When you install a later version of the same level of SURFCAM, you update SURFCAM. A new License File is not needed. A License File is sent to you when you renew your maintenance contract. That License File covers new versions that are released during the time of the contract.
When you install a higher level of SURFCAM, you upgrade SURFCAM and need a license file. When you upgrade a 3 Axis product to a 5 Axis product, for example, you require a new license file.
The License File has a time limit.
Surfware sends a timed License File with each new standard version of SURFCAM. The license is normally timed for 60 days or until a new license file that is not timed is created.
The license for an Educational version of SURFCAM is timed for one year. A new license file is required each year.
SURFCAM daily displays a warning message on your screen when a license is about to expire. Each day SURFCAM indicates the number of days that are left before the expiration date. Your dealer can give you the information about an extension.