I just canceled my amazon preorder and bought the preorder from playstation store to avoid the whole code registration fiasco that is going on. I was in phase 4 so I already have that client installed. When I completed my purchase another client started to download. I have heard that the phase 4 client is all we need. Does anyone have a link or anything with official word of what we need. I will download the new one if I have to but if I don't need to it would save some time. I just want to make sure I have everything set for early access. Thanks.
There is no official information about this as far as I know (and I have looked at the dev posts every day for the past months) but I can tell you this. I did the same as you, I cancelled my gamestop preorder and purchased last week on PSN. The game downloaded. Then after that I got the phase 4 invite, I entered the code and it downloaded the same thing a second time. I let if finish, and it just overwrote the first game I had downloaded.
It looks like they're the same exact thing. As it is for PC.