One of the great weekness against other DAWs in Renoise is the granularity. It’s very difficult to work “in-between” steps. Say you want a very fast pitch arbitrary pitch bend. That’s currently impossible, at most you can do a linear ramp between two steps.
My suggestion is for Renoise to be able to select x1, x2, x3… xN resolution in automation tracks. That way compatibility can be maintained while having new functionalities.