You will be notified when a new version of the game is available to download.
The newest version always has the most recent bug fixes, so if you encounter any issues and you weren't on the latest version, you should consider updating your game!
Update now to the latest version:
Android: https://play.google.com/store/apps/details?id=com.coldfiregames.spaceclicker
iOS: https://itunes.apple.com/us/app/idle-space-clicker/id1172273263