Genuine licenses purchased before 2014 remain valid for current versions, though they are often restricted to the core security features and exclude newer additions like the Malwarebytes VPN 2. Significant Changes in Version 3.8.3

This version began strictly enforcing the "1 PC per license" rule for lifetime keys. Many users who had previously used one key on multiple machines received "Usage Level Exceeded" alerts after updating to 3.8.3. Support Status: Official support for version 3.8.3 ended on May 4, 2020

. Users still on this version are encouraged to upgrade to the latest build (currently Version 5) to ensure they receive critical security updates. 3. Activation and Management