TreeSize perpetual licenses include 12 months of free maintenance (updates and support). Once this expires, you can continue using your current version indefinitely, but you will need to renew your maintenance to install newer updates.
Guide to TreeSize License Key Updates and Maintenance Updating your TreeSize license key is a straightforward process whether you are upgrading from a trial, moving to a new version, or switching between editions like Personal and Professional. Maintaining an active license ensures you have access to the latest disk management features and security updates. How to Update or Change Your License Key treesize license key upd