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@Aqaba Shark you are likely referring to http://garmin.openstreetmap.nl/ instead of openstreetmap.org
The update for garmin.openstreetmap.nl seems to happen about monthly on that site.
If you want a Garmin suitable map using possibly more up to data osm data try one of these https://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/Download
The Bbbike site updates about weekly https://extract.bbbike.org/ and the data is up to date to 2019-Oct-10