/stand/i386/boot0/boot0.S and other boot files under i386

Hello, list

Ive been looking at boots.S and found some things that could use
improvement. I've changed a few things around here and there, but so far
have not broken compatibility in terms of appearance and interaction.

How would the list feel about breaking compatibility? Would you all find it
acceptable if I was able to add features like booting from a logical
partition and adding error checking capabilities for the MBR (and thus the
ability to discern a GPT from MBR drive)?

Last time there were any major changes seems to have been 20 years ago,
what does the list think?