality Rosetta time, you boot into the older OS. And yes, this is a pain. The other option is to ...