Dear all,
I find the OSM very useful, especially the topographical map of Germany.
At what intervals can can I download a new version?
Are there fixed intervals or is this random?
Maps are updated about once per hour.
See this → http://wiki.openstreetmap.org/wiki/FAQ#I_have_just_made_some_changes_to_the_map._How_do_I_get_to_see_my_changes.3F