It looks like you have modeline_generation disabled in mame.ini. Make sure to regenerate mame.ini from the binary after such a big version update.
PD: forget what I said, it's definitely enabled. I just don't get why all modes appear as read-only.
PD: OK I spotted the problem, the driver isn't recognized as patched, so you're either not using CRT Emudriver or you need to reinstall it.