Changelog for subnetcalc-debuginfo-2.4.2-1.el7.x86_64.rpm :
Fri Jul 10 14:00:00 2015 Christopher Meng - 2.4.2-1
- Update to 2.4.2

Tue Jul 29 14:00:00 2014 Christopher Meng - 2.3.1-1
- Update to 2.3.1

Sat Mar 15 13:00:00 2014 Christopher Meng - 2.2.1-1
- Update to 2.2.1

Tue Nov 12 13:00:00 2013 Christopher Meng - 2.2.0-1
- Initial Package.