Changelog for qwt5-qt4-devel-5.2.2-28.fc23.i686.rpm :
Thu Jun 18 14:00:00 2015 Fedora Release Engineering - 5.2.2-28
- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild

Mon Apr 20 14:00:00 2015 Petr Pisar - 5.2.2-27
- Rebuild owing to C++ ABI change in GCC-5 (bug #1211226)

Sun Aug 17 14:00:00 2014 Fedora Release Engineering - 5.2.2-26
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild