The following synthetic example shows the license-related portion of an Avanti log header for a current Version 4 key that has no expiration date:
License key used at startup: s/n 4242r7 (v.4) 25 units
Licensed to Example Customer
Valid for releases up to 2027-9-30
•s/n 4242r7 (v.4)
-Serial number 4242, generation 7, in the supported Version 4 registry-key format.
•25 units
-The optional-feature capacity carried by the key.
•Valid for releases up to 2027-9-30
-The key can run an Avanti release when the release date encoded in that software is on or before this support date. A maintenance patch may retain the encoded release date of the version it patches. This line does not itself state that a support agreement is currently active.
A permanent key omits the Days remaining at startup: line and permits perpetual use of each release eligible under its support date, subject to the license agreement.