Fixed #19861, series.searchPoint returned undefined after annotation redraw.
Fixed #19243, if the last point in the dataset was from a scatter series, it was invisible.
Fixed #20284, a combination of scatter, boost and ordinal axis threw error about processedXData.
Fixed #19715, chart update failed with dataGrouping and dataSorting.
Fixed #19743 and #19742, data grouping anchor positions weren’t working correctly if there was only one point. Also tooltip didn’t take into consideration the anchors.
Fixed #19851, the rangeSelector button state was not preserved after adding data to a series.
Fixed #19816, incorrect zooming with multiple series and ordinal axis.
Fixed #19922, the range selector All button is now auto-selected if the data range is smaller than the selected range.
Fixed #19926, click event wasn’t bound correctly for annotations with HTML labels.
Fixed #19793, trendline was not working for duplicate x values.
Fixed #19892, HeikinAshi and Hollow Candlestick were not working with certain dataGrouping periods.
HIGHCHARTS CORE v11.3.0 CHANGES
These core changes also apply to this moduleEXPANDCOLLAPSE
Implemented native handling of the time.timezone option, making the dependency on moment.js redundant.