This content was released on Jul 27 2015. The official support period is 6-months from this date.
Strap yourself in for a whirlwind tour of some new features for developers in watchOS 2 – from new interface objects such as WKInterfacePicker, to changes in animation and how the phone and watch communicate.
This is a companion discussion topic for the original entry at https://www.kodeco.com/3703-what-s-new-in-watchos-2