Changelog for giac-1.2.2-3.1.x86_64.rpm :
Fri Jul 15 14:00:00 2016 avvissuAATTyandex.by
- Fix postun scriptlet failed:

* use install_info_delete instead of info_del

Sat Jan 2 13:00:00 2016 avvissuAATTyandex.ru
- Update to 1.2.2:

* improved Groebner basis engine

Fri Jun 5 14:00:00 2015 avvissuAATTyandex.ru
- Initial release