With macOS High Sierra, Apple introduced a new file system creatively named Apple File System (APFS), replacing the old HFS+ file system (also known as Mac OS Extended) from the 90s. Unfortunately, Deep Freeze at the time was incompatible with APFS-formatted volumes, preventing us from upgrading our public Macs beyond macOS Sierra. For those unfamiliar with Faronics Deep Freeze, it is reboot to restore software; in other words, any changes made to a computer do not persist across reboots, thus protecting the machine and reducing administrative time.
Faronics recently released Deep Freeze Mac version 7 with full APFS compatibility, allowing us to upgrade to the recently released macOS Mojave starting with the Science Library’s public iMacs. LTDS plans to upgrade the remaining public Macs this summer.