Changelog for erlang-xmpp-1.4.9-2.fc34.x86_64.rpm :

* Tue Jan 26 2021 Fedora Release Engineering - 1.4.9-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
* Fri Jul 31 2020 Randy Barlow - 1.4.9-1- Update to 1.4.9 (#1807248).- https://github.com/processone/xmpp/blob/1.4.9/CHANGELOG.md