READY.
'NEW' ROM 911210 (added: 2020/12/25) By chance I found an old floppy disc image with a (not quite complete) image of the (probably last) C65 ROM with the version number 911210.
Fortunately, after some tinkering, I was able to reconstruct it and thus make it usable for the community (as 911210.bin).
The full story can be read in this thread in the MEGA65 forum:
FINDING AND RECONSTRUCTING A C65 ROM ----------------------------------------------------------------------------------------
READY.