Nah, his versioning corresponds to chapters. Not sure how many chapters he has in mind, but I wouldn't infer anything just from version numbering.
As far as a harem tag, I'm not sure what his ultimate goal is, but there is no basis for the tag as the game currently stands. Katie and Maria don't know about each other. (Poor MC when they find out! Phew! Not sure which one is going to kill him deader.
) Liv doesn't know about anybody, and I think only Alice knows about her. MC thinks Teagan is dead, and again only Alice knows she exists. In short, the conditions don't exist to apply the tag. There are hints of polygamy in the lore of the game though so there may be some hope for us harem enthusiasts.