Changelog for cog-0.3.0-2.fc31.x86_64.rpm :

* Wed Jul 24 2019 Fedora Release Engineering - 0.3.0-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
* Sun Apr 21 2019 Chris King - 0.3.0-1- Innitial RPM package.