https://github.com/leeoniya/uPlot/compare/1.6.7...1.6.8

• new .setLegend({idx}) API and matching hook that fires on legend updates. (#414)
• new legend.isolate mode (Ctrl+click). (#404)
• opts.pxAlign and series.pxAlign can now to define the pixel rounding increment to reduce micro-shifting in streaming cases. (#241)
• axis.values can now be a static array
• optimized handling of clientRect invalidation during resize and scrolling. also fixes bug that failed to invalidate clientRect of plots when scrolling was of an ancestor container (not window).
• fix for float math precision issues in ms date handling. (#472)
• 50% fewer lineTo() calls when only 2 datapoints per pixel
• data smoothing demo: https://leeoniya.github.io/uPlot/demos/data-smoothing.html
• new histogram demo below latency heatmaps: https://leeoniya.github.io/uPlot/demos/latency-heatmap.html
• timeline demo improvements