There is leaked new devmenu out there. (if you know were to look)
but sadly, it only works on the pre-release of v6.0.0 firmware
Noone that I know of has leaked a patched one that works on final 6.0.0 firmware or the 6.0.1 or the latest 6.10
Does pre-release 6.0.0 have teh same efuses burned as real 6.0.0?