diff --git a/libs/hbb_common/src/fs.rs b/libs/hbb_common/src/fs.rs
index eb5510423..57772bd0d 100644
--- a/libs/hbb_common/src/fs.rs
+++ b/libs/hbb_common/src/fs.rs
@@ -1,4 +1,4 @@
-use crate::{bail, message_proto::*, ResultType, Stream};
+use crate::{bail, get_version_number, message_proto::*, ResultType, Stream};
 use std::path::{Path, PathBuf};
 // https://doc.rust-lang.org/std/os/windows/fs/trait.MetadataExt.html
 use crate::{
@@ -191,6 +191,10 @@ pub fn is_file_exists(file_path: &str) -> bool {
     return Path::new(file_path).exists();
 }
 
+pub fn can_enable_overwrite_detection(version: i64) -> bool {
+    version >= get_version_number("1.1.9")
+}
+
 #[derive(Default)]
 pub struct TransferJob {
     id: i32,
@@ -201,6 +205,7 @@ pub struct TransferJob {
     total_size: u64,
     finished_size: u64,
     transferred: u64,
+    enable_overwrite_detection: bool,
     file_confirmed: bool,
     file_is_waiting: bool,
     default_overwrite_strategy: Option<bool>,
@@ -229,20 +234,31 @@ fn is_compressed_file(name: &str) -> bool {
 }
 
 impl TransferJob {
-    pub fn new_write(id: i32, path: String, files: Vec<FileEntry>) -> Self {
-        println!("new write {}", path);
+    pub fn new_write(
+        id: i32,
+        path: String,
+        files: Vec<FileEntry>,
+        enable_override_detection: bool,
+    ) -> Self {
+        log::info!("new write {}", path);
         let total_size = files.iter().map(|x| x.size as u64).sum();
         Self {
             id,
             path: get_path(&path),
             files,
             total_size,
+            enable_overwrite_detection: enable_override_detection,
             ..Default::default()
         }
     }
 
-    pub fn new_read(id: i32, path: String, include_hidden: bool) -> ResultType<Self> {
-        println!("new read {}", path);
+    pub fn new_read(
+        id: i32,
+        path: String,
+        include_hidden: bool,
+        enable_override_detection: bool,
+    ) -> ResultType<Self> {
+        log::info!("new read {}", path);
         let files = get_recursive_files(&path, include_hidden)?;
         let total_size = files.iter().map(|x| x.size as u64).sum();
         Ok(Self {
@@ -250,6 +266,7 @@ impl TransferJob {
             path: get_path(&path),
             files,
             total_size,
+            enable_overwrite_detection: enable_override_detection,
             ..Default::default()
         })
     }
@@ -315,7 +332,6 @@ impl TransferJob {
     }
 
     pub async fn write(&mut self, block: FileTransferBlock, raw: Option<&[u8]>) -> ResultType<()> {
-        println!("write file transfer blk[{},{}]", block.id, block.file_num);
         if block.id != self.id {
             bail!("Wrong id");
         }
@@ -385,12 +401,14 @@ impl TransferJob {
                 }
             }
         }
-        if !self.file_confirmed() {
-            if !self.file_is_waiting() {
-                self.send_current_digest(stream).await?;
-                self.set_file_is_waiting(true);
+        if self.enable_overwrite_detection {
+            if !self.file_confirmed() {
+                if !self.file_is_waiting() {
+                    self.send_current_digest(stream).await?;
+                    self.set_file_is_waiting(true);
+                }
+                return Ok(None);
             }
-            return Ok(None);
         }
         const BUF_SIZE: usize = 128 * 1024;
         let mut buf: Vec<u8> = Vec::with_capacity(BUF_SIZE);
@@ -459,9 +477,11 @@ impl TransferJob {
         });
         msg.set_file_response(resp);
         stream.send(&msg).await?;
-        println!(
+        log::info!(
             "id: {}, file_num:{}, digest message is sent. waiting for confirm. msg: {:?}",
-            self.id, self.file_num, msg
+            self.id,
+            self.file_num,
+            msg
         );
         Ok(())
     }
@@ -500,19 +520,19 @@ impl TransferJob {
 
     pub fn confirm(&mut self, r: &FileTransferSendConfirmRequest) -> bool {
         if self.file_num() != r.file_num {
-            log::debug!("file num truncated, ignoring");
+            log::info!("file num truncated, ignoring");
         } else {
             match r.union {
                 Some(file_transfer_send_confirm_request::Union::skip(s)) => {
                     if s {
-                        println!("skip current file");
+                        log::info!("skip file id:{}, file_num:{}", r.id, r.file_num);
                         self.skip_current_file();
                     } else {
                         self.set_file_confirmed(true);
                     }
                 }
                 Some(file_transfer_send_confirm_request::Union::offset_blk(offset)) => {
-                    println!("file confirmed");
+                    log::info!("file confirmed");
                     self.set_file_confirmed(true);
                 }
                 _ => {}
@@ -538,7 +558,6 @@ pub fn new_error<T: std::string::ToString>(id: i32, err: T, file_num: i32) -> Me
 
