Changelog for R-gtools-3.8.1-1.fc28.i686.rpm :

* Sat Jun 30 2018 Elliott Sales de Andrade - 3.8.1-1- Update to latest version
* Thu May 17 2018 Tom Callaway - 3.5.0-2- rebuild for R 3.5.0
* Tue Mar 13 2018 Elliott Sales de Andrade 3.5.0-1- initial package for Fedora