You can refer to 4.3 upgrade guide:

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.3/html/upgrade_guide/index

On Thursday, December 19, 2019, David David <dd432690@gmail.com> wrote:

hi all

how do upgrade from 4.2.5 to 4.3.7 ?
what steps are necessary, are the same as when upgrading from 4.1 to 4.2?

# engine-upgrade-check
# yum update ovirt*setup*
# engine-setup

thanks
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