Members of the Windows Insider program have some major news today, with Microsoft releasing Windows 10 build 20150 to the Dev channel, making it the first build to be released in preparation for the Windows 10 21H1 update. It's also the first build in a while to include any kind of significant addition.
But that's not all for today. Users in the Windows Server Insider program are also being moved over to 21H1, with build 20150 also being available to download today. Microsoft has been releasing some Windows Server builds alongside the Windows 10 equivalent, whereas they used to be a week or so behind.
While the big jump from the previous build could indicate that there are more significant changes, there's no telling what's actually changed. Just as we've seen for every Windows Server release after build 19551 back in January, there's no changelog for this build, though it's possible that Microsoft will publish it later.
Either way, those interested in trying the latest build can download it from the Windows Insider website to get started. Sometimes, Windows 10 SDK builds are also released alongside Windows Server builds, but that doesn't seem to be the case today.