Upgrading docker install skipping minor version

Hello, I have searched for a while and couldn’t find a clear answer to my question: is it safe to skip minor versions in case of docker install?
I was asked to upgrade our Gitlab CE 10.3.4 installed in docker and I’m looking to upgrade to 10.6 branch. It it safe to skip 10.4 and 10.5 branches?

Also, while we’re at it, is there some kind of security mailing list for Gitlab CE?