Windows Server 2019 Preview Release Frequency

The default schedule for Server Insider preview builds is every other week. This may vary depending on build stability or other factors, such as where we are in the release cycle. Unlike Technical Previews of the past, Insider releases do come out more frequently so that we can obtain feedback on issues and address them more rapidly. We have also improved the upgrade experience to facilitate moving to a newer build more easily.  Please see Windows Server Semi-Annual Channel Update for more information about the changes to our offerings and release cycle. Thanks for your input.