Mountain Lion, the last of the “big cat” versions of the Mac operating system launched in July 2012 (latest version 10.8.5) and can run on the following Macs: MacBook (Late 2008 to 2010) ...

Here we’ll fill you in on the names of the different versions of the Mac operating system in order: from the newest macOS to the first version of Mac OS X and the codenames that Apple used for them.

Apple last month announced its latest update for MacOS 26, codenamed "Tahoe." It's full of new visual design elements like ...

Among the many versions of macOS and OS X released over the years, some stand out as exceptional -- or exceptionally bad. These are our picks from Mac history.

If you used a Mac computer in the '80s or '90s, you likely remember what's now called Classic Mac OS, the precursor to the OS called macOS today. You might think you would need to find an ancient ...

Apple's WWDC event nears as we move onto the second half of 2025, and we await our first look at the upcoming versions of its myriad operating systems. Following recent developments, it looks like ...

The latest M4-based Mac computers can't run older versions of macOS in virtualization. The likely culprit is a bug in the kernel boot process that might not be fixed. This issue doesn't affect the ...

If Apple’s macOS Sonoma operating system isn’t quite to your taste, you can downgrade to an older version. Here, we show you three different ways to do it.