Examples I’ve found:
– animationDuration is missing (not useful anyway?)
– there are several options (such as “groupLabelsFormatFunction”) that are not documented
– labelFormat is now labelsFormat
– labelPrecision is missing.
– labelRenderer is now labelsFormatFunction.
– markerFormat is now markersFormat
– markerRenderer is now markersFormatFunction
– markerPrecision is missing
and so on.
The missing “precision” options I think also qualify as bugs?