One of the many benefits to upgrading to iOS 7 is that it gives you a way to automate app updates. No longer do you have to manually swipe through a list of apps begging for a feature refresh. It can be a great time saver, if you're like me and want to always have the latest version of an app.
By default this feature is turned on, but there is a way to turn it off should you choose to. Simply go to Settings --> iTunes & App Store --> Automatic Downloads section --> Updates. Simply tap (or swipe the switch to the left to disable this feature. This is handy if you like to be notified of which apps need to be updated and you want to choose which to update.