Accessibility - Many chart types now label each point for screen readers and support keyboard navigation between points. A high-contrast palette can be switched on globally.
Themes and Palettes - Themes can now be loaded on demand with one call, and the built-in palettes can be applied by name.
Sticky-X Crosshair - Added a new crosshair mode for stock plots: the vertical line snaps to the nearest point while the horizontal line follows the cursor.
Improvements:
Dumbbell and Lollipop are now available as stock series.
Modules can now be loaded at run time, without a script tag.
Breaking changes:
Client-side export no longer falls back to the export server by default; enable the fallback option to restore it.
Candlestick series now apply hatch fill settings, which were ignored before.
The Bower package is no longer published; install from npm or the CDN.
修正
Charts drawn after the page body was cleared or replaced no longer have misplaced titles and labels.
A theme applied after a sparkline, treemap, sunburst, PERT or resource chart was created now applies to the charts created later.