Aqua CLIC it! installation system | EGGER Flooring

The new EGGER Aqua CLIC it! installation system protects the floor against water penetration for 24 hours. Edge swell protection, a waterproof surface and the wood-based core board Quellstop provide secure protection.

[valtseshevsky]

Hello. Is there a difference between old CLIC it! locks and this Aqua CLIC it! locks?
I have an option of buying either leftovers of old EPL189 laminate from EGGER PRO 2021+ collection with good discount or ordering new EL2416 from the new 25+ collection.
It's the same print.
The only difference is that one has Aqua Click It locks and other have usual Click it locks. Local vendor states that there are no difference, that it's pure marketing.
Looking at this video I cannot understand what is the difference as well. Could you describe in details the difference between those two types of locks?