How Do I Update S3 Media Maestro
Updating the plugin is very simple. It updates like all other plugins within the WordPress admin panel.
If you go into your plugin list, find S3 Media Maestro and click the Update Now URL. If you don't see an update URL, you will need to go into Settings→S3 Media Maestro, click on the Other Settings tab and ensure that your license information is up-to-date and activated. At that point, you should be able to update from the plugins area.