There are two versions of Windows Admin Center available for download:
Windows Admin Center
For IT admins who are not able to update frequently or who want more validation time for the releases they use in production, this version is for you. Our current generally available (GA) release is Windows Admin Center 1910.
Windows Admin Center (non-preview) releases are supported continuously, based on Microsoft's Modern Lifecycle Policy. This means that only the latest version of Windows Admin Center is serviced and supported, and users must stay current by upgrading to the latest Windows Admin Center release within 30 days of availability to remain supported. This policy applies to both the Windows Admin Center platform itself, as well as any released (non-preview) Microsoft extensions published in the Windows Admin Center extension feed. Note that some extensions may be updated more frequently than others, between Windows Admin Center releases.For info about Windows Admin Center Preview releases, see Windows Insider Preview releases.
To get the latest release, download here.
Windows Admin Center Preview
For IT admins who want the latest and greatest features on a regular cadence, this version is for you. Our intent is to provide subsequent update releases every month or so. The core platform continues to be production-ready and the license provides production use rights. However, note that you will see the introduction of new tools and capabilities which are clearly marked as PREVIEW and are suitable for evaluation and testing.
To get the latest Insider Preview release, registered Insiders may download Windows Admin Center Preview directly from the Windows Server Insider Preview download page, under the Additional Downloads dropdown. If you have not yet registered as an Insider, see Getting Started with Windows Server on the Windows Insiders for Business portal.