Now that the Oculus Rift DK2 is here, Valve has announced that the SteamVR beta now supports Oculus' latest VR headset. Thanks to the increased resolution and added features in the DK2 headset, the latest SteamVR beta has been updated to better support the Oculus Rift DK2 unit.
Valve's official change log for the updated SteamVR beta sees that it is still a beta of course, but it has full support for the Oculus Rift DK2, with positional tracking also being supported on both Windows and OS X. The latest SteamVR beta also includes a fix for an issue that saw the middleware application itself, vrserver.exe, to run even if there is no HMD detected, slowly increasing its load on the CPU time until the entire system was under pressure.
Linux and SteamOS don't have positional tracking support just yet, something that should arrive in a future update. The current SteamVR beta also requires Oculus Rift DK2 owners to have their DK2s in 'Extend Desktop to the HMD' option enabled, and not the 'Direct HMD Access from Apps' option.