Editor's note: Microsoft has temporarily put its rollout of Windows Server 2019 on hold due to a glitch with Windows 10 that could affect Windows Server 2019. This story provides advice on what do do about Windows Server 2019 deployments once that problem is cleared up.\nMicrosoft has released Windows Server 2019 to general availability, formally bringing to market the first major release of the Windows Server operating system in three years.\nSubscribers have had the chance to explore the new platform for months, but for those who have held off fiddling with Windows Server 2019 until this official release, it is now formally available for download.\n\nSecurity, resiliency, SDN\nSome of the top features of Windows Server 2019 include enterprise-grade support for hyperconverged infrastructure that is bundled in with the server license, a new desktop GUI, the Project Honolulu server-management tool, security improvements, more efficient containers and subsystem for running Linux on the server.\nThe new release also embraces software-defined networking (SDN) including virtual-network peering and encryption, auditing and IPv6 support. One of the security features makes it simpler to encrypt communications among systems to protect data.\nWindows Server 2019 provides resiliency for shielded virtual machines by making it possible to set up primary and secondary host guardian service (HGS) servers so if one fails, the other kicks in. HGS provides attestation and key protection that are needed to run shielded VMs.\nReplace beta code now\nFor those who haven\u2019t prepped for moving to Windows Server 2019, a sensible approach is to start with the most commonly deployed areas: native Windows Server features, data-center-focused components and new Windows Admin Center management tools.\nAny organization that has downloaded a preview release should download and replace any beta code, files and installations with the code in the general availability release.\nEarly adopters of Windows Server 2019 have found the code base to be extremely dependable because of the testing that the semi-annual release cycle has enabled. As a result, hesitancy of organizations to jump into this major update should be lessened and so encourage a more aggressive adoption cycle by enterprises.\nThe new Windows Server release schedule\nGeneral availability of any product release from Microsoft means the beta testing cycle is over, the code has gone through testing and validation and is formally available to organizations to begin production deployment.\nHowever, unlike previous releases of Windows Server where general availability would mean a significant overhaul from the previous version, which would be three to four years old. But starting with Windows Server 2016, Microsoft initiated a cycle of interim releases of the Windows Server code.\nThat means for the past three years, organizations that elected to be on semi-annual channel distribution plans have received code updates every six months, so many of the \u201cnew\u201d features released in Windows Server 2019 have already been trialed.\nThese semi-annual releases have enabled the vetting of new features and functions so, unlike previous major releases where everything was completely new and untested in diverse environments, a lot of features and functions are on second, third and even fourth updates.