View attachment 2172710
You open to where you see all the files including folders and game launcher etc.. you highlight and copy all these from the Update only, move to old game version folder, click on empty field in the old game's folder, where you see all the exact same elements, click paste and accept overwrite of existing files, then your good to go.
Edit note: Important you don't copy the data into any folder of the main content folder.. copy into an empty space so it over writes the same things..
Hope it's easy enough to understand from the one screenshot, instead of making a 3 picture guide of exact same looking info.
Remember for own sake to rename the now updated game folder to match the correct game version.
Also remember you can only update only on one version at a time, so if you miss an update you would have to either ask if any has the missing version or download a full game version.
It's not rocket scientist difficult, quite easy logic, but had to be mentioned before the pages get flooded with questions about it