Thank you. I remember researching this before I think (I was using .pkgmeta on my git repo with a workflow to auto-deploy to wowinterface/curse if I remember correctly) but I wasn't sure if there was a manual way of doing it. That's a shame but I don't mind taking the time to set that up.
I only need 1 changelog because I try to make projects work for both versions. Usually, it's just the TOC Interface number that changes.
EDIT: I got it working! Thanks again