Microsoft has now pushed Windows 10 Build 14383 to Insiders in Fast Ring and you can read about the full official changelog by clicking here. The build comes with its own share of know issues and you can read the known issues before taking the dive.

Known issues for PC

  • If you are seeing a notification pop-up once a day that started on 7/1 saying that your Windows evaluation copy expires on 7/15/2016, don’t worry – this is a superfluous dialog and your OS won’t expire.  The dialog will also go away soon.
  • A recent fix went into place for the Hyper-V firmware that will that affect the ability to boot Windows Server 2016 Tech Preview 5 VMs with Secure Boot enabled. A fix for TP5 builds has been developed however, due to release schedules, the Insider Preview build changes will be released before the TP5 fix is released. During that time, if you try to boot a new TP5 VM with Secure Boot enabled, it will fail. The workaround is to disable Secure Boot during this period.