Changes are documented here: http://www.jpct.net/changes.html
In addition to these API-modifications, the distribution has changed too. The terrain-example has been removed and a new, more complex example (the car-example) has been added. The jars of the examples are no longer containing the whole API...just their own classes. This reduces download size slightly.
The fps-example makes use of the new KeyMapper-class in util now.
Have fun!
I've just uploaded a silent update that fixes two small bugs in Interact2D and various lookAt()-related stuff.