The weekend hasn’t arrived quite yet, as Apple has quietly pushed out a revised build of iOS 5.1.1 for the GSM iPhone 4 (AT&T). The update (Build 9B208) is available now only for GSM iPhone 4 owners who have not yet updated to the 5.1.1. If you have a GSM iPhone 4 on 5.1.1 already, you won’t be able to grab this second (seemingly identical) update.
Apple has re-released iOS builds in the past, but this time around there seems to be no known bug fixes or changes. It’s also interesting that the update is only for GSM iPhone 4 owners. Some sort of changes must be included, but Apple has provided no documentation. There’s a chance that updated builds for other devices could pop up, so we’ll keep you posted.