Different industry, but I (a long time ago) worked in a place that built scientific instruments.

> "One of every board revision we've ever produced"

The, ah, "special" people we had running engineering didn't even put in the work to be capable of the software querying the board rev. We had to play games like running certain motors past a position limit and seeing if there were limit switches there (or not) to guesstimate board revs.

I'm guessing stories like this are common.