As soon as I started the game, it popped up saying "Attention! This version is out of date. Please upgrade to the latest version!" ... so I hit okay and was taken to the Google Play Store. The update installed successfully, but when I reopened the game, I got the same message. So I restarted my device: same message. Then I uninstalled the game and restarted my device and then reinstalled the game: same message. Has it finally happened? Am I now officially locked out? It would seem so...