Well, the title… I have 12.7 and it doesn’t want to open. Thanks!
That’s quite old. Is it an Intel Mac?
Hi again Stewart. Yes, it’s old but it serves me fine, even for CAD/CAM. It is an Intel Mac form 2015. Not sure what’s the highest version it supports. Thanks
No judgement 
I still have Mac laptops from that era that I still use. But the Kiri build for Mac is for ARM processors.
Thank you Stewart, I know you didn’t mean to judge, and I’m very grateful that you helped me on the other thread. I’m actually typing this on an even older 2013 11 inch, and I still love it. Will probably need to end up putting Linux on it so I can keep running some programs. Hopefully Kirimoto as well