We have made several improvements in the Google Maps plugin including adding support for displaying the traffic layer.

1702 [google_maps_flutter]Marker drag event

1767 [google_maps_flutter] Adds support for displaying the traffic layer

1784 [google_maps_flutter] Allow (de-)serialization of CameraPosition

1933 [google_maps_flutter] Avoid unnecessary redraws

2053 [google_maps_flutter] Fix analyzer failures relating to prefer_const_constructors

2065 [google_maps_flutter] Prefer const constructors.

2076 [google_maps_flutter] Clone cached elements in GoogleMap

2108 [google_maps_flutter] Add Projection methods to google_maps

2113 [google_maps_flutter] Avoid AbstractMethod crash