I program for Channel F and a few versions ago (Currently checking out MAME 0.231 (LLP64) ) a bunch of registers were removed from the debugger in the left part of the window.
R16-R63 are gone from the list which makes things harder if you want to look for bugs.

While doing so $hexnumber was replaced with H'hexnumber', I thought $ or possibly 0x was the go-to way of writing hexadecimal numbers?
I have documents from the 70's that uses H'xxx' notation, as well as B'xxxxxxx' for binary and O'xx' for octal numbers - I thought it was long gone...?

Who has the power to change it back?