In order to be aware in the latest news and to be able to download the latest versions of Store Manager you can subscribe to RSS.
Please go to the Store Manager's main page and find RSS button next to the latest version date. Press it and you'll see the MagneticOne Store Manager Versions History. Follow the hints to finish the subscription. See here for more details.
Also you can use pop-up notification in Store Manager application to download the most recent version.
Please read this article for more details.