Of course you would also have to change all the places the birth year appears to be a four digit display.
SpyNavy
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
“A simple programing fix.”
I think you should market it, as if it were a Y2K thing. Good money to be made, perhaps.