Changelog for R-utf8-1.1.4-1.fc28.x86_64.rpm :

* Wed May 30 2018 Elliott Sales de Andrade - 1.1.4-1- Update to latest version
* Thu May 17 2018 Tom Callaway - 1.1.3-2- rebuild for R 3.5.0
* Tue Mar 27 2018 Elliott Sales de Andrade - 1.1.3-1- initial package for Fedora