Changelog for xtensor-devel-0.21.2-2.fc33.x86_64.rpm :

* Wed Jul 29 2020 Fedora Release Engineering - 0.21.2-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
* Thu Jan 16 2020 sgueltonAATTredhat.com - 0.21.2-1- Upstream version bump
* Tue Sep 03 2019 sgueltonAATTredhat.com - 0.20.8-1- Initial package