Changelog for nspr-4.7.4-1.el4_7.1.x86_64.rpm :

* Wed Jun 24 2009 Elio Maldonado - 4.7.4-1.1- Update to NSPR 4.7.4- Resolves: #508026
* Wed Apr 16 2008 Kai Engert - 4.7.0.99.2-2- fix incorrect obsoletes/provides for -devel package
* Tue Apr 15 2008 Kai Engert - 4.7.0.99.2-1- Initial version for RHEL 4