Are you asking how to access the drawer? If so, you must go to the first tab, then at the top left, you have an icon, which opens the drawer (then inside the drawer you have the list of subscriptions). Not sure if that’s the only way to do this, since I’ve only had the update for a few hours.
Kinda, the hamburger menu icon opens the drawer – the drawer is the element that opens on top, containing the list of subscriptions. I guess a menu and a drawer are similar concepts.