I and many in the USA have recieved great support from our rep Eddie Williams. He has supplied the updates and also explained what they were for, in a telephone conversation.
I have the latest installed with no problems.
If you have no problems.........keep playing. If you in the USA develope a problem, look to some of us that have an official USA update and we would be glad to assist. First call Eddie Williams at Panasonic USA.
At one time I belonged to a new computer group in our community and we adopted a slogan.....""Member Helping Member"". I think this fits this forum very well.
Fran in Florida