Windows Server 2019 Build 17733 released
At the same time that Windows 10 Build 17738 was released for Fast Channel today, Microsoft also released new version updates for Windows Server 2019 and Windows 10 SDK, and the latest version number was upgraded to Build 17733. Unfortunately, Microsoft officials did not release an update log, so it is not clear what is correctly updated.
Given that Windows 10 RedStone 5 is currently in the final stage, I believe there should be no new features introduced. If you are using a beta version of Windows Server 2019, Microsoft wants you to actively feedback compatibility with Windows Server 2012 R2 and Windows Server 2016 applications, as well as other suggestions.