9to5Google
On both Android and iOS, YouTube gets new, more prominent Like and View counters in the expanded video description user interface. This UI change also shows more detailed and accurate upload date information. Now, when you extend or open the Description panel on the mobile app, you'll see a counter for Likes, Views, and the upload date. This counter won't be visible when the Description is contracted. YouTube didn't include Dislikes in this new format. You can't like or dislike videos from this view anyway. That's still something you need to do from the main preview pane.
Source: 9to5Google