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Microsoft has released a new preview build of Windows 10 for both PC and Mobile for members of the Insider program in the Fast Ring



From Windows Central:
Microsoft's Gabriel Aul stated:

"This will be the first time we release builds for PC and mobile on the same day. For PC, Build 14271 brings a lot of improvements and bug fixes that are based on feedback we have received from Windows Insiders."
  Windows 10 PC build 14271 and Mobile preview build 14267.1004 released to Insiders in the Fast Ring