When you think "pro desktop," you probably don't think of the iMac. You can get one with a pro-quality display and a high-end (consumer) processor that will do the job for many tasks, but you likely wouldn't buy one for massive 3D modeling or video projects. However, Apple might have you changing your mind before long. As part of a roundtable on the future of Mac desktops, the company's Phil Schiller has promised that there will be iMac configurations made "specifically with the pro customer in mind" later in 2017. And before you ask: no, this doesn't mean a touchscreen-centric design akin to Microsoft's Surface Studio.
Schiller claims that touch input "doesn't even register" on the concerns brought up by pros. They're thinking "performance and storage and expandability," he says. This probably doesn't mean tearing open your iMac like you would a typical mid-tower desktop, but there are obvious candidates for improvements. You could see faster processors (such as Xeons or Core i7s with more than four cores), better graphics chipsets than the mobile parts you see now, higher-capacity storage options and, of course, Thunderbolt 3 ports.
There are limits to what you can stuff into an all-in-one chassis, and it's reasonable to say that the iMac won't scratch the itch for many pros -- these are the people who frequently want 12-core chips, multiple graphics cards and as much memory as humanly possible. But between this and the planned 2018 Mac Pro redesign, it's evident that Apple is acknowledging complaints that it isn't taking desktops seriously.
Apple is bringing the iPhone's night mode to the Mac
Ask Mac users which app they install first and they may well point you toF.lux, which adjusts the color temperature of your screen to cut back on eye strain as night sets in. Well, that recommendation may have just gone out the window for most people. Users have discovered that the latest macOS Sierra beta (10.12.4) includes a Night Shift mode that, like its iOS counterpart, can automatically shift toward a warmer tint. You can set a schedule (say, when sunset arrives) and fine-tune the colors in case they're a little too pronounced for your liking.
It's not certain when 10.12.4 will be available to everyone, although minor releases like this don't spend a lot of time in development. Between this and Windows 10's upcoming blue light reduction mode, though, you won't have to track down third-party software just to help your eyes relax before bed. That's not to say that other light-shifting utilities are completely obsolete (F.lux has advanced features like a weekend sleep-in option), but they won't be as important as they are now.