Hi Im currentky trying to update a few things in an older project of ours.. however.. that project used the OVRPlugin (the one where you had to replace some files/folders in your Unity-installation).. but I cant find where to download OVRPlugin 1.3 for Unity3D.. any idea?.. Most of the links that I managed to find on the net links back to Oculus dev-site.. however.. the page has been removed..
I had some similar confusion. "OVRPlugin 1.13" is not release yet. Unity 5.6 comes with 1.12 right now. It's misleading because all the other versions are 1.13. E.g. This is what I see in Unity Console at the moment: