Windows 10 PC build 14931 and mobile build 10.0.14931.1000 Windows 10 Redstone 2 Build 14926 (10.0.14926.1000) Redstone 2 PC build 14921 and Mobile build 10.0.14921 build 14910 and Mobile build 10.0.14910 Insider Build do not Show Up build 14904 (10.0.14904) Build 14902 Mobile build 10.0.14902.1000 Windows 10 Redstone 2 build 14901 and Mobile build 10.0.14901.1001

Microsoft is now seeding Windows 10 Redstone 2 build 14931. The latest Redstone 2 PC build 14931 is now available to fast ring insiders. The information about the latest R2 build leaked a few days ago. Previously, the company had released build 14926 for insiders.

New Apps with Windows 10 Build 14931 (10.0.14931)

Feedback Hub Update: Feedback Hub has been updated to version 1.1608.2441.0. This update contains some highly requested features from Windows Insiders including dark mode, showing the original feedback author in the feedback details, and a settings page for Feedback Hub. To enable dark mode, just go into settings in Feedback Hub.

Maps App Update: The Maps app was updated to version 5.1609.2580.0+ last week. You can now you can check the traffic to your Home or Work locations at any time by tapping the Traffic icon in the app bar. You will see traffic conditions to Home and Work and your most recently viewed traffic cameras so that you can stay on top of the road conditions along your route. Additionally, the Maps app now follows your system setting for theme preference for light or dark mode. And you can choose to change the map theme too!

Send SMS with Skype Preview: You can now try out sending and receiving SMS and MMS messages directly from a Windows 10 PC when Skype on their Windows 10 Mobile phone is set as the default messaging app. Give it a try and let us know what you think. For more details, see this blog post from the Skype Team.

Native support for USB Audio 2.0: Native support for USB Audio 2.0 devices with an inbox class driver has been added. This is an early version of the driver that does not have all features enabled, for e.g.: only playback (render) is supported with this version. Recording (capture) support is scheduled to arrive in later iterations. We encourage you to play with the driver and let us know what you think (using the Feedback app). If you already have third party drivers for your USB Audio 2.0 device installed, follow instructions in this blog post to switch to using the inbox class driver.

Fixed in Windows 10 PC Build 14931

  • Build 14931 fixed the issue causing people to experience a black screen when signing out and switching to another user account and unable to log in to that account.
  • Build 14931 fixed the issue causing the built-in Windows 10 apps such as Calculator, Alarms & Clock, and Voice Recorder to not work after updating to a new build.

Known issues for Build 14931

  • While using Narrator and Groove Music, if you navigate to the progress bar while a song is playing then Narrator will continually speak the progress of the song e.g. update with the current time of the progress bar every second. The result is you will be unable to listen to the song or hear any other control you navigate to.
  • Oracle VM VirtualBox will crash on launch after upgrading to this build.
  • Optional components may not work after upgrading to this build. To get it working again, go to “Turn Windows features on or off”, scroll down and check the right optional component and click ok.  After a reboot, the optional component will be enabled again.
  • For keyboard users, using tab to navigate the Settings app will not work in this build. The arrow keys should work as a temporary workaround.
  • Tencent apps and games will cause your PC to bugcheck (bluescreen).

A note about Mobile

Microsoft is not releasing Build 14931 for Mobile. After upgrading to Build 14926, some Insiders reported that the pin pad is no longer visible to unlock their phone even after rebooting the phone and some phones lost the ability to use their SIM card. In both cases, a hard reset of resolves the issue. Based on the feedback we received from Insiders, we have decided not to release a new Mobile build this week until we get fixes for these two issues.

Microsoft warned insider members that initial Redstone 2 builds will be more buggy than usual. Microsoft next major updates Redstone 2 and Redstone 3 are coming in 2017.