Hello Gurus, Newbie here. I purchased a plain Phantom from Amazon on their gold box sale for $379. There's nothing in the description that says the the Phantom is the latest one with the upgraded/improved bits. Is there any way to know based on the serial number or anything? I don't know whether Amazon had a load of these sitting around all year and discounted them or what. I've looked at the outside of the box but there's nothing there to indicate any updates... Thanks for your help!