To update the module please get the new installation package and reupload all the files, overwriting existing ones. Also please check the latest installation instructions to make sure all steps are completed and you can take advantage of any new features available.
According to MagneticOne policy there is 6-month free update available along with the purchase.
To update the product please go to your MagneticOne store account. There you can find all the orders you've made from this account and in order details you can see the download link of the latest version of the module.
If the link is unavailable it means that your order was placed more than 6 months ago and free update is not available. In this case you can order the update at a very reasonable price at any time.