Changelog for czmq-4.2.1-1.fc33.x86_64.rpm :

* Mon Feb 01 2021 Denis Arnaud - 4.2.1-1- Upstream upgrade (to 4.2.1)
* Sat Aug 01 2020 Fedora Release Engineering - 4.2.0-4- Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
* Mon Jul 27 2020 Fedora Release Engineering - 4.2.0-3- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
* Tue Jan 28 2020 Fedora Release Engineering - 4.2.0-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
* Thu Oct 31 2019 Denis Arnaud - 4.2.0-1- Merged with EPEL 8 version: upgrade to 4.2.0
* Wed Jul 24 2019 Fedora Release Engineering - 4.1.1-3- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild