Apple recently announced that macOS Server would be changing, “focus more on management of computers, devices, and storage on your network.” But for many people who depend on macOS Server, this will be problematic.
Apple recently released a macOS Server Service Migration Guide that is:
designed to assist those administrators comfortable with installing and maintaining open source projects to migrate their service data to the underlying open source project that was previously bundled with macOS Server.
This guide essentially tells system administrators how to install software that will replicate the features that will be removed from macOS Server. It’s a lot of heavy lifting, but if you depend on Server, you should either read this and prepare for the changes, or not update (but, of course, that’s not a viable long-term solution).