Scooped off the battlelog forums
THE BETA. DICE has learned quite a lot from it, stressed tested their servers, looked at some gameplay tweaks, and so on. Most of the issues in the beta have been before the game ships, however, a game usually has to be completed several weeks before ship date, in order to be certified by console manufacturers, and have sufficient time to be manufactured. This is usually referred to as “going gold”. But that doesn’t mean developers stop working on their products.
According to DICE’s Patrick Liu, Battlefield 3 will “probably” have a day-one patch, which will include feedback from the beta. Liu also pointed out that the beta is a real beta, and not a glorified demo as “betas” have become over the past few years. DICE has gotten a lot of feedback on Battlefield 3 gameplay, tested the servers and has received feedback on Battlelog as well (which has been updated during the beta).