If I ever want to revert backward or downgrade to previous versions of EmEditor (which I cannot imagine why I would want to do that), I think there is a support section of the web site that offers previous versions of EmEditor.
Hmmm . . . I just looked at https://support.emeditor.com/en/account/downloads, and it does not go back as far as some of these backups do. So maybe it is not as easy to downgrade one full version number.
Eric