3.9 hasn't had any new runs. Today's results are for trunk.
===================================================
testall: All passed!
===================================================
dtest: Only one meta-test failure. This has been resolved.
===================================================
novnode: Same as dtests above.
===================================================
upgrade: 1 failure
upgrade_tests.cql_tests
.TestCQLNodes2RF1_Upgrade_current_2_1_x_To_indev_3_x
.bug_5732_test
CASSANDRA-12457. This issue is still in progress.
>From looking at 3.0.x and trunk more lately, it looks like the test fixing
efforts toward 3.9 have had a positive effect across all branches.