I am unable to successfully do the above.  Here is the "BeginDate" features snippet of my code, written against the 15.2 version:

{
  columnKey: "BeginDate",
  defaultValue: new Date(asYear, asMonth, asDate),
  required: true,
  validation: true,
  editorType: "datepicker",
  editorOptions: {
    required: true,
    nullable: false,
    maxValue: asMaxDate,
    valueChanged: function (evt, ui) {
      var $endDate = $(elt).igGridUpdating("editorForKey", "EndDate");
      if ($endDate) {
        $($endDate.igEditorFilter("option", "provider").editor.element).data("igDatePicker").options.minValue = ui.newValue;
        $($endDate.igEditorFilter("option", "provider").editor.element).data("igDatePicker").options.minDate = ui.newValue;
      }
    }
  }
},

It seems to correctly set the minValue, as selecting a date prior to the min value results in the validation message popping up.  It does NOT however appear to set the minDate value correctly, as I am able to still select prior dates.

Also, of note, I see Intellisense for both "minValue" and "minDate" in Studio 2013 when editing...how can I make it so that the minDate value is dynamically set as needed?

Thanks!