https://github.com/leeoniya/uPlot/compare/1.6.5...1.6.6

• ascDesc opt for stepped pathbuilder to control whether to draw ascenders/descenders at null/gap boundaries. now defaults to false. (https://github.com/grafana/grafana/issues/17838#issuecomment-789010128)
• selective filtering for synced cursors. e.g. can sync position without syncing zoom. (https://github.com/leeoniya/uPlot/issues/459)
• perf improvements, mostly for streaming cases.
• typings refinements
• fix for initially-defined min/max for scales (unborks the ranger demos)
• new timeline/discrete demo: https://leeoniya.github.io/uPlot/demos/timeline-discrete.html
• new sine-stream demo: https://leeoniya.github.io/uPlot/demos/sine-stream.html