diff --git a/safekeeper/src/timeline.rs b/safekeeper/src/timeline.rs
index ec29e13931..c16fc9f40c 100644
--- a/safekeeper/src/timeline.rs
+++ b/safekeeper/src/timeline.rs
@@ -24,12 +24,12 @@ use utils::{
     pq_proto::ReplicationFeedback,
 };
 
-use crate::control_file;
 use crate::safekeeper::{
     AcceptorProposerMessage, ProposerAcceptorMessage, SafeKeeper, SafeKeeperState,
     SafekeeperMemState, ServerInfo,
 };
 use crate::send_wal::HotStandbyFeedback;
+use crate::{control_file, safekeeper::UNKNOWN_SERVER_VERSION};
 
 use crate::metrics::FullTimelineInfo;
 use crate::wal_storage;
@@ -103,6 +103,10 @@ impl SharedState {
             bail!(TimelineError::UninitializedWalSegSize(*ttid));
         }
 
+        if state.server.pg_version == UNKNOWN_SERVER_VERSION {
+            bail!(TimelineError::UninitialinzedPgVersion(*ttid));
+        }
+
         // We don't want to write anything to disk, because we may have existing timeline there.
         // These functions should not change anything on disk.
         let control_store = control_file::FileStorage::create_new(ttid, conf, state)?;
@@ -270,6 +274,8 @@ pub enum TimelineError {
     AlreadyExists(TenantTimelineId),
     #[error("Timeline {0} is not initialized, wal_seg_size is zero")]
     UninitializedWalSegSize(TenantTimelineId),
+    #[error("Timeline {0} is not initialized, pg_version is unknown")]
+    UninitialinzedPgVersion(TenantTimelineId),
 }
 
 /// Timeline struct manages lifecycle (creation, deletion, restore) of a safekeeper timeline.
diff --git a/safekeeper/src/wal_storage.rs b/safekeeper/src/wal_storage.rs
index 9e198fc148..95ad71bbbd 100644
--- a/safekeeper/src/wal_storage.rs
+++ b/safekeeper/src/wal_storage.rs
@@ -13,9 +13,7 @@ use std::io::{self, Seek, SeekFrom};
 use std::pin::Pin;
 use tokio::io::AsyncRead;
 
-use postgres_ffi::v14::xlog_utils::{
-    IsPartialXLogFileName, IsXLogFileName, XLogFromFileName,
-};
+use postgres_ffi::v14::xlog_utils::{IsPartialXLogFileName, IsXLogFileName, XLogFromFileName};
 use postgres_ffi::{XLogSegNo, PG_TLI};
 use std::cmp::{max, min};
 
@@ -29,7 +27,6 @@ use utils::{id::TenantTimelineId, lsn::Lsn};
 
 use crate::metrics::{time_io_closure, WalStorageMetrics};
 use crate::safekeeper::SafeKeeperState;
-use crate::safekeeper::UNKNOWN_SERVER_VERSION;
 
 use crate::wal_backup::read_object;
 use crate::SafeKeeperConf;
@@ -117,7 +114,19 @@ impl PhysicalStorage {
         let write_lsn = if state.commit_lsn == Lsn(0) {
             Lsn(0)
         } else {
-            find_end_of_wal(&timeline_dir, wal_seg_size, state.commit_lsn)?
+            match state.server.pg_version / 10000 {
+                14 => postgres_ffi::v14::xlog_utils::find_end_of_wal(
+                    &timeline_dir,
+                    wal_seg_size,
+                    state.commit_lsn,
+                )?,
+                15 => postgres_ffi::v15::xlog_utils::find_end_of_wal(
+                    &timeline_dir,
+                    wal_seg_size,
+                    state.commit_lsn,
+                )?,
+                _ => bail!("unsupported postgres version"),
+            }
         };
 
         // TODO: do we really know that write_lsn is fully flushed to disk?
@@ -140,7 +149,7 @@ impl PhysicalStorage {
             write_lsn,
             write_record_lsn: write_lsn,
             flush_record_lsn: flush_lsn,
-            decoder: WalStreamDecoder::new(write_lsn, UNKNOWN_SERVER_VERSION),
+            decoder: WalStreamDecoder::new(write_lsn, state.server.pg_version / 10000),
             file: None,
         })
     }