Staying up-to-date with the latest updates of the game is important in order to access the latest features as well as to avoid inconveniences within the game.
To make sure you always receive the latest machines and features being launched, we recommend you activate the Auto-approval in the Store's settings.
Go to Settings> iTunes & App Store> Automatic downloads, and enable the "Apps" option.
Open the "Play Store". Once there, you will find an icon on the left side of the search bar with three horizontal bars. Tap on the icon, go to Settings , and select "Auto update apps".
You may also update your apps manually by searching for them in the Store and selecting "Update". Bear in mind that the update dates may be different for Play Store and the App Store.