[new icons] OrgChart.icon.undo and OrgChart.icon.redo
[new method] undo - Undo data operations like adding/removing nodes. Set undoRedoStorageName option before calling this method.
[new method] redo - Redo data operations like adding/removing nodes. Set undoRedoStorageName option before calling this method.
[new method] clearRedo() - Clears all Redo stack steps.
[new method] clearUndo() - Clears all Undo stack steps.
[new method] undoStepsCount() - Returns the number of Undo stack steps.
[new method] redoStepsCount() - Returns the number of Redo stack steps
[new interface] undoRedoStorageName - Set the session storage name to use undo/redo functionallity.
[new option] undoRedoUI
If you have something similar to
chart.on('adding', function(){ });
Replace it with:
chart.onUpdated(function(){ });