Changelog for mozjs31-31.2.0-4.fc23.x86_64.rpm :
Wed Jun 17 14:00:00 2015 Fedora Release Engineering - 31.2.0-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild

Sat May 2 14:00:00 2015 Kalev Lember - 31.2.0-3
- Rebuilt for GCC 5 C++11 ABI change

Sun Mar 15 13:00:00 2015 pcpa - 31.2.0-2
- Update licenses
- Remove INSTALL from devel package

Sat Mar 14 13:00:00 2015 pcpa - 31.2.0-1
- Initial mozjs31 spec.