How to update my PS3 games?

So I bought Minecraft on the PS store for the PS3 and people are saying an update is coming soon, but I don't know how to update it. I know it hasn't came out yet but want to know how before it does.

You can't do an update before it's available. PS3 games automatically ask to update when it's available. So just wait for the update and it will automatically detect it.

When you go to play the game, as it is starting up, it will say Version x.xx (whatever version it is) is available for download.

You just confirm it

When the update is released, the game will tell you when started that there's an update available, and to continue using online, you will need to update. You can obviously decline but you will forfiet the use of that game online until you update. If you decline, the prompt will come up every time you start the game until you accept

As long as you are connected to the Internet, it will update automatically when you start the game.