Changelog for kernel-preempt_rt4-4.9.47_rt37-lp150.1.21.x86_64.rpm :

* Mon Oct 16 2017 Rene.vanPaassenAATTgmail.com- update to kernel 4.9.47, rt37, no config changes from 4.9.9
* Thu Feb 16 2017 Rene.vanPaassenAATTgmail.com- update to kernel 4.9.9, rt6
* Thu Apr 21 2016 Rene.vanPaassenAATTgmail.com- need to add openssl-devel as build dependency