Like, for instance, maybe you're running Sierra but your Mac can run High Sierra and for some reason you haven't gotten around to upgrading to High Sierra yet. So how do you get to a newer operating system that can run on your computer but is newer than what you've got. As a matter of fact if you don't see it here and you can't get to it in the Mac App Store that probably means your Mac is too old. But if your Mac is too old you won't be able to. If you want to upgrade to Mojave you can simply search for Mojave in the Mac App Store and it comes up and you can upgrade from there. You get the latest features and you get the best security. I'm a big advocate of always running the latest software.

If you have a recent Mac from the last few years you can probably update to Mojave and you've probably been bugged to do so.

Video Transcript: What if you have a Mac that is too old to run macOS Mojave but you're not at the latest operating system that that Mac can run. Check out Upgrading Older Macs To Earlier Versions Of macOS at YouTube for closed captioning and more options.

How to update your mac software 10.13