Please see the 0.6.7 release notes for more!

• Add pointer interaction for pointing at data.
• Add tip mark for annotations and revealing details-on-demand when pointing.
• Add crosshair mark for showing position values when pointing.
• Add tip mark option for deriving a tip mark with pointer interaction.
• Add -channel descending shorthand syntax for the sort mark option (e.g., sort y by -x).
• Add shorthand for time interval multiples such as 3 months or 10 years.
• Add imageFilter mark option for applying CSS image filters.
• Add marker options to the rule and tick marks.
• Add labelArrow option to control axis label directional arrows (↑, →, ↓, ←).
• Add support for the interval scale option to the group, bin, and stack transforms.
• Add support for index-aware reducers to the normalize and window transforms.
• Add support for index-aware map methods to the map transform.
• Add identity position defaults to the mapX and mapY transforms.
• Add support for abstract (scaled) values when specifying a frame or hexgrid’s options.
• Add render mark option for render transforms.
• Change the default tickFormat for ordinal scales with yearly intervals.
• Change the label scale option to add an implicit directional arrow by default.
• Change the auto mark to set tip to true.
• Change the default color scale type to categorical when given a categorical scheme.
• Fix automatic opt-out of the opacity scale for the opacity channel.
• Fix crash when an invalid CSS color string is specified for a frame’s fill or stroke.
• Fix position defaults for the rectX, rectY, barX, and barY marks.
• Fix facet filtering and anchors when facet domains contain non-primitive values.
• Fix auto mark to chose correctly between variants of rect, line, and area marks.
• Fix z-order of marks across facets.
• Fix z-order of facet axes.