IIRC only US owners can download the patch.
Ah ok thank you, so the patch is already available, not day one after all

Btw I'm going to try both the options, better shadows will definetly add a lot to the graphics especially considering that the game has a lot of vegetation casting shadows.
60 fps....I'd like to see how much it enhances the gameplay (if at all besides the sense of extra fluidity, considering the game was born as a 30fps experience).
Btw I think that the high res shadows could have been achievable at 60fps as well with the right development time and optimizations.
Clearly this game wasn't that much of a priority within Naughty Dog, it's just a way to let people play the game on PS4 (especially those who didn't own a PS3 before) in an improved package.