[+] Supported draw custom series on Baidu Map (bmap). See example 1 and example 2。
[+] Supported show parent labels in treemap. See example. See #5869 and #5579.
[+] Supported specifying mouse cursor style by: series-line.cursor, series-bar.cursor, series-pie.cursor, series-scatter.cursor, series-effectScatter.cursor, series-graph.cursor, series-pictorialBar.cursor.
[+] Support both negative and positive bounding data specified on series-pictorialBar.symbolBoundingData. See #5793.
[+] Supported label.formatterin treemap. See #5757.
[+] Supported label.normal.textStyle.align and label.normal.textStyle.basealign in timeline. See #5960.
[^] Fixed that tooltip did not work when large scatter was zoomed. See#5837.
[^] Fixed that parameter position did not work when trigger showTip action. See #5874.
[^] Fixed that sometimes the sum of the percent value is less than 100% slightly in pie, which was caused by precision problem. See #5850.
[^] Fixed only the last markPoint or markLine was displayed when series.name was the same. See #5712.
[^] Fixed that barBorderRadius did not work in horizontal bar. See #5943.
[^] Fixed the zoom point error when applying dataZoom-inside on Y axis. See #5278.
[^] Fixed sometimes radar did not display normally. See #5986.
[Recovery Build]
[+] Published custom series, which enables user to customize render logic and make new types of chart. See samples。
[+] Supported polar bar chart. See sample1, sample2, sample3。
[+] Supported encode, which enable user to specify which dimensions in data are mapped to which axis of coordinate system. Or which dimensions will be displayed in tooltip or label. [Break Change]: The default name of the third dimension in cartesian2d is changed from 'z' to 'value'. If 'z' is used in visualMap.dimension, please modify it to 'value' or 2.
[+] Supported dimensions, which enables that specifying names and types for each dimensions in data. Name can be displayed in tooltip.
[+] Supported dataZoom.minSpan and dataZoom.maxSpan. See #2843.
[+] Supported dataZoom.moveOnMouseMove and dataZoom.zoomOnMouseWheel, which enables that triggering dataZoom only by mouse wheel while holding 'ctrl'/'alt'/'shift'. Moreover, supported preventDefaultMouseMove, See #5769.
[+] Supported using image in dataZoom.handleIcon setting.
[^] Fixed boundary problems on world map.
[^] Fixed that minInterval did not work when min was set. See #4838.
[^] Fixed problems caused by default properties on Object. See #5576.
[^] Fixed that error was thrown when setOption while legend selection changed, which was caused graphic. See #5783.
[^] Fixed parallelAxis.axisLabel.interval supporting. See #5694.
[^] Enhanced interaction of dataZoom.
[^] Fixed the problem about minAngle on rose chart. See #5617.
[^] Fixed the problem when tooltip updating.
clipPath support for liquidfill.label is set as insideTop.[^] Fixed the problem when both left right width top bottom height are set. See #5440.
[^] Enhanced the effect of boundaryGap when only one data existed. See #4417.
[^] Made the sorting of treemap stable when values were the same.
[^] Fixed that roam and brush conflicted when components overlaped.
[^] Enlarged area of parallel axis name when it rotates.
[^] Enabled toolbox clear button to be able to clear brush box of parallelAxis.
[^] Improved the performance of zrender up to 50%.
[+] Supported useUTC, which enables display axisLabel and tooltip in local time or UTC. Related default setttings are modified: axisLabel and tooltip display local time by default, and data recognize time string as local time if timezone not specified. See the time part in series.data. Fixed the problem that when axis.type is 'time' tick is determined by UTC and can not align with daytime. Fixed #5396 and #5393。
[+] Supported axisLabel.showMinLabel and axisLabel.showMaxLabel.
[+] Supported funnel.sort, which enables sorting funnel by index or customized function.
[^] Fixed float error of axisTick. See #5041。
[^] Fixed that axisTick did not display when value was too small. See #5386.
[^] Fixed when tooltip.trigger was 'axis', dispatchAction showTip did not work. See #5423.
[^] Fixed that visualMap disabled itemStyle of map. See #5388.
[^] Fixed that tooltip.trigger did not support 'none'. See #5400。
[^] Fixed that data.lineStyle.color of parallel did not work. See #5363.
Recovery Build
[+] Published calendar coordinate system. See examples.
[+] Published echarts statistics tools echarts-stat
[+] Enhanced axis pointer See examples: link, mobile (touch device) 1, mobile (touch device) 2, analysis, multiple Y axes, multiple X axes. Supported and enhanced #5040, #5039, #5102, #5262, #4905, #4921, #5091.
