For players interested in a more detailed breakdown of the changes, here are the official patch notes:
To actually get the 1600p experience:
The rain started again, harder this time. A low, distant rumble—thunder, or something else—shook the building. zelda botw 160 update install
A single line of text appeared, not in the standard Hylian font, but in sharp, jagged letters: For players interested in a more detailed breakdown