The latest version of the Apple Server app is out (macOS Server 5.4), and before you upgrade, there are a few points to review: As always, make a clone of your computer before upgrading. During the upgrade to High Sierra, if the operating system is running on a solid state drive, the drive will automatically upgrade to APFS. You cannot share APFS volumes over AFP, so if you’re running file services, make sure you’re aware of that. You can choose not to upgrade to APFS using the command line to upgrade a server. Even though the file sharing services are not in the Server app, you can still configure ACLs…