Today’s update to Terrain has insane speed optimizations using Mapnik’s new geometry simplifications. The terrain vector tiles are now anywhere from 8 to 80% leaner. This directly translates to faster and smoother maps on mobile, and it looks the same.
Leaner data, and you can’t tell the difference
| Tile X/Y/Z | Before (Node Mapnik 3.0.x) | After (Node Mapnik 3.3.0) | % Reduction |
|---|---|---|---|
| 3031/6446/14 |  vector.pbf - 259KB |  vector.pbf - 49KB | 81% |
| 3035/6421/14 |  vector.pbf - 99KB |  vector.pbf - 31KB | 69% |
| 6106/3444/13 |  vector.pbf - 78KB |  vector.pbf - 68KB | 13% |
| 2137/1452/12 |  vector.pbf - 58KB |  vector.pbf - 52KB | 10% |
| 331/721/11 |  vector.pbf - 133KB |  vector.pbf - 121KB | 9% |
Thanks to the power of vector tiles all maps using Mapbox Terrain are already benefiting from this update. There is nothing to do except enjoy the faster maps! Thank you Mapnik!