I know I'm incredibly late to the party, but I just picked up a Mac Pro 5,1 and am loving it so far. It has a Radeon RX 580, so Mojave is officially supported and seems to work very well. I went into this with the understanding that Apple's support would stop at Mojave, and am fine with it being a Mojave machine for its entire usable life, but I'm wondering how long that might be and if there are any potential problems that I may have overlooked.
I have a lot of vintage Macs that run various versions of OS X (or even OS 9), so using old software is not an issue in and of itself. But there are a lot of things to consider if you're talking about using something as your primary computer. Things like web browser security updates start to be a problem after a few years, and I'm also a little concerned about long-term support for things like iCloud or Apple Music, since I will be using this computer to manage my Photos and iTunes libraries. I realize that this is all speculation, but based on what's happened with past versions of the OS, how long do you think can we expect to use Mojave as a day-to-day OS before running into show-stopping issues?
I have a lot of vintage Macs that run various versions of OS X (or even OS 9), so using old software is not an issue in and of itself. But there are a lot of things to consider if you're talking about using something as your primary computer. Things like web browser security updates start to be a problem after a few years, and I'm also a little concerned about long-term support for things like iCloud or Apple Music, since I will be using this computer to manage my Photos and iTunes libraries. I realize that this is all speculation, but based on what's happened with past versions of the OS, how long do you think can we expect to use Mojave as a day-to-day OS before running into show-stopping issues?