Steve if you up your smargo in to the pc and run the update tool for version 1.3 and click update it will tell you on the bottom bar what version you have then you get the option to update or cancel.
My motto is if it ain't broken don't try and fix it!
In other words if its working well and ok now maybe worth leaving it well alone, rather then getting yourself in to a position were you could knacker it up.
But that would take the fun out of this Hobby.
Have fun M8
Jono