Changes

'''March 1, 2015 ''' - SteamVR and HTC Vive were officially announced on March 1, 2015 in World Mobile Conference.

'''March 2 - 6, 2015 ''' - SteamVR and HTC Vive were showcased first time to the public.

'''April 21, 2015 ''' - Sign-ups for the Developer Edition of HTC Vive began.

'''April 30, 2015 ''' - [[OpenVR]] SDK was released.

'''June 5, 2015, ''' - HTC Vive Developer Editions (HTC Vive DK1) began shipping to developers selected by Valve.

'''January 5, 2016, ''' - HTC Vive Pre (HTC Vive DK2) was announced. 7000 of the HMD will ship to select developers in Q1 2016.

'''February 29, 2016, ''' - HTC Vive CV1 pre-orders begin.

'''April 2016, ''' - HTC Vive CV1 start to ship.

'''Febuary 11, 2016''': - SteamVR introduces [[Direct Mode]], allows the display driver to render to the HMD directly.