

The Mac Pro 6,1 of course, didn't ship until late December of 2013. That's why the Late 2013 MBPs get Big Sur support. The late 2013 MBP was released in the latter part of October that Fall and had TH2 ports. The Late 2013 iMac was announced, 9/24/13, just before TH2 was ready to be included in a Mac. The Mid 2014 15,1 iMac has TH2 ports, the 14,2 iMac doesn't. It looks as if they use other criteria to determine which Macs can install and run the latest macOS.Īfter a good amount of research, it's clear to me now that Apple drew the line for Big Sur support at Desktop Macs and Macbook Pros that have Thunderbolt 2 controllers. It's more than capable of running Big Sur, especially if a 2014 Mac mini is able to. There seemed to be no good reason to drop the Late 2013 iMac from their list of supported Macs. When Apple announced which Macs would still be supported by macOS 11, I found it hard to believe they dropped support for 2013 iMacs and kept support for the 2013 MBP and 2013 Mac Pro.

The below table will list all supported and unsupported functions of the patcher currently:

System_profiler SPHardwareDataType | grep 'Model Identifier'
