Frost, on 05 June 2018 - 01:16 PM, said:
Looks like my parents are getting dumped by Mojave soon though (unsurprisingly, a 2010 Mac mini and Late 2011 MacBook Pro are ancient at this point). I expect I'll be getting upgrade questions later this year.
It looks like the cutoff this year is Metal support. I can't think of a similar cutoff for the near future, so I bet your Best Damn MacBook Pro Ever will continue to get updates for a while.