[ovirt-users] Switch from nightly to stable

Dear users, Around ovirt 4.2.2 after a bug I had switch to nightly from stable. Its was do applied only on the engine, not compute nodes. But now I would like to switch back to stable branch. How is safe that? I just need do remove the nightly repo and update? Need to apply a yum update * before or not? Please describe me what is the safe procedure. Thanks in advance, Regards, Tibor