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Polish roles/osm-vector-maps/README.md

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#### See also the [IIAB 7.2 Release Notes](https://github.com/iiab/iiab/wiki/IIAB-7.2-Release-Notes).
1. There's a new **Install IIAB Maps** page (http://box/osm-vector-maps/installer/) with [instructions](https://github.com/iiab/iiab/wiki/IIAB-Maps#how-do-i-install-map-packs-and-satellite-photo-regions-on-iiab-72-), separate from IIAB's Admin Console.
1. There's a new **Install IIAB Maps** page (http://box/osm-vector-maps/installer/) with [instructions](https://github.com/iiab/iiab/wiki/IIAB-Maps#how-do-i-install-map-packs-and-satellite-photo-regions-on-iiab-72-), separate from IIAB's Admin Console:
1. This [very visual page](https://user-images.githubusercontent.com/2458907/94740848-46c4eb00-0341-11eb-93ea-e3e4758dce48.png) facilitates selecting/downloading/installing of Map Pack(s) for your favorite "continent(s)". (SEE 2. BELOW)
2. And then likewise for Hi-Res Satellite Photo Regions serving your local communities. (SEE 3. BELOW)
2. **Map Packs** are no longer bundle both data and program in a .zip file. All Map Packs are now a collection of 3 .mbtiles files.
1. The main focus of a Map Pack remains Hi-Res Vector Map data from OpenStreetMap, for your selected "continent" — but Lo-Res vector map tiles (1.8GB .mbtiles) and Lo-Res satellite photos (932MB .mbtiles) are also included for the entire planet. Read more at: https://github.com/iiab/iiab/wiki/IIAB-Maps
2. **Map Packs** no longer bundle both data and program in a .zip file. All Map Packs are really now just a collection of 3 .mbtiles files:
1. The main focus of a Map Pack remains Hi-Res Vector Map data from OpenStreetMap, for your selected "continent" — but Lo-Res vector map tiles (1.74GB .mbtiles) and Lo-Res satellite photos (932MB .mbtiles) are also included for the entire planet. Read more at: https://github.com/iiab/iiab/wiki/IIAB-Maps
2. Map Packs' OSM vector tile data (from 2017) was updated to data from [September 2019](https://archive.org/details/osm-vector-mbtiles).
3. The world view (planetwide OSM vector maps included with all Map Packs) increased zoom levels from 0-9 to 0-10 (1.8GB osm-planet_z0-z10_2019.mbtiles) so that city search is successful more of the time.
3. The world view (planetwide OSM vector maps included with all Map Packs) increased zoom levels from 0-9 to 0-10 (1.74GB osm-planet_z0-z10_2019.mbtiles) so that city search is successful more of the time.
4. Multiple Map Packs can be downloaded/installed (one "continent" at a time). However this can waste disk space with duplicate data (and "continent" bounding boxes have been designed so that this is rarely necessary!)
3. **Hi-Res Satellite Photos** can be downloaded/installed for any 100 x 100 km, 300 x 300 km, or 1000 x 1000 km square region (around any map point that you click!)