branching: merge with stable

8 jobs for topic/default/release-prep in 7 minutes and 41 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Test
passed checks-py2 #201731

00:01:32

passed checks-py3 #201732

00:01:35

passed doc #201737

00:00:36

manual pytype #201730
allowed to fail manual
passed tests-py2-cext #201733

00:04:48

passed tests-py2-pure #201734

00:03:00

passed tests-py3-cext #201735

00:04:32

passed tests-py3-pure #201736

00:07:40