First thing you should know - all updates are free during 6 months after your purchase. Within this period of time you may update your Store Manager as many times as you want. If you like you can prolong update period by purchasing Update Service for 6, 12 or 24 months - see product order page.
In order to find out whether you need Update Service please login at http://license.magneticone.com
type your email address in the first field and your password in second one:

If you do not know your password click "Forgotten your login details?" link and system will generate new password and email it to your address.
After logon you will see all your licenses. Find the one you want to check for updates and click "Downloads" link:

Next screen will show your license details as well as order update service link if you need one:

Just click required link to order update service.
Click here for information on how to order Update Service for shopping cart modules.