It’s slightly revamped map. Some of the topography has changed. That means that mountain lines are slightly altered and the roads can also be a bit adjusted to the new topo. Locations should have stayed on the same coordinates, however.
About dirt roads and footpaths being highlighted as roads this is new. Maybe some people asked for clearer road visibility on the map.
That was one of the interesting and exciting parts of GZ.
When you walked somewhere and found a path, trail or road or even a structure, that wasn’t shown on the map…
I feel that many askers/requesters didn’t understand much about GZ and its magic. For them it’s just a shooter that has to be like many other shooters to become good…