ios - Swift 3 - device tokens are now being parsed as '32BYTES'

Question

I just updated from Xcode 7 to the 8 GM and amidst the Swift 3 compatibility issues I noticed that my device tokens have stopped working. They now only read '32BYTES'.

    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data)
{
    print(deviceToken) // Prints '32BYTES'
    print(String(data: deviceToken , encoding: .utf8)) // Prints nil
}

Before the update I was able to simply send the NSData to my server, but now I'm having a hard time actually parsing the token.

What am I missing here?

Edit: I just testing converting back to NSData and I'm seeing the expected results. So now I'm just confused about the new Data type.

    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data)
{
    print(deviceToken) // Prints '32BYTES'
    print(String(data: deviceToken , encoding: .utf8)) // Prints nil

    let d = NSData(data: deviceToken)
    print(d) // Prints my device token
}

Answer 1

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    let token = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
    print(token)
}