• [Feature] [line] Add triggerLineEvent. Support trigger mouse event on polyline and polygon area. #15847 (susiwen8)
• [Feature] [i18n] Add Russian translation. #15867 (finkrer)
• [Feature] [i18n] Add Polish translation. #15891 (CaelumNigre)
• [Fix] [line] fix smoothed line with duplicate points failed to draw #15942 (pissang)
• [Fix] [line] Fix visual gradient is wrong when coords are between two stops. #15938 (pissang)
• [Fix] [calendar] Fix i18n doesn't work in the calendar coordinate system #15935 (plainheart)
• [Fix] [bar] Fix label value animation is not accurate in the bar racing case. #15916 (Ovilia)
• [Fix] [axis] fix charts render abnormally when yAxis.max is set to be a value less than the min value of the series data. #15878 (plainheart)
• [Fix] [tooltip] Fix boolean value display. #15869 (Ovilia)
• [Fix] [types] Add undefined to the return type of getInstanceByDom and getInstanceById #15913 (plainheart)