I started a new translation in the English Wikipedia and I saw the warning: "Your translation cannot be published because publishing is only allowed to more experienced editors on this wiki."
This happened even though I have over 17,000 edits and belong to the Administrators group.
The likely reason is that I don't explicitly belong to the Extended confirmed group. Users are auto-promoted to this group at 500 edits, and I reached 500 edits long before it was created.