"macOS Mojave drops support for some older Macs and will run on 2015 and newer MacBooks, 2012 and newer MacBook Air, MacBook Pro, Mac mini, and iMac models, the 2017 iMac Pro, and Mac Pro models from late 2013 and mid-2010 and mid-2012 models with Metal-capable GPUs."
So it's the end of the road for a lot of Macs. Basically everything before 2012 except for the Mac Pros will be officially obsolete no matter if they're souped up with 16GB RAM and SATA SSDs all because of the old iGPU or dGPU.
At least some of these machines had much longer lifespans than the first Intel Macs and Core 2 Duos.
So it's the end of the road for a lot of Macs. Basically everything before 2012 except for the Mac Pros will be officially obsolete no matter if they're souped up with 16GB RAM and SATA SSDs all because of the old iGPU or dGPU.
At least some of these machines had much longer lifespans than the first Intel Macs and Core 2 Duos.