I haven't seen a definitive answer on this. If someone has a promo code for 1.1 of an app, and 1.2 is released before the expiration date of their code... Does the promo code still work for the new version? I'm asking because I still have a bunch of promo codes for my app and an update should be released any day now... so will my old codes become invalid, even before the 4 weeks, in which case I need to unload them asap? Thanks!