Having had no response, I've taken the plunge and edited the table myself.
These 6 CC licenses are now uppercase and have 4.0 appended.
Creative Commons: BY-NC-ND 4.0
Creative Commons: BY-NC-SA 4.0
Creative Commons: BY-NC 4.0
Creative Commons: BY-ND 4.0
Creative Commons: BY-SA 4.0
Creative Common
It just occurred to me that no general mention had been made of this.
Caleb Maclennan has made the effort to resurrect the Ubuntu PPA for
Xiphos. As of Ubuntu 20.04, Ubuntu has stopped providing a package that
Xiphos' editor requires, hence it's not available from the usual
places. The PPA exist
