Upgrading applications you created with Extender, SmartList Builder, or Excel Report Builder is simpler than updating a VBA project.
Somebody else, say Microsoft, will work out any code problems with the functionality of the actual Extender or Builder modules themselves!
Your job is to check the dataset delivered by your SmartList objects or Excel reports, and make sure your Go Tos go to the right place. Test your Extender windows to make sure they open at the right time, the conditions work, the linked tables work, and the fields show up in a SmartList object.
More specifically, for Extender, you need to examine the GP windows that you have used with your Extender windows to make sure that there weren't any changes ...