Apple released server 5 prior to shipping El Capitan, shipped Server 4.0 concurrent with Yosemite shipping, and shipped Server 3 concurrently with Mavericks. There is basically never been a delay in shipping the Server app that's necessary for a new version of OS X/macOS.They tend to come out about 2-3 weeks after the new version on Mac OS is releaed. Sometimes even 2-3 months so you never know!
It will just be Server version 5.2
Ever since 5.0 (came out with OS X 10.11) Apple has made the server "OS independent" (Yosemite or higher needed though).
rockin the 5.2 Server here, so far so good!
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I would qualify it as 'somewhat' OS independent as the last two years' public OS beta program made the publicly available Server unusable in the beta. (And I don't see any documentation warning the beta testers of this)
I know that. We are not taking about the Server beta.When you sign up for the beta program you are notified of implications of running beta software. Furthermore the only way to obtain Server.app beta is to have a developer account.