So far Oxygen 1 has not been declared and R4_7_maintenance is closed. If
no issue arises on the train (projects) for RC4. we will declare Oxygen
1 this Friday and then open R4_7_maintenance for the next official release,
which is Oxygen 1a where ONLY JUnit 5 and Java 9 related changes are allowed.
All other changes must be contributed after Oxygen 1a is out on October
Of course preparing Gerrit changes against R4_7_maintenance is allowed,
just merging them is not allowed.