QUOTE(Tenboro @ Mar 22 2016, 14:38)

While ratings were always common to a gallery chain, favorites were associated with single galleries, meaning that they could point to an older version of a gallery. Favorites are now set for a gallery chain, and will always point to the newest version of the gallery.
Notably, this means that when a previously favorited gallery is updated, it will show up as such on the front/search page, which means that you should be able to keep track of updates much more easily than before.
There seems to be a bug here. Normally, when favoriting a gallery, the favorite category will be displayed on the gallery page, below the rating. On a gallery that is an update of a previously favorited gallery however, it says "Add to favorites" there, even though it is already in my favorites.
Additionally, in the gallery index, the favorite icon wasn't displayed in front of the gallery title, so I couldn't see a favorite of mine was updated (referring to the second part of the quote above). I went ahead and added another (unrelated) gallery to my favorites to see if the icon not being there in the index is a general issue now, but after I did,
both galleries displayed the icon correctly. After removing the just added gallery, the other (the one that was missing the icon before) kept the icon.
So I suppose when a gallery gets updated something with the favorites isn't updated that should be.