Changing camera projection matrices

Hi there! I was wondering if its possible to change the projection matrices for the left and right cameras? It looks like there used to be a Camera.SetStereoProjectionMatrices() method but it is now deprecated. I will be needing to change the projection matrices slightly on a frame by frame basis.

I'm using the newest Oculus SDK and Unity Plugin (1.31 and 1.30.0, respectively) for reference.