Changelog for R-chron-2.3.53-1.fc27.x86_64.rpm :

* Mon Sep 10 2018 Elliott Sales de Andrade - 2.3.53-1- Update to latest version
* Thu Jul 12 2018 Fedora Release Engineering - 2.3.52-3- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
* Tue May 29 2018 Elliott Sales de Andrade - 2.3.52-2- Rebuild for R 3.5.0
* Sun May 06 2018 Elliott Sales de Andrade - 2.3.52-1- initial package for Fedora