diff --git a/Cargo.toml b/Cargo.toml
index 840cd44..2e6a69e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -145,7 +145,7 @@ required-features = ["arrow"]
 # Backup, restore and statement analysis first appeared one release earlier, in
 # v26.7.2-rc.2, which is still the oldest engine the durable features build
 # against.
-engine = "v26.7.3"
+engine = "v26.9.0"
 
 [package.metadata.docs.rs]
 # docs.rs cannot download libchdb or link native libraries.
diff --git a/build.rs b/build.rs
index 5520b9a..a8599a0 100644
--- a/build.rs
+++ b/build.rs
@@ -6,7 +6,7 @@ use std::process::Command;
 /// The engine this crate is developed against, used when no libchdb is already
 /// present. Keep it on its own line and in step with CHDB_ENGINE_PIN in
 /// update_libchdb.sh: the release check greps for both when it proposes a bump.
-const CHDB_ENGINE_PIN: &str = "v26.7.3";
+const CHDB_ENGINE_PIN: &str = "v26.9.0";
 
 fn main() {
     println!("cargo::rustc-check-cfg=cfg(direct_arrow_insert)");
diff --git a/src/arrow_insert.rs b/src/arrow_insert.rs
index bf277c9..7881604 100644
--- a/src/arrow_insert.rs
+++ b/src/arrow_insert.rs
@@ -4,6 +4,7 @@
 //! [`Connection::register_arrow_array`](crate::connection::Connection::register_arrow_array),
 //! and `INSERT INTO … SELECT * FROM ArrowStream('name')`.
 
+#[cfg(not(direct_arrow_insert))]
 use std::sync::atomic::{AtomicU64, Ordering};
 
 use arrow::array::RecordBatchReader;
@@ -18,6 +19,7 @@ use crate::connection::Connection;
 use crate::error::Result;
 use crate::format::OutputFormat;
 
+#[cfg(not(direct_arrow_insert))]
 static FALLBACK_STREAM_SEQ: AtomicU64 = AtomicU64::new(0);
 
 /// Owns Arrow C Data Interface structs for the lifetime of a registration or insert.
@@ -201,7 +203,7 @@ pub fn insert_record_batch_direct(
     #[cfg(direct_arrow_insert)]
     {
         let _ = &columns;
-        return conn.insert_arrow_array(dest_table, &handles.schema(), &handles.array(), &options);
+        conn.insert_arrow_array(dest_table, &handles.schema(), &handles.array(), &options)
     }
 
     #[cfg(not(direct_arrow_insert))]
@@ -330,7 +332,7 @@ pub fn insert_record_batch_reader(
     #[cfg(direct_arrow_insert)]
     {
         let _ = (stream_name, &columns);
-        return conn.insert_arrow_stream(dest_table, &arrow_stream, &options);
+        conn.insert_arrow_stream(dest_table, &arrow_stream, &options)
     }
 
     #[cfg(not(direct_arrow_insert))]
diff --git a/update_libchdb.sh b/update_libchdb.sh
index 71782b0..37e0475 100755
--- a/update_libchdb.sh
+++ b/update_libchdb.sh
@@ -31,7 +31,7 @@ download_and_extract() {
 # The engine this crate is developed against. Keep it on its own line and
 # literal, and in step with CHDB_ENGINE_PIN in build.rs: the release check greps
 # for both when it proposes a bump.
-CHDB_ENGINE_PIN=v26.7.3
+CHDB_ENGINE_PIN=v26.9.0
 
 # CHDB_ENGINE_VERSION overrides the pin, which is how the release check runs the
 # suite against an engine this repository has not adopted yet.