I need to set up a system right now and I am unsure if I should use OMV 5. Seems like it was released a couple of months ago, but there are no OMV extras yet. Is OMV 4 still getting updates/safe to use?
OMV5 is still in beta, and doesn't support most things yet. The forums are abuzz with people who shouldn't have updated to it, don't be one of them.
OMV4 is what every day users should be using, especially new users.