There is PostgreSQL 10.3 already. I have Ubuntu 17.10 (artful) and there is not a pgdg repository for it. There is PostgreSQL 10.3 in 16.04 LTS (xenial) pgdg repository, but such packages can't be installed on 17.10 (artful) Ubuntu. And there is zesty-pgdg (for 17.04 Ubuntu), works fine for me (for 17.10 Ubuntu), but there are only old PostgreSQL 10+189.pgdg17.04+1. Can you rebuid packages for the zesty or create for the artful with modern 10.3 PostgreSQL?