diff --git a/libs/walproposer/src/api_bindings.rs b/libs/walproposer/src/api_bindings.rs
index d660602149..2e85bdb990 100644
--- a/libs/walproposer/src/api_bindings.rs
+++ b/libs/walproposer/src/api_bindings.rs
@@ -434,6 +434,7 @@ pub fn empty_shmem() -> crate::bindings::WalproposerShmemState {
         donor_conninfo: [0; 1024],
         donor_lsn: 0,
         mutex: 0,
+		bgw_started: false,
         mineLastElectedTerm: crate::bindings::pg_atomic_uint64 { value: 0 },
         backpressureThrottlingTime: crate::bindings::pg_atomic_uint64 { value: 0 },
         currentClusterSize: crate::bindings::pg_atomic_uint64 { value: 0 },
diff --git a/test_runner/regress/test_replica_promote.py b/test_runner/regress/test_replica_promote.py
index 962f132d56..c179457c93 100644
--- a/test_runner/regress/test_replica_promote.py
+++ b/test_runner/regress/test_replica_promote.py
@@ -5,14 +5,12 @@ This far, only contains a test that we don't break and that the data is persiste
 """
 
 import psycopg2
-import pytest
-import time
+
 from fixtures.neon_fixtures import Endpoint, NeonEnv, wait_replica_caughtup
 from fixtures.pg_version import PgVersion
 from fixtures.log_helper import log
 from pytest import raises
 
-@pytest.mark.timeout(6000)
 def test_replica_promotes(neon_simple_env: NeonEnv, pg_version: PgVersion):
     """
     Test that a replica safely promotes, and can commit data updates which
@@ -90,12 +88,8 @@ def test_replica_promotes(neon_simple_env: NeonEnv, pg_version: PgVersion):
 
     new_primary_cur.execute("select count(*) from t")
     assert new_primary_cur.fetchone() == (200,)
-    new_primary_cur.execute("select pg_current_wal_flush_lsn()")
-    lsn = new_primary_cur.fetchall()[0][0]
-    log.info(f"New primary flush LSN={lsn}")
 
     new_primary.stop(mode="immediate")
-    new_primary.hot_standby = False
     new_primary.start()
 
     with new_primary.connect() as new_primary_conn:
diff --git a/vendor/postgres-v17 b/vendor/postgres-v17
index 8be779fd3a..28b88cfedf 160000
--- a/vendor/postgres-v17
+++ b/vendor/postgres-v17
@@ -1 +1 @@
-Subproject commit 8be779fd3ab9e87206da96a7e4842ef1abf04f44
+Subproject commit 28b88cfedf9a6028cf7ea32a80ea15a9bf971803
diff --git a/vendor/revisions.json b/vendor/revisions.json
index 3e999760f4..c72b149004 100644
--- a/vendor/revisions.json
+++ b/vendor/revisions.json
@@ -1,7 +1,7 @@
 {
   "v17": [
     "17.5",
-    "8be779fd3ab9e87206da96a7e4842ef1abf04f44"
+    "28b88cfedf9a6028cf7ea32a80ea15a9bf971803"
   ],
   "v16": [
     "16.9",