Windows 10 build 10576: Everything you need to know

[WindowsCentral.com]

This week, Microsoft didn't release one, but two pre-release builds of Windows 10. Build 10581 rolled out to mobile devices and build 10576 for PCs to the Fast ring of updates. Both preview builds include changes and improvements overs their previous builds, but Microsoft is now simply focusing on fixing bugs and adding the finishing touches, as we are getting closer to the first public release of Windows 10 Mobile and the "Windows 10 Fall Update".

Full story from the WindowsCentral blog...