"Threshold" aka Windows 9
At the BUILD developer conference in April 2014, Microsoft will discuss its vision for the future of Windows, including a year-off release codenamed “Threshold” that will most likely be called Windows 9. Here’s what I know about the next major release of Windows.
As a kind of recap, we know that Microsoft will update Windows 8.1 in 2014, first with a service pack/feature pack-type update called Update 1 (or GDR1 internally). I wrote a bit about this update recently in Windows 8.1 Update 1 (Very Early) Preview but the expectation is that it will ship in April 2014 alongside Windows Phone 8.1, the development of which Microsoft will soon complete.
Microsoft tries to put Windows 8 in the rear-view mirror
Windows 8 is all about innovation and change, “Threshold” (Windows 9) will be the Windows iteration that hopefully brings the phone/desktop together and unified as one – hopefully.