Macos Server 5.6.3 Site
As a legacy version, 5.6.3 has developed several significant maintenance challenges for those still running it:
The defining characteristic of version 5.6.3 is how it handles traditional server services. This version began the process of services from new installations to signal their upcoming removal. Feature Type Status in 5.6.3 macOS Server 5.6.3
This version is the ultimate release for macOS High Sierra 10.13.6 . As a legacy version, 5
macOS Server 5.6.3, released on , stands as a pivotal "bridge" version in the history of Apple's server software. It was specifically designed to be the final version for users on macOS High Sierra (10.13.6) who needed to maintain traditional "open-source" server features before Apple's radical shift toward management-only tools. Core Purpose and Compatibility macOS Server 5
(Mail, DNS, DHCP, VPN, Websites, Wiki, Calendar, Contacts)
It served as a preparation point for the subsequent macOS Mojave-compatible version (5.7.1), which removed the vast majority of server features. The "Deprecated Services" Turning Point
Does 5.6.3 delete deprecated services? - Apple Support Community