It seems absolutely insane that a bug this critical could go on for nearly a year, and even stranger is that, unlike some of the other problems that occasionally arise in Apple's software, Apple has not once ever acknowledged a problem with Game Center and even in today's patch notes it doesn't mention anything about a fix for Game Center. It's baffling, but hey, that's Apple for ya. The most important thing is that (hopefully) we can put this entire thing behind us and won't have to worry about Game Center being a problem again.
So if you're like so many of us out there with a malfunctioning Game Center, head on over to your Settings app and hit General>Software Update to grab iOS 9.3.2, and for the first time in close to 9 months, I'll see you on the leaderboards!