There is no 4.3.1 release scheduled at this time - the next release is eZ Publish 4.4, due in two weeks.
Various fixes are backported as part of normal development, but the git branch is not meant for direct consumption. Thus, if you run it, expect to run into problems. The best way to get an up to date installation, is to use 4.3.0 and the automated patch service that is part of eZ Publish premium
Yea, I know there are no maintenace releases anymore. This was point of discussion a few months/weeks ago here in the community. Ok, so dump the questions according to git and what is in there.
But there is still the issue with the missing sql-update statements eZSystems should know about. As I don't know if your "automated patch service" has or has not this sql-statement in it, I thought posting those things might be useful. Especially for your paying premium customers.