Windows Server 2019 coming later this year, preview now available
Built on top of Windows Server 2016, the 2019 edition is focused on four main areas: enabling hybrid cloud scenarios; enhancing security; optimizing development process and performance of app platforms; and improving deployment of hyper-converged infrastructure.
To be a bit more specific, Windows Server 2019 seeks to make hybrid scenarios (cloud plus on-premise) work better. For example, together with “Project Honolulu”, a new browser-based, management tool set for Windows Server and Windows 10, it becomes easier for customers to connect existing deployments of Windows Server to Azure services.
Windows Server 2019 also builds on the foundation of Server 2016 to bring new security capabilities. Microsoft has announced that Windows Defender Advanced Threat Protection will be part of Windows Server 2019.
It's worth pointing out that Windows Server 2019 is the next release in the Long-Term Servicing Channel, and it'll be Microsoft's recommended version of Windows Server for most of the infrastructure scenarios, including workloads like Microsoft SQL Server, Microsoft SharePoint, and Windows Server Software-defined solutions. As an LTSC release, it'll get five years of mainstream support and five years of extended support.