If it were up to me, and I know it isn't, I would make it very simple. First 2 digits would be the year, and the remaining two digits would be the sequential production number. For example: new board this year, first BIOS is 1801. Any more released up to and including December 31 would be 1802, 1803, etc. First one next year is 1901, then 1902, etc...
:cool:
Davemon50