Why was tesselation factor removed?

I haven't used Designer in a little while (busy at work), but I booted it up yesterday, only to see that Tessellation Factor is now gone. And the base high-res plane has nowhere near enough geo to be of any use without tessellation.

Why on earth was this removed?  I know I could make a super dense plane in Max etc, but I really shouldn't need to. I see parallax occlusion mapping is also now gone. Again, why?

This makes no sense.