If an upgrade is available, there will be two blue arrows in the shape of a circle next to the version number of the script.Click the arrows, and on the next page you will see information regarding the upgrade.

Finally this (along with the other legacy cgi in that dir) is also a huge deal because it causes PCI failures.

2] Zero Maintenance Application installers and upgraders are automatically downloaded to the server each night by a crontab process, reducing server maintenance to zero.

Non-application updates utilize three release branches -- edge, release, and stable -- which stagger changes and additions to limit the chance of service interruption for users.

In the top menu click on the wooden box to pull up a listing of installed scripts.

Then on the line for the script click on the yellow folder with the lock.