I just had a deeper look into the disappearance of Game centre. Wut. So how do i add someone just for high scores and lists of games they're playing and stuff?
doesn't seem like you can.
You also can't remove any friend individually, only option available right now is to delete all friends at once. A person I added a while ago started spamming a bit the other day and the only solution that wasn't removing my whole friends list was to deactivate all GC notifications.
It's totally half-assed. The way they did it is almost worse than flat-out erasing all GC functionality.
The modern iOS 10 Game Center friend management/invites etc. APIs are handled via games themselves and the Contacts and Messages app actually (remember in Apple's eyes the only friends you have are real life friends so they're in your Contacts app). It just hinges on developers updating their apps to make use of the changes.
http://appleinsider.com/articles/16...nter-app-gone-invites-are-managed-by-messages