Mateusz Konieczny
OSM dataset.

If you think about changesets you may esily check http://www.openstreetmap.org/user/Mateusz%20Konieczny/history#map=8/50.823/19.611 where http://www.openstreetmap.org/changeset/51965736#map=16/50.0526/19.9909&layers=N is latest