The version number is significant. It was the first Mountain Lion update that properly supported NVIDIA Kepler GPUs (like the GTX 660 and 670) out-of-the-box, making it a favorite for budget gaming-rig-to-Mac conversions.
For modern hardware, the community has largely moved away from "distros" like iAtkos in favor of OpenCore or Clover , which use a "vanilla" installation method for better stability and easier updates. iatkos ml2 mac os x mountain lion 1083 verified