Microsoft has just announced the release of Windows Server 2019 Preview build 17650, the latest preview build of the Windows Server vNext Long-Term Servicing Channel (LTSC). Windows Insiders can also download today a new build of the next Windows Server Semi-Annual Channel release (aka Windows Server version 1803), which should become generally available in the first half of calendar year 2018. Please note that the build number is identical for this release.
— Dona Sarkar (@donasarkar) April 24, 2018
The Windows Insider team said today they’d like to get feedback about two specific things: upgrades from Windows Server 2012 R2 and Windows Server 2016, as well as application compatibility. That being said, the latest Windows Server 2019 Insider Preview comes with several new features including enhancements for Failover Clustering and Storage Replica. We invite you to check the Windows Insider blog for the full details.
As usual, the latest Windows Server 2019 preview and Windows Server version 1803 preview are available through the Windows Insiders website. Be aware that Windows Server 2019 Preview build 17650 contains both the Desktop Experience as well as Server Core in all 18 server languages.