I'd think that new code and driving means we are modifying the bagged components and testing the changes.
I wouldn't put anything new onto the bagged portion of the robot, be it code or a mechanism.
Just a battery to drive with whatever code and mechanisms we bagged it with.
We were suppose to bag it in proper condition to demo it.
Not work on it later to make it demo'able.
Of course we prepared by bagging ours with drivable code, and I have sympathy for the programmers who aren't given any time on the robot before bagging...
It's the mechanical guys who hogged the robot before bagging that I don't have any sympathy for.
P.S.
I suppose bumpers that were already mounted pre-bagging and haven't been subsequently modified might be okay to drop on.
Just because they aren't baggable components.
But if they've never been mounted then I wouldn't put them on until the robot gets unbagged for official work.