WUM is a simple command line tool that connects to the WSO2 Update service, determines which updates are new and relevant, and downloads them. You can run WUM once to update the software to the latest set of released updates, or schedule it to run periodically so you maintain the latest set of updates continuously. You can even get the latest version of the product through WUM.
Note that WUM will not itself automatically push into production – you have full control over when and how you want such pushes to occur.