My new 2008 RX DVD Navigation disk is version .06.1. Is this the latest?

Thanks

 

They come out with a new one once a year, I have an RX400H that I got in mid Oct of 06, it has version .06.1.

 

Thanks, guess it is still the latest one!

 

should be up to date

 

I asked my dealer about getting the latest NAV DVD and he said they come out once a year and that he recommended updating once every three years. He also mentioned to always buy the updates in January.

Thoughts?