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 11.
Of course preparing Gerrit changes against
R4_7_maintenance is allowed, just merging them is not allowed.