An MSU that will allow you to upgrade a copy of Windows 8.1 to the leaked version of the update 1 that will arrive this spring has been leaked and is now available for download.
...of Windows updates, more Marshmallow, and the Edge of glory
Nokia Lumia Icon finally gets Windows 10 Mobile upgrade
Windows 10 Insider Preview build 14372 out now for PC and Mobile
The Oukitel C3 is an entry level device that ticks all the right boxes
99% of Windows 10 Mobile devices are Lumias (and other Windows phone insights)