Microsoft has chosen to consolidate its Windows Kinect program to the Xbox One version of the device, or Kinect 2.0.
On the Kinect for Windows Blog, a post by Michael Fry, Senior Technology Evangelist for Kinect for Windows said
Over the past several months, we have seen unprecedented demand from the developer community for Kinect sensors and have experienced difficulty keeping up with requests in some markets. At the same time, we have seen the developer community respond positively to being able to use the Kinect for Xbox One sensor for Kinect for Windows app development, and we are happy to report that Kinect for Xbox One sensors and Kinect Adapter for Windows units are now readily available in most markets. You can purchase the Kinect for Xbox One sensor and Kinect Adapter for Windows in the Microsoft Store.
Those who already own the Kinect for Windows v2 sensor will also continue to be supported by Microsoft even if the device is no longer being sent through retail channels.
You’ll need a machine running 64 bit versions of Windows 8 or 8.1 to use the SDK that allows you to develop with Kinect 2.0.