It makes no changes at all to the display, it will just update the firmware and ensure your blue tooth is the best it can be. The connection will have less feedback, echo and be more stable. It also supports more devices and generally brings it up to date. The update is a year or two old now but it is the most recent available for our system.
Glad you have it all up to date.... its just a nice feeling to be running all the correct software.
I don't think I have any time to attend anything until perhaps the Arundel meet, so if you don't mind posting that would be great.... it hopefully will cost just a few pence.....
i'll pm you my address.