Changelog for python3-oslo-serialization-2.28.2-2.fc30.noarch.rpm :

* Fri Jul 26 2019 Fedora Release Engineering - 2.28.2-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
* Fri Mar 08 2019 RDO 2.28.2-1- Update to 2.28.2