gajim 1.x and python-axolotl (required for omemo).
Before upgrading please make a backup of your current gajim profile:
tar -cJvf ~/mygajim.tar.xz ~/.config/gajim ~/.local/share/gajim
This is a companion discussion topic for the original entry at https://copr.fedorainfracloud.org/coprs/philfry/gajim/