If you happened to attempt to multi-task while playing Warcraft today, you may have noticed the Blizzard Background Downloader running, downloading a file with an unusually generic name of "wow-patch." So was some kind of patch released today? Well... no. However, there's an official post explaining exactly what is happening here. Before the background downloader was implemented, on patch day millions of people would be attempting to grab the patch at the same time - and my experience with this has been entirely negative. With the background downloader, whenever you log on to play, you'll be checking for updated files and start downloading them (very slowly - as to not interrupt your play-time). So as Blizzard finalizes parts of the next patch, the downloader is already grabbing them, which means that come patch day, you should already have most of the patch, making getting patched up quick and painless. I guess we'll wait and see how well it works in the end...!