Changelog for optimizer-1.2.1-2.fc31.x86_64.rpm :

* Thu Jul 25 2019 Fedora Release Engineering - 1.2.1-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
* Tue Apr 23 2019 Artem Polishchuk - 1.2.1-1- Update to 1.2.1
* Tue Apr 23 2019 Artem Polishchuk - 1.2.0-1- Update to 1.2.0- Enabled fallback theme which is better suits Adwaita GTK theme
* Tue Apr 16 2019 Adam Williamson - 1.1.0-3- Rebuild with Meson fix for #1699099
* Wed Mar 13 2019 Artem Polishchuk - 1.1.0-2- Initial Package