Software Update High Sierra. Launch the App Store on your Mac click on the blue icon containing a white A. High Sierra might disappoint those looking for whizzy new features.
You can install macOS High Sierra update for about 45 minutes to 2 hours. Click Update on the top toolbar of App Store window wait for a few seconds and you will see Software Update. Nov 19 2020 - 2 Comments Apple has released Security Update 2020-006 for MacOS Mojave and macOS High Sierra users.
Open the disk image then open thepkg installer inside the disk image.
High Sierra is an update of MacOS which focuses mostly on back-end developments and a higher level of user security. As a result SCS Computing Facilities SCSCF is phasing out software support for all computers running macOS 1013 High Sierra and will end support on January 31 2021. High Sierra is an update of MacOS which focuses mostly on back-end developments and a higher level of user security. Click the Update button to download macOS High Sierra.