[ovirt-users] Is PostgreSQL 9.5 required now as of oVirt 4.2?

Hi All, I have a setup of oVirt on 4.1 that has been working brilliantly for over a year, serving the production workloads at my dayjob without complaint. Originally, I had set it up with a custom PostgreSQL version, 9.6, from the PGDG repositories, since the suggested 9.2 was already quite old, and it allowed me to keep consistent versions of PostgreSQL across all the infrastructure I have. Now that I am trying to upgrade to oVirt 4.2, when I run engine-setup per the directions in the release notes documentation, engine-setup insists on PostgreSQL 9.5 from Software Collections, comparing the postgresql versions and then aborting. I don't see a way to tell it that I have a different running version of PostgreSQL that's greater than 9.5 already. Does this mean that no other versions than 9.5 are supported, and I need to downgrade and use the Software Collections version exclusively? Or is there a custom setting that I am missing that will enable me to continue using the 9.6 install I already have. Thank you for your time. Best, Lacey