How to Manually Check for New macOS Updates Jan 27, 2021 11:36 EST Today we will show you how you can manually check for macOS updates running on your iMac, MacBook or even Mac Pro. You can Check for Updates in Real Time on Your Mac Running macOS, Here's How You do it Here's a situation - Apple releases a brand new macOS update and you go ahead to see if it's available for you. You open up the Software Update page and there's nothing there. Obviously, you need to keep on refreshing the page until the update shows up. But, you really can't do that. You have to wait a few minutes and open up Software Update again to check for updates. That's how things are. There is no refresh button here which you can keep on pressing to make macOS search for a new update.