The header will probably be the same, eg  --avalon10-- but beyond that, no idea. The previous generations all have slight differences in how values are formatted and permissible ranges.

Can't say I've tried futzing around with it but I'll ask Kano if he can get some information from his contacts at Canaan. I will say that you cannot hurt the miners. If a code(s) is wrong or out of range it will just be ignored. Push them too hard and again they largely self-protect themselves by throttling down to safer levels before again trying to push towards what you have set.