When you purchase a TNI license, you get one year of free updates. The license is perpetual for the current version and all updates released during the year. After that, you may continue to use the last version available to you, or renew your license to get new updates (not mandatory). The cost of renewal for one year is 20% of the license price at the time of renewal. The support is free.
Checking and installing updates
Total Network Inventory is updated regularly. To make sure that you have the latest version, use the Help / Check for updates option from the main menu. Furthermore, the program automatically checks for updates on launch, but no more than once a day.
If an update is found, you'll see a list of changes in the new version. Click Start download, and Install update after the download is complete. The program will be closed and restarted after the update has been applied.