Leaflet/Leaflet v1.6.0 on GitHub

GeoJSON.resetStyle - allow invocation without an argument (#6663 by joukewitteveen)
Add new markersInheritOptions option to L.GeoJSON (#6866 by ghybs)

Use passive event listeners (#6694 by danielkorte)
Add oldLatLng coordinates to L.CircleMarker move event (#6719 by errnesto)
Add tests (#6839, #6841 by ghybs)
Add test case to ensure scientific notation is formatted correctly (#6877 by desean1625)

Fix performance issue with L.Util.formatNum (#6668 by cherniavskii)
Respect className option in SVGOverlay and VideoOverlay (#6679 by IvanSanchez)
Cancel the canvas mousehover throttle on mouseout (#6749 by IvanSanchez)
Check for style being passed in L.Path.setStyle (#6728 by TheRealTorreySmith)
Fix dblclick event when both Pointer Events and Touch Events are available (#6855 by filcab)
Properly unbind animation proxy events when removing map (#6867 by ghybs)
Fix race condition in Marker when icon is not present (#6794 by BenTalagan)