[+] Enhanced method echarts.util.parseDate, which have supported parsing different formats of data expression to UTC time. See time in series.data
[^] Enhanced processing of geoJSON.
[^] Fixed that toolbox.feature.dataZoom can not control multiple x axes. See #4896.
[^] Fixed the default extent of category axis in dataZoom. See #5226.
[^] Fixed function name of "disConnect". See #5208.
[^] Remove incorrect warning specifying width,height when initialize echart. See #4569.
[^] Fixed that tooltip in gauge do not support percentage. See #4347 and #4332.
[^] Fixed the behavior when pointer color is 'auto' in gauge. See #5109.
[^] Fixed the problem when series-gauge.pointer.show is false. See #4944.
Fixed the initialization of series-treemap.data is incorrect in one case.
Enhanced the behavior of brush on category axis.
[^] Fixed that visualMap is abnormal when some item of visualMap-piecewise.categories is numberic string. See #4960.
[+] Published pictorialBar chart：pictorialBar。See example。
[+] Published themeRiver chart：themeRiver。See example。
[+] A specified geo coordinate system has been able to be used in map series. (In the past map series could only creat an inner exclusive geo coodinate system). Thus, map series can be used to control color of a geo component. Moreover, a geo coordinate system can be shared among map series and other series, like scatter series. See series-map.geoIndex.
[+] Added focusNodeAdjacency action, which enables trigger adjacent highlight of graph through API.
[+] Added series-pie.animationType, which enables more animation effects.
[+] Callback function have been supported in animationDuration, which enables different animation duration of data items.
[+] min and max have been supported in category axis.
[+] category axis has been changed to show all categories by default, in spite of whether there is data in categories. In the past, categories in the end that has no data will not be displayed.
[+] When using singleAxis, series.data has supported one-dimension array, like [11, 23, 44].
[+] dataZoom has supported singleAxis.
[+] Exposed throttle util method: chart.util.throttle.
[+] candlestick has supported barWidth, barMinWidth and barMaxWidth. See #4783.
[+] lines chart has supported symbol, symbolSize.
[+] Added support for show end text and data label at the same time in visualMap-piecewise. See visualMap-piecewise.showLabel, and See #4845.
[+] When using visualMap to control a series, it has supported that some data items escape from the control by visualMap, but use its series visual settings (color, symbol, ...). See the paragraph of Configure mapping in visualMap.
[^] Enhanced the effect of grid (cartesian) when on data displayed.
[^] Added parameter dataIndex in showTip event.
[^] Fixed vulnerability about XSS in tooltip. See #4769.
[^] Fixed that some attributes did not work in series-graph.edgeLabel. See #4555.
[^] Fixed tick render problem when min max is stirng in series-gauge. See #4617.
[^] Fixed series-gauge.pointer.show problem. See #4618.
[^] Fixed series-radar render error in a case that no data exists.
[^] Fixed markArea.label.normal.show problem. See #4723.
[^] Enhanced the process when data is equals or less then zero in log axis. See #4743 and #3161.
[+] Add graphic in option, enable graphic configuration in option. See examples: http://echarts.baidu.com/gallery/editor.html?c=line-y-category, http://echarts.baidu.com/gallery/editor.html?c=line-draggable and http://echarts.baidu.com/gallery/editor.html?c=map-province.
[+] Add visualMin and visualMax, and enhance capability of visual mapping in treemap. See #2509.
[+] Add tooltip.confine, which can confine tooltip within contianer of echarts instance. It helps a lot in small screen, or in the situation that outer dom is set to be overflow:hidden.
[^] Fix that erroneously forbiden default pan behavior in touch device. See #4393.
[^] Fix calculation error of containPixel in geo / graph. See #4405.
[^] Fix symbol mapping in visualMap.
[^] Enable realtime upating of label in dataZoom. See #4434.
[^] Fix that can not save as image in MS Edge browser. See #2451 and #3586.
[^] Fix format problem for 'time' axis in tooltip. See #4398.
[^] Fix tooltip may not show bug when first series have null data.
[^] Fix grid.containLabel not works for large fontSize. See #3805.
[^] Fix echarts.extendSeriesModel error. See #4397.
[^] Fix render error when clockwise is false and minAngle is used in pie. See #4414.
[^] Fix erroneously rendering dot in tooltip when using gradient color. See #3994.
【+】add in radar chart, see https://ecomfe.github.io/echarts-doc/public/en/option.html#series-radar
[^] position optimization of average, minimum and maximum value starting point and finishing point. Fix #2762, #2688.
[^] fix the only one configuration for ''none'' bug in markLine symbol. See #2733
[^]optimization of vertically centered multiple yext lines.
[^] emphasis configuration item of label in data item as pie chart is normal value by dafualt.
