This is still Swift 2, correct?

Answer 1

Yes, this app teaches Swift 2.
You have to pay attention to several changes in Swift 3, e. g. it's "func f(myVar: inout Int)" instead of "func f(inout myVar: Int)" in Swift 3.

Answer 2

Yes, It is still on swift 2.

Answer 3

I just finished Code Swift and trying to learn more about Swift 3. This app is not yet representing the changes in Swift 3, is it correct?