All purchases include a free maintenance subscription for one year. The maintenance subscription covers tech support and version upgrade. So you will be able to receive tech support and new versions/builds made within one year after your purchase for free. After one year, you can renew your subscription at a discounted price. Please follow these steps to renew your subscription:

1. Log into your account;
2. Click "My Orders" from the account drop down menu at the top right corner, this will bring you to the orders page;
3. Click your order to expand it;
4. Click "Renew Subscriptions";

You can then follow the screen to complete the order.