Worked around compatibility issue with jQuery 1.8 preview.
Made the tooltip follow the mouse position for shared tooltips with more than 1 series. This fixes problems with the tooltip being rendered close to the top series (or alternatively in another computed middle position) when the user is actually hovering another series. #424.
Added scrolling for the legend. Added legend.navigation options set.
Removed warnings on accessing layerX and layerY in Chrome.
Worked around issue with overlapping shadows on stacked columns. Shadow elements are now cut off.
Added time-aware xDateFormat for tooltip headers in datetime axes. Added tooltip.dateTimeLabelFormat option. #568.
Updated fix for #608 to work around JS error in Firefox.
Prevented trying to set extremes on empty axes when using selection zoom. #859. #906.
Don’t create multiple title nodes on subsequently setting attr title. #891.
Worked around issue with tooltips for stacked bar chart were not visible in IE7. #863.
Added smooth animation when adding multiple points. #860.
Changed zIndex on the range selector buttons in order for the tooltip to show above them. #852.
Prevented error on exporting in Prototype by setting default border radius for data labels to 0. #853.
Adding enctype to the exporting post to allow it to work in HTTPS in Firefox. #839.
Set xAxis.labels.overflow option to null by default in Highcharts, while ‘justify’ in Stock charts only. #841.
Allow the tooltip and the point hover state to survive a chart redraw. #349.
Worked on data labels for range series.
42 BUGFIXESEXPANDCOLLAPSE
Fixed issue with legend text not wrapping correctly to itemStyle.width option ion IE8. #1021.
Fixed issues with grouped data points not being destroyed after zooming on Y axis only. #622.
Fixed error message in Firefox when using jQuery UI datepicker against range selector inputs. #1020.
Fixed stuck tooltip, crosshairs and state marker after zooming in Highstock. #1003.
Fixed JS errors in Highstock when trying to pan a chart with no series. #1017.
Fixed JS error on quickly changing range selection in Highstock in column charts. #1004.
Fixed issue with size detection of rotated text in exported charts legacy IE. #997.
Fixed issue with original mouse event information not being passed over to legendItemClick handler. Added it to event.browserEvent. #4. #992.
Fixed issue with error #10 appearing on a chart with all null data if yAxis.min was set.
Fixed issue when colorByPoint was set to true, it started from the second item in the color array, whereas the first one was assigned to the whole series. #974.
Fixed JS error on setting categories with fewer items before the chart was redrawn. #970.
Fixed bug that removed all win.resize handlers. #982.
Fixed issue with X axis labels becoming left aligned instead of centered in IE8 on an axis with many labels. #983.
Fixed problem with unwanted chart border when printing in Chrome. #980.
Fixed issue in protofy branch that choked on setting extremes in Highstock.
Fixed issue with black background in data labels in legacy IE and MooTools adapter. #947.
Fixed excessive looping in setTooltipPoints in certain conditions involving hidden series. #945.
Fixed issue with stack columns’ position after redrawing chart. #936.
Fixed issue where a line with lineWidth of 0 wouldn’t show in hover mode. #940.
Fixed issue with lang.decimalPoint option not being applied to axis labels. #939.
Fixed float rounding error that caused extra tick position on logarithmic Y axes. #934.
Fixed issue with alignTicks not being respected after a chart redraw. #842.
Fixed JS error when adding points to a series before redraw. #927.
Fixed JS error message on running Axis.setTitle before axis is first rendered. #922.
Fixed NaN in attributes in export in Firefox 3.5. #912.
Fixed test size detection bug in bar charts with line-broken labels. #909. #882.
Fixed issues with setData for pies. #542.
Fixed error message on setSize without navigator in Highstock. #904.
Fixed Highstock error on accessing Navigator series.
Fixed unresponsive browser in IE8 Standards when exporting pie charts with data labels. #968.
Fixed issue with scrollbar without navigator didn’t respond to Chart.setSize. Partial fix for #955.
Fixed issue with xAxis label formats not landing on whole days when using local time. #950.
Fixed issue with tooltips not displaying over pie charts positioned outside plot area. #68. #956.
Fixed errors and crashes on resize. #905.
Fixed so stack totals are updated after point.update. #787.
Fixed issue with position of stack total labels. #506 and #516.
Fixed error on forced grouped series with no data. #885.
Fixed problem with test size detection when rendering a chart within a container with an inherited display property. #883.
Fixed problem with chart.click events firing after selection. #370.
Fixed issue with wrong tooltip to point binding on bar charts containing null values. #833.
Fixed problem with flags visible at the end of graph when zoomed off screen. #847.
Fixed problem with range selector buttons not becoming unselected when clicking a new button. This happened only when the actual range wasn’t changed because the buttons spanned a too wide range. #851.