Microsoft has released new builds of Windows Server 2019 Insider Preview and Windows 10 SDK Preview:

Windows Server 2019 Insider Preview Build 17744
Windows 10 SDK Preview Build 17744 available now

Windows Server 2019 Insider Preview Build 17744

Hello Windows Insiders! Today we are pleased to release a new build of the Windows Server vNext Long-Term Servicing Channel (LTSC) release that contains both the Desktop Experience and Server Core, as well as a new build of the next Windows Server Semi-Annual Channel release and Microsoft Hyper-V Server.

What’s New
To see the full list of new functionality introduced in earlier builds of Windows Server, see aka.ms/ServerInsider-WhatsNew.

Microsoft Hyper-V Server: Improvements
For Windows Server 2019, Microsoft Hyper-V Server provides a robust, optimized enterprise-class virtualization platform that enables improved server utilization and reduced costs. This preview release of Microsoft Hyper-V Server includes various updates and fixes including:

Installation no longer prompts for a product key. Microsoft Hyper-V Server is an enterprise hypervisor that is provided at no additional cost.
Administrators are now properly prompted to change their passwords when initially signing in.
Updated installation branding.
Microsoft Hyper-V Server 2019 also includes additional features such as:

Failover Clustering hardening. Failover Clustering no longer requires the use of NTLM.
Server Message Block (SMB) hardening. SMB 1.0 is disabled by default.
Windows Subsystem for Linux is built in.
Windows Defender Advanced Threat Protection is built in.
.NET Framework 4.7 is built-in. (Microsoft Hyper-V Server 2016 included .NET Framework 4.6).
Finally, Microsoft Hyper-V Server can be fully managed by Windows Admin Center to provide a modern, remote management solution that integrates with Azure Backup, disaster recovery, and more.

Read full article @ Windows Team Blog

Windows 10 SDK Preview Build 17744 available now

Today, we released a new Windows 10 Preview Build of the SDK to be used in conjunction with Windows 10 Insider Preview (Build 17744 or greater). The Preview SDK Build 17744 contains bug fixes and under development changes to the API surface area. The Preview SDK can be downloaded from developer section on Windows Insider.

Read full article @ Windows Team Blog