Hi,

The instructions told me to upload modules folder to my forum from the 2.3.7 version (BTW: the instructions also mentioned some modules' subfolders specifically, which is misleading in this case if I already upload the whole modules folder).

Yes, you are right. This happens, if you skip some updates. I will take a closer look to the update script. However, I recommend to replace the sub-folder in modules instead of replacing some files in modules/subfolder/ because we never change/replace a single file of a module. We always update the complete external module.

Are these files no longer needed? Should I remove them?

We don't develop the modules itself. Of course, the file-tree can be changed by the developer group of the module.

/Micha