No I don't think there's any advantage in updating the firmware (apart from a few gimmicks), in fact on v1.06 you can access the 'hidden menu' which turns off the record lights completely (see other threads here). I still have v.1.06 and it all works just fine. There are several people here who have regretted updating firmware, so my advice would be to stay put.
Paul
Hello,
Please, could you tell me where is available v.1.06 which turns off the record lights completely?
Yours sincerely.
Robert