Are we required to use the new control system?

[Arhowk]

Don't plan on using an old cRIO, considering every team has atleast one in their KOP I don't see them updating cRIO software, not to mention the new fms system with whatever they're using

Old crops can be put on practice bots though, they're far from unusable. If your concern is programming than write a custom language to binary compiler and create binary readers on both devices that read the same code. That was our initial system back in comp season but we've moved on to bigger recently.