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Anyone know if there is any differences? Or does the update only change earlier versions.
 

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Is it basically accurate that for owners on M5s with the MkIII (non-DVD based system), the last two software upgrades do not add any improved functionality or performance?

For example, I downloaded NAV system software version 23 a bit back and inserted the cd-rom into the M5 CD-rom slot in the trunk. The system upload process began and then quickly stated that car software was current. Navigation software version remained SW 3-1/63 on the main menu/settings screen. I remeber folks posting that Navigation software version 23 may have contained updates for DVD-based Mark IV navigation system which were not applicable to CD-ROM based system in my car.

Thanks,

/Rich
 
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