I'm curious how others approach testing Mac Apps on earlier versions of Mac OS X.
I was hoping to run Yosemite in a Virtual Machine to make installing and testing my app easy. But it seems difficult to find a copy of the Yosemite installer anywhere, unless you'd downloaded it from the App Store. Unfortunately for me, Yosemite came pre-installed on my Mac.
Am I missing something> Is there a better way to test on older systems?
I asked the same exact thing in Feedback Assistant 4 years ago, and they told me that they have no plans on making old macOS installers available. Apparently they have no interest in allowing developers to support older macOS systems, which, assuming that their main interest is maximizing profit from Mac sales by pushing people to abandon old Macs that don't support the software they need anymore, totally makes sense.