Skyfence discovery tool consists of the tool itself, and a repository containing Skyfence's premium research knowledge on hundreds of global cloud services, how to detect each service, what are the risks with their service to end users/enterprises, etc. This repository is called as Cloud Service Catalog and it's updated through Cloud Service Catalog server with new details and updates as and when there are changes to the repository automatically. There is no manual update, but automatic updates are by default configured during installation of the tool. Users have option to disable auto update if required, but this is not recommended.
To enable or disable Cloud Service Catalog updates, launch the tool, File -> Settings -> Check/Uncheck "Automatic app and risk catalog updates" -> Save
Version changes are detected automatically by Cloud discovery tool during start up and prompts users to update the catalog. Users have an option to install the update immediately or later on next prompt.