I updated my ipad with the first GM release. When I try to update to the official update itunes says I am up to date. How can I force an update or should I back up, do a restore then restore the backup to get my data back?
Kenal0
Take a look at this thread. It lists a couple of places where you could manually download the files and then manually update or restore the iOS to the latest.
Hold Option/Alt, then click Restore or Update on Mac, or Shift and Click on Windows to bring up the downloaded file.