Beyond the newly enforced automatic security checks on EFI firmware being done each week, this new OS update, the macOS 10.13 High Sierra, comes with cool new features. Mac OS 10.13 High Sierra Update FeaturesĪpple has wowed its loyal subject, once again, by introducing a new OS update. Sometimes, the main culprit could be a ghost update. Usually when an app releases its update, it is directly indicated in the App Store, but in this case, you get the update and when you proceed to download it, you get a pop-up showing “No Update Available”.

To be precise, their App Store feature is not working as it should or at least, as it did before the update. Some Mac users have reported technical issues once they update their OS to the High Sierra Update.