how to update application?

so when the time comes that I have to update the application, how do I do so?
do I change the version number in gamesalad when publishing? or do I have to go into itunes connect, click the app and change the information there?
do I change the version number in gamesalad when publishing? or do I have to go into itunes connect, click the app and change the information there?
Comments
Send and Receive Data using your own Server Tutorial! | Vote for A Long Way Home on Steam Greenlight! | Ten Years Left