Changelog for kmod-igb-5.2.5-1.el7.elrepo.x86_64.rpm :

* Sun Aug 03 2014 Alan Bartlett - 5.2.5-1- Updated to version 5.2.5
* Fri Jun 13 2014 Alan Bartlett - 5.1.2-1- Initial el7 build of the kmod package.