score:2
According to USCBP:
If any information in your application has changed or needs to be updated after you have certified your application and paid the processing fee, you must wait until you attend your scheduled interview to update the information with the Global Enrollment Center. Please be sure to bring supporting documentation with you to your interview about the requested changes....
....This may also include address changes and other pertinent information that would be included on your Global Entry Application.
What I am reading is that you will need to bring documentation supporting the change.
However, in my own experience for Global Entry, the background check happens before you're invited for an interview. I was approved on the spot for Global Entry right after my interview. Therefore, in my opinion if you don't tell them that you changed addresses, and then change it your GOES account after you get your card, that's an option. But again, that's just my opinion - never hurts to be cautious with these things. Do keep in mind that your card will be mailed to the address you have on your application.