New features, performance improvement and bug fixes

• Add tooltip.position option - #833
• Add polyfill for phantomjs compatibility - #578 #838
• Add data.selection.draggable and fix scrolling issue - #215 #798
• Add onrendered callback - #880
• Add axis.y.inverted and axis.y2.inverted - #885 #534
• Remove data.ondragstart and data.ondragend callbacks - #215 #798
• Improve performance by avoiding updating arc targets when it's not needed - #172
• Improve performance by skip transition when transition.duration = 0 - #172
• Fix to free detached DOM tree when destory called - #866
• Fix padding.left when rotated category axis - #872
• Fix generateColor for arc chart - #874
• Fix d3 dependency to <=3.5.0 - #893
• Fix tooltip width to have auto - #832
• Fix data.labels.format - #854
• Fix tooltip position when arc and legend right - #847
• Fix axis.y.min/max when it's inverted - #885
• Fix x grid height with padding.top - #903
• Remove useless files in bower - #869

Bug fixes

• Fixed axis.y2.inner - #742
• Fixed y axis padding when data label shown - #799
• Fixed to assume axis.y.padding as pixels - #799
• Fixed to accept category name as x value for grid lines - #800
• Fixed interaction.enabled option for pie/donut/gauge chart - #801
• Fixed centered category axis - #804
• Fixed to accept unixtime string as timeseries date input - #805
• Fixed axis.y.center
• Fixed legend when revert called

Bug fixes

• Fix legend when revert called - #790
• Show 'outer' psitioned axis label even if legend is hidden - #788

Bug fixes

• Fix event rect when moving zoom extent - #786
• Fix legend state when revert called - #782

Bug fixes and performance improvement

• Improve performance when legend is hidden on init - #779
• Fixed rotated tick for subchart - #743
• Fixed hasType when empty data - #757
• Fixed tooltip when multiple xs on multiple charts - #758
• Fixed to use c3-legend-item-hidden class to set opacity of hidden legend item - #128
• Fixed category axis tick when load API called - #756
• Fixed tick text when flow API called - #772
• Fixed legend item width when data.names called - #775
• Fixed interface of toggle API - #776
• Fixed this context for mouse events

Bug fixes and performance improvement

New Features:

• Add legend.hide option - #731
• Add axis.y.inner and axis.y2.inner options - #742

Bug Fixes:

• Fix point.show not to hide scatter plot - #732
• Fix class suffix for back slash - #734
• Fix data.values API - #736
• Fix bug for zoom.rescale - #738
• Fix empty data when timeseries - #737

Performance Improvement:

• Refactor tick char size calculation - #730
• Cache legend item text rect - #730
• Cache tick text size - #730

Bug fixes

• Fix class suffix - #665
• Fix tick width for non-fit category axis - #726
• Improve performance for update event rects on timeseries - #553

Bug fixes

• Fix clip path for vertical axis - #718
• Fix tooltip when statcked chart with multiple xs - #719
• Fix grid filtering to add and remove - #720
• Fix rescale when grids API called - #721
• Fix class suffix for '=' - #722

Fix bug

• Fix class suffix - #717

New features, bug fixes and tests

Thank you very much for a lot of contributions and feedbacks. v0.4.0 has been released now and change list is like this:

New options and APIs:

• tooltip.show and tooltip.hide API - #467 #509
• grid.lines.front option - #462
• axis.y.default and axis.y2.default option - #442
• oninit option - #502
• axis.x.extent option instead of axis.x.default - #512
• zoom.onzoomstart and zoom.onzoomend options for callback
• data and data.shown and data.values API - #626
• axis.y.tick.values, axis.y.tick.count and remove axis.y.ticks - #560
• zoom API - #610
• zoom.rescale option to rescale y/y2 when zooming - #559
• axis.x.tick.multiline option to support multiple lines tick text - #139 #670
• data.axes API

Removed options and APIs:

• pie.sort and donut.sort options
• data.get and data.getAsTarget API
• axis.x.default

Minor changes and bug fixes:

• Modify zerobased if axis.y.min/max specified - #454
• Modify to fix the boundary of x domain when zooming - #505
• Modify legend to use class for focus
• Modify to separate clips for chart and grid - #502
• Modify to generate c3.min.css by grunt - #543
• Modify step chart interpolation - #566
• Modify to support unicode in class names - #665
• Modify bindto to accept d3.selection object - #715
• Fix tooltip when single data point
• Fix axis.x.min and axis.x.max when 0 - #457
• Fix padding when scatter chart - #457
• Fix svg height when gauge - #470
• Fix axis width when display:none on init - #468
• Fix data label on stacked line/area chart - #482
• Fix data label position when brushed - #485
• Fix onclick on step chart - #489
• Fix axis.x.tick.values for timeseries - #408
• Fix class properties for IE8
• Fix bar width on subchart when brush - #497
• Fix tick text rotation with negative value - #501
• Fix legend position to be centered - #515
• Fix grid and region when arc tyle - #518
• Fix event rect when flow called - #520
• Fix connect_null to connectNull - #516 #81
• Fix select for arc - #523
• Fix min/max for Gauge chart - #536
• Fix axis.x.tick.centered on category axis - #539
• Fix gauge when resize called - #546
• Fix only one data with custom x - #548
• Fix click on negative bar on rotated axis - #561
• Fix onclick/onmouseover on bar chart - #390
• Fix mouse events when point.show = false - #575
• Fix inset legend height without legend.inset.step - #326
• Fix multiple click on step chart - #608
• Fix millisec date parsing - #607
• Fix edge of step chart on category axis - #566
• Fix mouse event for multiple xs - #663
• Fix memory reak to watch insertion of chart - #668
• Fix legend background for inset - #326
• Fix to resize gauge value text automatically - #661