Using Reallusion Hub's Updates feature.

Simply download and install Reallusion Hub (Installer Hub), then follow the instructions on how to use: -

https://www.reallusion.com/hub/

For example: -

Other Entry Points: -

- Click on the "Help" main menu found on the upper-right corner of the program, followed by the "Check for Update" option, in which you will be prompted to the Reallusion Hub and update your program.

- Click on the "Check for Update" button in the welcome dialog box of the legacy program and you will prompted to the Reallusion Hub.