Sure, but like the description mentions, these are all the most up-to-date versions of every mod, i.e. Celestine is 2.6, as they were at the final release. They're not potentially archives of older files like a certain other site.
I'm also not going to work on or update any mods, so these really are the final, final versions. The most complete, most patched, most supported, etc. They're the only ones people should be playing.
If you're using something like MO2, it should also show the version during install because most of these come in a FOMOD. You can alternatively open the info.xml file inside the .zip to check.