This patch has the following changes:
2 new bonus dungeons. These dungeons can be accessed by talking to Sue & Lauren respectively after certain points in the game. One of these dungeons is designed for max LV characters - have fun!
Various bug fixes (sorry, I don't remember all the specifics since it's been a while. I do know that a major bug with replaying battles has been fixed though).
The game also now takes up drastically less space.