Don't think the older software, at least from April 2015 is better than newer software. At least for me it wasn't. When I bought my Maxisys Mini it came with April 2015 software and the Chrysler and GM software were not that good. For GM it would not work with older cars, like 96-99 trucks. The Chrysler one was also acting up, it would have trouble reading codes in older cars as well. I updated both of them and now they work pretty good. I do wonder thou, how it would suck if I would have not been able to update the tool. Would I just be left with a broken, worthless tool?