A new build, 16251, has been released to the fast ring. Quite a few nice additions in this build, but the Settings page is going to start getting crowded!

As always, make sure and read the known issues before upgrading. You might find a show stopper in your case. Many times, it’s an issue that is just annoying or doesn’t affect you at all.

Known issues for PC

If you installed Builds 16226-16237 and upgrade to this build, Storage Spaces will not work correctly. While Build 16241 contained a fix for the general reported issue with Storage Spaces in that build range, we discovered that the fix only applies for computers not already in the bad state, and need to do some extra work to return those already impacted to the good state. Special thanks to the Insiders that have helped us investigate this!
Trying to use the dictation hotkey (WIN + H) in UWP apps won’t work – you’ll see the UI come up and immediately dismiss. If you’d still like to use dictation, the microphone in the touch keyboard will work. You can right-click the Taskbar for an option to show the touch keyboard button if it’s not already visible.
We’re investigating your reports that after upgrading to the latest Insider Preview builds, some network settings are lost and revert to default settings. Static IP address configuration is reverted to DHCP. Networks which were marked as private are reverted to public. After the upgrade you will need to manually readjust your network settings back to your preferred settings.
Start, Action Center and notification toasts may at times have a background that is 100% transparent. A fix will be available in later flight – for now, if you encounter this issue, try ending ShellExperienceHost.exe via Task Manager or rebooting to resolve the issue.
Connecting to a VPN using a solution downloaded from the Windows Store may result in a system crash.
The battery flyout might show unexpected text for the % charged (specifically “%1!s!%2!s!% until fully charged”).