The Noble archives are in a changing state and have been for a while with the time_t transition. Now they’re in a similar—if not worse—state with a security bug whose impact is not fully understood. Personally, I’d avoid using any Noble installs right now. When everything is well known and the archive is in a manageable state, and ISOs start building again, then I would make a new install and carry on like normal.
The one thing I’d absolutely advise: don’t use Noble in production right now.