diff -U3 /Users/admin/pgsql/src/test/regress/expected/subscription.out /Users/admin/pgsql/build/testrun/pg_upgrade/002_pg_upgrade/data/results/subscription.out
--- /Users/admin/pgsql/src/test/regress/expected/subscription.out	2024-04-05 11:34:23
+++ /Users/admin/pgsql/build/testrun/pg_upgrade/002_pg_upgrade/data/results/subscription.out	2024-04-05 11:36:14
@@ -381,7 +381,7 @@
 
 --fail - alter of two_phase option not supported.
 ALTER SUBSCRIPTION regress_testsub SET (two_phase = false);
-ERROR:  unrecognized subscription parameter: "two_phase"
+ERROR:  could not connect to the publisher: connection to server on socket "/var/folders/xc/tpssff9959345bnqq4c6tlww0000gn/T/IhRWCWNhrU/.s.PGSQL.61868" failed: FATAL:  number of requested standby connections exceeds max_wal_senders (currently 0)
 -- but can alter streaming when two_phase enabled
 ALTER SUBSCRIPTION regress_testsub SET (streaming = true);
 \dRs+