This should be always latest build of postgresql.
check specfiles on github
It's PostgreSQL beta, so there is no difference between this and installation of stable release. I would not advise use it for production.
The following unofficial repositories are provided as-is by owner of this project. Contact the owner directly for bugs or issues (IE: not bugzilla).
|Epel for CentOS 7||ppc64le (0)*, x86_64 (0)*||Epel 7 (0 downloads)|
|Fedora 26||i386 (0)*, ppc64le (0)*, x86_64 (0)*||Fedora 26 (7 downloads)|
|Fedora 27||i386 (0)*, ppc64le (0)*, x86_64 (0)*||Fedora 27 (0 downloads)|
|Fedora rawhide||i386 (0)*, ppc64le (0)*, x86_64 (0)*||Fedora rawhide (2 downloads)|
* Total number of packages downloaded in the last seven days.