QGIS
Why QGIS 3?
Why QGIS 3?
Free, multiplatform, extensible.
Better rendering
Notable Missing Features from QGIS 2
Notable Missing Features from QGIS 2
No built-in OSM download tool
No built-in OSM download tool
It was a very good feature to get you started by adding maps data to your project.
Some extension still only for QGIS 2
Some extension still only for QGIS 2
GENERAL CAVEATS
GENERAL CAVEATS
Convert your linear data first
Convert your linear data first
Large GeoJSON, CSV, KML should not be used directly. You need to convert to indexed datatypes first (i.e. GPKG, SHP) for better performance. This will be visible when you try to perform points clustering.
JSON compatibility issue
JSON compatibility issue
Formatting