Changelog for ocaml-ppx-derivers-devel-1.2.1-4.fc31.i686.rpm :

* Thu Aug 01 2019 Richard W.M. Jones - 1.2.1-4- OCaml 4.08.1 (rc2) rebuild.
* Sat Jul 27 2019 Richard W.M. Jones - 1.2.1-3- Bump and rebuild.
* Thu Jul 25 2019 Fedora Release Engineering - 1.2.1-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
* Thu May 16 2019 Andy Li - 1.2.1-1- Initial RPM release.