title: Windows Mobile & other Extensions for the UWP - which version should I use
body: <p>I have already got to know that in order to obtain DeviceId I should add reference to my project - "Windows Mobile Extensions for the UWP" this SDK comes with Visual Studio and is available in References Manager under Windows Universal/Extensions position.
  However there are two positions like that on the list, they come with different versions - 10.0.10240.0 and 10.0.10586.0.</p>
  
  <p>Which one of them should I use? Are there any differences that I should be aware of, or should I just keep using newer one? Are they related to the windows build number on the machine I want to run my app?</p>