SLIDO-4.4 is an Esri ArcGIS version 10.7.1 file geodatabase. The geodatabase contains two feature datasets (a group of datasets within the geodatabase) containing six feature classes total and five individual feature classes. SLIDO-4.4 includes 55,736 landslide polygons in the Deposits feature class dataset and 14,985 historic landslide points locations compiled from 365 studies. The original studies vary widely in scale, scope and focus which is reflected in the wide range of accuracy, detail, and completeness with which landslides are mapped. In the future, we propose a continuous update of SLIDO. These updates should take place: 1) each time DOGAMI publishes a new GIS dataset that contains landslide inventory or susceptibility data or 2) at the end of each winter season, a common time for landslide occurrences in Oregon, which will include recent historic landslide point data. In order to keep track of the updates, we will use a primary release number such as Release 4.0 along with a decimal number identifying the update such as 4.1.