Changelog for ghc-http2-devel-1.6.3-8.fc27.x86_64.rpm :

* Fri Oct 06 2017 Elliott Sales de Andrade - 1.6.3-8- Bump release to be newer than existing bundled version.
* Wed Oct 04 2017 Fedora Haskell SIG - 1.6.3-1- spec file generated by cabal-rpm-0.11.2