Here are two ways you can update your apps in iTunes 11.03.
1. Go to Apps in iTunes.
2. Click the Updates tab.
3. You can click the Update All Apps button to update all of your apps.
4. Or you can select the apps you want to update, then right-click and update only those apps.
iTunes 11.03 handles app updates differently, but the new changes can be quite useful if you just want to update a select number of apps.
Read more: iLounge