Changelog for lib64qwt5-5.2.2-1pclos2014.x86_64.rpm :
Wed Oct 29 13:00:00 2014 bb 5.2.2-1pclos2014
- needed to build ruby-qt4

Fri Sep 9 14:00:00 2011 Texstar 5.2.1-1pclos2011
- 5.2.1