As far as I know the MacOS 12 "Golden Master" was never released into public beta so this morning I installed the released version of MacOS 12 just to start from a solid baseline. A little before noon I saw a notice that the MacOS 12.1 beta was available for download. So in a little more than four hours I have had three versions of MacOS 12 on my desktop Mac mini: MacOS 12 public beta, Mac OS 10.12 release, and Mac OS 10.12.1 public beta.
When I attempted to install Mac OS 10.12 on my early 2009 Mac mini, it would not install. 😨 Ah well progress is inevitable and that inevitably means some things get left behind. It still works well as a server running El Capitan however.
Last edited by joemikeb; 09/22/16 08:24 PM.