Please see the article at http://software.intel.com/en-us/articles/find-my-serial-number/.
Our licensing model is based on subscription, not version. If you are interested in installing a newer version of your product, and your subscription period is active, your existing serial number and/or license will work.
To download the latest version, follow these steps
Each license is associated with a serial number.
With the exception of Intel® Cluster Tools, Intel® Software Products are licensed to a named user rather than to a single computer. For Intel® Cluster Tools, the Single Developer license enables individuals to inexpensively obtain a license. The Cluster System license enables organizations and universities to cost-effectively purchase licenses for a large number of developers. There are two important characteristics of Cluster System licenses. First, the license is tied to a specific cluster, so if you have two clusters, you will need to purchase two separate Cluster System licenses.