Karl,
I'm currently in the Philippines on business/vacation, which is why I did not respond right away.
Yes there are differences. However, we did not track these in detail, because we recommend to our students not to worry about the changes, but instead just focus on the new formulas. So I cannot really tell you what exactly the changes are. If I remember correctly, then PMI made some changes to the earned value formulas, and some EV formulas are no longer mentioned in the PMBOK Guide. But that's just from memory.
My recommendation is the same as always: Do not use any materials based on the previous PMBOK Guide if you are planning to pass the current PMP exam, because the information is very likely outdated and may cause you to fail the exam. It's as simple as that.