Saves (only admin map saves unfortunately) on the current app are fully compatible with the new app (though saves from the new app are not for the old app).
Strongly recommend the new app as it has in general less bugs, e.g. with saves, and will be the one maintained and updated with new functionalities
Warning: Does not work well on mobile devices
Play the timeline: menubar above timeline list
Change map layers: top left layers button on map
Edit legend labels: double click label text
Warning: opening a save, loading new basemap wipes clean current map
The left most three new map options load in a new base map and wipes the current one clean
New Map from Files require user to upload their own geojson basemaptom geojson basemap
Use single fill for filling single province, use lasso fill to fill or delete multiple provinces
Currently chosen colour will have a solid black border and be protruding
Colour of currently hovered over region will have a dashed black border and be protruding
Colours in the toolbar will have a double border if they are on the map already
Choose a colour: either from colour bar above map or from legend
Colour region: choose a colour and a date, then simply click the region