The new feature named "Telemetry" from DevTest 10.2. In DevTest 10.2 and 10.3, if the user who wanted to use this feature needed to download the required files for this feature. However, this Telemety feature is included in DevTest 10.4 and needed to change the structure of the license. Then needed to regenerate a new license for DevTest 10.4. Then if the customer wants to upgrade the DevTest 10.4, then the customer needs to request the license for DevTest 10.4.