The 2018 Mac mini just launched as the most powerful Mac (for the price), and it got a massive upgrade after four years of neglect. This is prompting a lot of folks to wonder if it's time to upgrade the Mac minis in their life. iOS and Mac app development teams are interested in upgrading their continuous integration (CI) infrastructure. Mac minis behind TVs, under desks, and in closets could also be good candidates for a refresh.