The permanent license is generally valid for an unlimited period and never expires. Unless the software is no longer compatible with the operating system - the license itself does not expire, but under these circumstances there is still the possibility that the licensed software version no longer works without an upgrade.
To avoid this, exocad offers the option of booking an upgrade contract for a permanent license. With the upgrade contract, laboratories regularly receive new updates. The upgrade contract can be terminated at any time without additional costs. The exocad software will then continue to be used as of the date of termination. An update of the add-on modules is no longer possible after the termination and the support from the reseller is also omitted at this point.