Hi, yesterday we have merged a global change in the whole oVirt, from now on we require ansible-core >= 2.12 for oVirt functionality. It means that upcoming oVirt 4.5 will work only on OS version where ansible-core-2.12 is properly packages (for example CentOS Stream 8 and upcoming RHEL 8.6). All required package changes should be performed automatically for RPM installations. But developers will need to upgrade packages in their development environments manually, the most significant change is visible in for ovirt-engine. If you already have a working development environment setup, please perform following upgrade steps: 1. Update your packages, especially ovirt-release-master https://copr.fedorainfracloud.org/coprs/ovirt/ovirt-master-snapshot/ 2. Remove old ansible and ansible-runner-service-dev dnf remove ansible ansible-runner-service-dev 3. Install ansible-core and ansible-runner dnf install ansible-core ansible-runner ovirt-ansible-collection Detailed information how to set up an engine development environment can be found at https://github.com/oVirt/ovirt-engine/blob/master/README.adoc If anything doesn't work, please let us know. Thanks, Martin -- Martin Perina Manager, Software Engineering Red Hat Czech s.r.o.