I just went and checked. Surprisingly, they added the month view to portrait and brought back the week view (who had the idea that "week" has 5 days is beyond me). If you turn your device to landscape position however, you get only the week view, with no ability to change it.
I always never use landscape because it is not handy enough for me (I use a smartphone not a tablet). I actually turned the reorientation accessibility feature off.
