A separate but integral part of the Windows Insider Program that business and enterprise users can access, is the development process for Windows Server 2019 which is the next on-premises version of Microsoft's server operating system.
Windows Server 2019 could likely be the final stand alone version of Windows Server that Microsoft makes available for on-premises customers however, the only thing we can confirm is that Windows Server 2019 is expected to be released in the second half of 2018.
Just like our Windows 10 Redstone 5 tracker for PC build releases, the Windows Server 2019 build tracker will give you an easy to use chronological reference of development builds as they are released by Microsoft to members of the Windows Insider Program for Business.
This gallery shows the Windows Server 2019 builds in the order they have been released starting with the most recent and going backwards from there. Just click through the gallery images to review the builds that have been made available to the Windows Insider Program for Business.
Note: All update information is courtesy of Microsoft.