macOS Sierra Developer Preview 10.12 Running on an Unsupported Mac
This is a demonstration/proof-of-concept of macOS Sierra 10.12 running on an unsupported Mid-2009 MacBook, as well as a Late-2008 MacBook Air. It works almost perfectly fine on both machines, with the exception of WiFi on the MacBook Air (which should be an easy fix). It actually runs surprisingly well on these unsupported machines. You can find the thread at http://forums.macrumors.com/threads/m... if you're interested.