Changelog for raptor-1.4.21-20.fc21.x86_64.rpm :
Sun Aug 17 14:00:00 2014 Fedora Release Engineering - 1.4.21-20
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild

Sun Jun 8 14:00:00 2014 Fedora Release Engineering - 1.4.21-19
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild