There is an Errata sheet in your Downloads at the top with the other free stuff. It is what you would use if you just had the book, and will likely be what you need to check what was changed.
Is there any "official" errata dated since 8/13/09? The only errata I can find is from that date and only contains a couple of pages of minor changes. I was hoping for something that had more rewording of some areas that have sparked controversy.