You can continue using the product without interruption by following the procedure below that matches your version of the plug-in.
If you installed the product by file copy (versions 1.0 to 1.0.2[file version]).
Delete manually the previously installed plug-in, then, after installing the new version of Photoshop, re-install the plug-in using the latest version of the installer.
*Plug-ins installed by file copy cannot be uninstalled by using the uninstaller.
If you installed the product using the installer (Version 1.0.2[installer version] and up).
Uninstall the previously installed plug-in, then re-install it after installing the new version of Photoshop.
In both cases, it is necessary to input the license key once more after re-installing the plug-in.
At that time, if the machine code is different from what it was when you last installed the product, you will need to re-authorize it.
You can download the latest version of the installer from the user page.