Updated models of 10bII+, 12 C, 12C Plat & 17bII+.

[Jean-Baptiste Boric]

(03-27-2022 06:42 PM)Massimo Gnerucci Wrote:  We won't have anymore an idea of when they were manufactured so, if an error find its way in a non upgradeable ROM, you won't be able to track those calculators and when fixed ones are available.
All in all I think it's a bad idea.

If one just needs to identify what kind of revision a particular calculator belongs to, only a revision identifier updated for each new change is really necessary. Date/time codes can also identify when a calculator was manufactured, generally with a precision of a week or a month.

(Not advocating for or against serial numbers here, just pointing out facts)