[ovirt-users] How to test incremental backup

Hello, based on this: https://ovirt.org/develop/release-management/features/storage/incremental... how can I made an initial test run? Which version of hypervisor? Am I forced to test with RHEL 7.6 beta right now, or are there ovirt-node-ng master images available with the features? Which version of oVirt to use to try? Thanks in advance for any insight to start with. Gianluca