Hi @phylcom,
If you want to upgrade from 5.0.1 to 5.0.3
its now called Luoshuangs-GPULightmass-50x-vs2022
I have updated the post above
's GPULightmass - Unreal Engine / Rendering - Unreal Engine Forums
I personally would recommend you re-install the latest version now at 5.0.3 to another directory and rebuild as there is so much that has changed over 4000 patches.
When I get a new version I back up the old version to a hard disk and download the new version to NVRAM/SSD.