I used the latest that wasn't beta although I've had feedback that it doesn't work for DK2 and some asking for positional tracking, not sure how I can achieve this with DK1 as it doesn't have positional tracking therefore testing this is impossible for me.
There's a lot of expectation that a DK1 build is meant to work for DK2 yet I have no means of testing this which is a little frustrating, particularly so that everyone that has recently purchased a DK2 wants to work a DK1 build on their headset.
I believe the positional tracking is automatic when using the OVRPlayerController/OVRCameraRig prefabs. On DK1 it will "fake" the position using a neck-head model, and on DK2 it should use the camera. If you have done something really custom, maybe it is conflicting with this code.