Changelog for R-bookdown-0.21-2.fc34.noarch.rpm :

* Mon Jan 25 2021 Fedora Release Engineering - 0.21-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
* Tue Oct 13 2020 Elliott Sales de Andrade - 0.21-1- Update to latest version (#1887703)
* Fri Jun 26 2020 Elliott Sales de Andrade - 0.20-1- initial package for Fedora