Version 4, Build 10 is what I have got. I can truly say that I am very happy with Super Charts so anyone looking for a good bit of software could do a lot worse than buying this (provided it is Build 10 - or can be added to so as to reach that version- and provided further that the price is right). Unfortunately they stopped selling Super Chart presumably so as to sell the much dearer (much too dear) Trade Station software. Casey, you ARE selling the original disks as well as the manuals aren't you ? Good luck Casey. Cheers, freealways