versions

So I finally jumped and got a 536HP due to the NXDN update (Take note, Uniden!) after being a Whistler/GRE person for years and years. Serial number is 7800xxxx. I know that there have bene some problems with early on 3800xxxx units; and I've seen 4800xxxx and 5800xxxx units in the wild. Some...

Do the version numbers that service mode spits out have any correlation to the programming software version that was used on the radio last?