The 20 august, we have send discount coupon to ALL existing customer to give them the opportunity to upgrade to a lower price.
The discount expired the 31 august.
Perhaps you have not seen this email with the discount coupon.
The update is free and the upgrade is billable.
The update correspond to bug fixes and in your specific case, you can update JMS 1.1.x to the latest version that is JMS 1.1.24.
See faq for the procedure to get the latest version.
www.jms2win.com/faq#sec-122
When there is an upgrade like JMS 1.1.x to JMS 1.2.x, we send a discount coupon to existing customers to allow them upgrade with a lower price.
As you seems have not saw the email with our discount for the upgrade, we will send you a new discount code.