The Minion client will scan and ask to update addons to versions that are older than the currently installed. For example my Archy addon is at version 18.104.22.168, the client attempts to "update" to 22.214.171.124.
The likely cause is that for some reason WoWInterface is not furnished with the latest versions of certain addons for some reason.
The previous is the case for 7 of my Addons. It's not an issue that renders the client unusable, it just reduces the usefulness greatly.