Yes. Earlier versions of DxO OpticsPro as well as DxO PhotoLab can be uninstalled once the installation of DxO PhotoLab 4 has been completed.
To uninstall a previous version of DxO OpticsPro or DxO PhotoLab, go to “Apps & features” and select the version you want to remove, than select “Uninstall”.
To uninstall a previous version of DxO OpticsPro or DxO PhotoLab, go to your “Applications” folder, select the icon of the program you’d like to uninstall and drag it to the trash.
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