Changelog for qwt-devel-6.1.3-11.fc31.i686.rpm :

* Fri Jul 26 2019 Fedora Release Engineering - 6.1.3-11- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
* Sat Feb 02 2019 Fedora Release Engineering - 6.1.3-10- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild