It's a decent change to the Arena, really small text though.

It seems like when you claim the common dungeon key in the daily achievements, it opens the dungeon immediately, then. you have to play it within 8 hours.... or not.
I have 11 stored up from before the update. I guess they don't want us sitting on them anymore.

P.S. 150 free ironite for our inconvenience on the update
https://tinyurl.com/y6etblx8