Here is the Microsoft presentation on all the new features and developments in Windows 10 related to 3D printing. It describes new workflow, apps, API, drivers and new 3MF format.
Full presentation:
https://channel9.msdn.com/Events/Build/2015/2-718
3mf format homepage:
http://3mf.io/
Full presentation:
https://channel9.msdn.com/Events/Build/2015/2-718
3mf format homepage:
http://3mf.io/