Hi, we have just merged to master a patch [1], which introduces database version and cluster level 4.1. This change has following implications: 1. All database upgrade scripts which are going to be merged to master need to have 04_01 prefix (even those that are going to be later back-ported to ovirt-engine-4.0 branch) 2. Default cluster level is 4.1, so you will need a recent VDSM build (VDSM patch introducing 4.1 cluster level support [2] was merged yesterday) Thanks Martin Perina [1] https://gerrit.ovirt.org/59231 [2] https://gerrit.ovirt.org/59308