I just updated to 3.4.7932 P
I created a new library tonight, and I didn't realize until it had scanned about 11,000 tracks that it had copied the auto-organize settings from the previous library. At least 5,000 tracks got moved that shouldn't have been. (Thankfully the ones that were most critical to not lose were saved in locked playlists and I'll be able to get them back in place without too much headache.)
(On a side note, why does it switch tabs to my Music tab every time I change libraries?)