Each FLEX-6000 Series radio comes from the factory with a license of the current major version of SmartSDR (ie v1, v2, v3). Subsequent point releases are included at no additional cost to the owner (ie v2.1, 2.2, 2.3). When the next major version is released it will be an optional paid upgrade. Should the user choose not to upgrade, their current version will continue to work in perpetuity.
A user may also skip versions should they choose. A user can upgrade from v1 to v3 with a single purchase.