The updates are rolled out in phases over different regions (update isn't live in Europe yet, for example), and server-side updates (such as the release of new Pokémon) are worldwide, so they tend to wait with those until all regions have had the update. Probably by the weekend.The newest update seems to have hit my phone. While I haven't seen any new Pokémon yet, I've noticed all my Pokémon have genders now (making some of their names awkward, but whatev). Are they going to let us breed them? I haven't seen that in any of the announcements.
And for a minor rant...with the costume update, they seemed to have removed the red hair. Or now it's more reddish brown. I had the same problem with my Mii back in the day. Is it really that hard to make red when you can have blue or purple? C'mon Japan.