[ovirt-users] 4.2.7 to 4.3.5

Dear list members, I would like to upgrade my Centos 7.6 based ovirt 4.2 to 4.3.5. How is safe the upgrade ? How is stable the actual branch ? It seems to me, in 4.3.x there are a lot of cases caused by live migration, snapshot deletion, etc. Are these really existing problems? So, I'm a little bit afraid of the upgrade. It is a productive system, I don't want to make an outage. Thanks in advance, Regards, Tibor