Changelog for ghc-happstack-server-7.5.1.3-1.4.x86_64.rpm :

* Fri Jan 04 2019 psimonsAATTsuse.com- Update happstack-server to version 7.5.1.3. Upstream does not provide a change log file.
* Tue Jul 10 2018 psimonsAATTsuse.com- Add happstack-server at version 7.5.1.1.