I just picked up 2 bags and they were still 30/20.
I also made the mistake of picking up the 26/16 PPP the other day at PetSmart, when I got home I noticed and looked it up on the website to see if something had changed other than the packaging. Now saw there were 3 formulas...I took my bag back and got the 30/20. The ingredients are a little different so look carefully. Bags are still the same size 37.5lbs. I think that the 26/16 may be the old Adult Chicken and Rice (non-shredded) that they brought back a few years ago when a lot of people complained about the shredded blend. (I hated the Shredded blend) all my dogs lost weight on it. I switched to the Performance after they made the initial switch. Another thing I did notice is that the calories are higher for the 26/16 than they are for the 30/20? I thought that was odd?
I did the same thing. I just grabbed a black and purple bag off the shelf at Petsmart and did not notice the difference until I poured the food out of the bag.