When I updated my iPhone to iOS 9 yesterday, I stumbled upon the screen in notes asking if I wanted to "upgrade" notes. At the time I was worried that I would lose my notes so I declined it. After reading more about it it sounds like the notes will not be lost. However, now I am unable to find a place to upgrade the notes after the fact. Does anybody know how to? Also, is there anything to know about why you wouldn't want to upgrade the notes?