For reasons that escape me now, I had deprived medium cavalry of the ability to shoot and move, it has been restored.
Light troops were intended to be able to self order a single move. That somehow got deleted. The idea is primarily that it will allow light infantry and skirmishers to move and fight effectively in broken and difficult terrain but also that fiddling with skirmishers shouldn't overly distract a general from the real fight. They still need orders to rally or double move.
and it was intended that a 1" fallback from melee could be followed up, that was the whole point.
The are a few other minor things but the updated version is now loaded.