Well, I compared the two ingredient lists and found that Sodium Laureth Sulfate is now the second ingredient in the list. The previous version had Disodium Cocoamphodipropionate as the second ingredient. Also, Hydrolyzed Keratin seems to have replaced Hydrolyzed Vegetable Protein.
It's interesting that the ingredients changed so much, but the pH still remained a 5.5. So they must have balanced the ingredients to ensure proper relaxer neutralization.
Overall, I think that this new formula works great. So change is good sometimes. I will keep you posted if my opinion changes.