I haven't looked at the firmware-version of my Repman in a loooong time.
It was still running 2.0.8 while the current firmware is 4.1.1 .
They only listed the changes since 3.x and even that takes multiple pages
(with one line per improvement).
I'm not sure I like the high travel speeds when moving from homing-location
to warmup-location. That could be dangerous. But during a print that does
come in handy.