We are just a few days away from creating the Juniper release branches (open-release/juniper.master) in the relevant repos. Up until now, and still for a few days, everything being committed to master is part of Juniper. Once the Juniper branches are created, changes will have to be cherry-picked to be part of Juniper.
The open issues for Juniper are here: https://openedx.atlassian.net/secure/RapidBoard.jspa?rapidView=626 Anything you can do to help pinpoint or fix a problem is greatly appreciated.
If you want to know more, we have an FAQ about the Open edX releases. Please reach out if you have any questions.