The 4.960 software was released around July of this year. You can check what version of software your unit is running by going to the Views menu and setting the Self Test View to “Visible”. Than scroll through the available Views until you come to a new View that says “System Status” at the top. The software version is listed in about the middle of the screen. You can than go back and set the Self Test View to “Hidden” so that you will not see it again when you scroll through the available Views.