Changelog for jaxb-stax-ex-1.8.3-2.fc34.noarch.rpm :

* Tue Jan 26 2021 Fedora Release Engineering - 1.8.3-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
* Tue Aug 11 2020 Fabio Valentini - 1.8.3-1- Initial package renamed from stax-ex.