Changelog for R-RcppCCTZ-0.2.3-3.fc26.x86_64.rpm :

* Fri May 18 2018 Tom Callaway - 0.2.3-3- rebuild for R 3.5.0
* Mon Mar 19 2018 Elliott Sales de Andrade - 0.2.3-2- Add missing Rcpp Requires
* Sat Mar 17 2018 Elliott Sales de Andrade - 0.2.3-1- initial package for Fedora