4 and 5 actually.
1 and 2 are factory, FYI.
I have a week 28, but I received mine on 29 July. What's even more weird is that mine came with 4.0. I would've figured it would've come with 4.01 by now.
I've just got a week 30 and it comes with 4.0.1.
Anybody want me to check anything?
22 here, and no issues whatsoever