Apple's macOS Catalina (10.15) is now available for free. It is the newest version of macOS, the operating system that powers the Mac.

System requirements for it are very similar to last year's for macOS Mojave. That version of the operating system brought about a bit of a cull of support for some older Macs. Mojave supported Apple computers made from 2012 onwards so Catalina again supports Macs made from 2012 onwards. 

The 2017 predecessor, High Sierra, ran on many older machines, even going back to 2009.

Which Macs can run macOS 10.15 Catalina?

  • MacBook (2015 or newer)
  • MacBook Air (2012 or newer)
  • MacBook Pro (2012 or newer)
  • Mac mini (2012 or newer)
  • iMac (2012 or newer)
  • iMac Pro (from 2017)
  • Mac Pro (2013 or newer)

The only difference between the system requirements for last year's Mojave and this year's Catalina is that some older versions of the Mac Pro - from 2010 and 2012 - are no longer supported. 

Of course, Apple can't support its hardware forever. Some new features need better processors to work and the older a machine is, the less powerful it tends to be.

Want to know more?

Check out our guide on Catalina. We discuss all the big, new features and how to get started with them.