Previously for UIButton instances, you were able to pass in UIControlState.Normal for setTitle or setImage. .Norma
The .Normal is removed(iOS 10 DP1), you can use the [] or UIControlState(rawValue: UInt(0)) to replace the .Normal, if you don't want to change codes all around(in case apple add it again or you don't like the []), you can just add once this code
extension UIControlState {
public static var Normal: UIControlState { return [] }
}
or
extension UIControlState {
public static var Normal: UIControlState { return UIControlState(rawValue: UInt(0)) }
}
then all the .Normal work like before.