iTunes U gains new annotation features, 1:1 video messaging and feedback, and media sharing between apps Posted on March 28, 2017 By admin iTunes U for iOS has been updated today with three new features. Annotation tools, 1:1 video feedback, and media sharing between apps are all included in version 3.5 released today: more… Filed under: Apple 9to5Mac Apple Tags:annotation, apps, between, features, feedback, gains, iTunes, media, messaging, sharing, Video