I looked, and I don't see any changes to the existing ones, other than new packaging (but I'd only recognize changes in the two I feed - Holistic Chicken and the Eagle Pack Original).

http://www.eaglepack.com/Pages/EP_WhatsNew.html

*edit:
Someone informed me that they already had an LB Puppy food, so in all honesty I'm not sure what all is new. Maybe they just changed the formulas to the LB Puppy.