[^] when introdcued on need, line chart, pie chart and scatter chart introduce grid component by dafault to avoid problems in#2758.
[^] fix floating point precision bug in dataZoom component. Fix #2757
[^] unselected legend chart is grey. See #2615
[^] fix dataZoom position failure bug in media query of 3.1.1. Fix #2710
[^] fix firefox's incapability of triggering wheel events bug in 3.1.1 中. Fix #2730
[^] IE8 optimization.
[^] change to webpack to build code.
【+】provide theme download,see details in http://echarts.baidu.com/download-theme.html
[^] fix the bug that update data can not be shown insetOption` after emptying line chart data in v3.1.1.
[^] fix possiblity of reporting id duplicates error in setOption(chart.getOption()) . Fix #2635
[^] allow to customize toolbox toobar. See details in toolbox.feature
[^] scale optimization of 'time' type axis in large-span time range.
[^] fix no show of label formatter return to 0.Fix #2659
[^] fix markPoint label display error in charts with vertical axis as category axis.Fix #2641
[^] optimize dataZoom, fix dynamic data update problem in dataZoom chart. Fix #2667
[^] percentage is 0 rather than NaN when all pie chart data are zero. Fix #2690
[^] title alignment optimization.
[^] support display of tooltip when charts update. Fix #2478
[^] dashboard splitLine.length, axisTick.length supports percentage.
[^] optimization of line animation feature.
[^] optimization of category axis feature of large data amount .
[^] fix error reporting bug of markPoint and markLine in IE8.
[^] fix error reporting bug under 'use strict'model. Fix #2643
【+】newly add npm channel to obtain echarts, see details in webpack + echarts tutorial
[^] fix abnormal indynamic markPoint and markLine . Fix #2522
[^] fix parameter error in axis interval callback. Fix #2470
[^] fix failure in customizing lineStyle of every edge in graph. Fix #2558
[^] saveAsImage supports IE9+ and FireFox in toolbox.
[^] support cylindrical corner configuration. #2550
[^] fix error in dataZoom location configuration item. Fix #2619
[^] fix possible id duplicate error when fix setOption for too many times.Fix #2452
[^] candlestick and boxplot chart support markPoint and markLine.Fix #2566
[^] fix reset error in toolbox after use setOption in non-merge model.Fix #2596
[^] scatter chart and markPoint support configurating label formatter in emphasis. Fix #2596
[^] Treemap supports roam configuration item.
[^] axis of time type support time data of string format.
[^] fix switch problem in Line and area charts. Fix #2625
[^] location optimization of multiple series of bar chart markPoint. Fix #2623
[^] fix error reporting in init when theme is string and has dataZoom component. Fix #2619
[^] legend and toolbox support setting height and width and wrap automatically through width and height.Fix #2621
[^] optimization of line chart smooth, add insmoothMonotone configuration item, see details in option.html#series-line.smoothMonotone, Fix #2612
[^] fix incapability to trigger mouse events on computers with touch screen like Surface and so on. Fix #2569
[^] fix highlight failture in scatter chart.
[^] optimize tooltip linkage. Fix #2445
[^] dataZoom of inside type support zoomLock.
[^] add error alert of non-exist map type.
[^] optimize legend switch animation of line chart.
[^] fix problem about Legends cannot be added dynamically. Fix #2457
[^] fix timeline's incapability to configutate show.
[^] fix 0 data shown as undefined in tooltip .Fix #2463
[^] fix incorrect display of dataZoom zoom graphic. Fix #2462
[^] fix the problem of axis min max as string, PR #2481
[^] fix average value, maximum value and minimum vaule label and the incapability to show correct value of tooltip. Fix #2393
[^] fix drawing incorrectness when bar chart has bigger width than height, Fix #2343
[^] fix the function problem of legend show configuration item. Fix #2371
[^] map type can choose data attribute.
[^] fix average mark and mark calculation errors, Fix #2367
[^] animation optimization when line chart change from '-' no data to data.
[^] mouse wheel zoom direction change to ommonly used one.
[^] data area zoom tool in toolbar support specified axis, see detail intoolbox document
[^] fix no data error on timeline, scale change from [-1, 1] to [0, 1] when data value axis has no data.
[^] fix drawing error of axis splitArea.
[^] fix multiple chart example linkage problem. Fix #2391
[^] fix the problem that color on legend cannot display correctly with pie chart color being callback function. Fix #2372
[^] fix mouse hover errors when pie chart data is 0.
[^] when all pie chart data are 0, secotrs changed to uniform distribution.
[^] fix errors in background seeting under IE 8.
[^] fix incorrect release event in tooltip component dispose.