24 or a little afterward, if your Mac can run Mojave, it will alert you that the update is available. If you want to install the update manually, head over to Apple's software download page.

Wondering which versions of macOS your Mac can run? We’ve put together a macOS compatibility checker that will show you what Macs the different versions of macOS and Mac OS X support ...

And no, Apple is not merging macOS and iOS -- but it is bringing some iOS apps to the Mac. SEE ALSO: Live from Apple WWDC 2018 For many users, the most important new feature in macOS Mojave will ...