 #[inline]
 pub fn new_dir(id: i32, path: String, files: Vec<FileEntry>) -> Message {
-    println!("[fs.rs:510] create new dir");
     let mut resp = FileResponse::new();
     resp.set_dir(FileDirectory {
         id,
@@ -585,7 +604,7 @@ pub fn new_receive(id: i32, path: String, files: Vec<FileEntry>) -> Message {
 
 #[inline]
 pub fn new_send(id: i32, path: String, include_hidden: bool) -> Message {
-    println!("new send: {},id : {}", path, id);
+    log::info!("new send: {},id : {}", path, id);
     let mut action = FileAction::new();
     action.set_send(FileTransferSendRequest {
         id,
@@ -638,7 +657,8 @@ pub async fn handle_read_jobs(
                 stream.send(&new_block(block)).await?;
             }
             Ok(None) => {
-                if !job.file_confirmed && !job.file_is_waiting {
+                if !job.enable_overwrite_detection || (!job.file_confirmed && !job.file_is_waiting)
+                {
                     finished.push(job.id());
                     stream.send(&new_done(job.id(), job.file_num())).await?;
                 } else {
diff --git a/src/server/connection.rs b/src/server/connection.rs
index 0b15c3659..5ecee471c 100644
--- a/src/server/connection.rs
+++ b/src/server/connection.rs
@@ -12,6 +12,7 @@ use hbb_common::{
     config::Config,
     fs,
     futures::{SinkExt, StreamExt},
+    get_version_number,
     message_proto::{option_message::BoolOption, permission_info::Permission},
     sleep, timeout,
     tokio::{
@@ -893,7 +894,6 @@ impl Connection {
                 }
             }
         } else if self.authorized {
-            // println!("on_message: {:?}", msg);
             match msg.union {
                 Some(message::Union::mouse_event(me)) => {
                     #[cfg(any(target_os = "android", target_os = "ios"))]
@@ -973,9 +973,9 @@ impl Connection {
                             }
                             Some(file_action::Union::send(s)) => {
                                 let id = s.id;
-                                let path = s.path;
-                                match fs::TransferJob::new_read(id, path.clone(), s.include_hidden)
-                                {
+                                let od =
+                                    can_enable_overwrite_detection(get_version_number(VERSION));
+                                match fs::TransferJob::new_read(id, s.path.clone(), s.include_hidden) {
                                     Err(err) => {
                                         self.send(fs::new_error(id, err, 0)).await;
                                     }
@@ -1195,7 +1195,6 @@ impl Connection {
     }
 
     fn read_dir(&mut self, dir: &str, include_hidden: bool) {
-        // println!("[connection.rs:1130] read_dir");
         let dir = dir.to_string();
         self.send_fs(ipc::FS::ReadDir {
             dir,
diff --git a/src/ui/cm.rs b/src/ui/cm.rs
index 9a4779664..444e26529 100644
--- a/src/ui/cm.rs
+++ b/src/ui/cm.rs
@@ -1,14 +1,17 @@
 use crate::ipc::{self, new_listener, Connection, Data};
+use crate::VERSION;
 #[cfg(windows)]
 use clipboard::{
     create_cliprdr_context, empty_clipboard, get_rx_clip_client, server_clip_file, set_conn_enabled,
 };
-use hbb_common::fs::{get_string, is_write_need_confirmation, new_send_confirm};
+use hbb_common::fs::{
+    can_enable_overwrite_detection, get_string, is_write_need_confirmation, new_send_confirm,
+};
 use hbb_common::log::log;
 use hbb_common::{
     allow_err,
     config::Config,
-    fs, log,
+    fs, get_version_number, log,
     message_proto::*,
     protobuf::Message as _,
     tokio::{self, sync::mpsc, task::spawn_blocking},
@@ -156,6 +159,7 @@ impl ConnectionManager {
                     id,
                     mut files,
                 } => {
+                    let od = can_enable_overwrite_detection(get_version_number(VERSION));
                     write_jobs.push(fs::TransferJob::new_write(
                         id,
                         path,
@@ -167,6 +171,7 @@ impl ConnectionManager {
                                 ..Default::default()
                             })
                             .collect(),
+                        od,
                     ));
                 }
                 ipc::FS::CancelWrite { id } => {
@@ -210,7 +215,7 @@ impl ConnectionManager {
                                     if let Some(mut digest) = digest {
                                         // upload to server, but server has the same file, request
                                         digest.is_upload = is_upload;
-                                        println!(
+                                        log::info!(
                                             "server has the same file, send server digest to local"
                                         );
                                         let mut msg_out = Message::new();
diff --git a/src/ui/file_transfer.tis b/src/ui/file_transfer.tis
index f93b90ddf..8152408d8 100644
--- a/src/ui/file_transfer.tis
+++ b/src/ui/file_transfer.tis
@@ -679,7 +679,6 @@ function confirmDelete(id ,path, is_remote) {
 }
 
 handler.confirmDeleteFiles = function(id, i, name) {
-  stdout.println("id=" + id +", i=" +",name="+name);
   var jt = file_transfer.job_table;
   var job = jt.job_map[id];
   if (!job) return;
@@ -695,6 +694,7 @@ handler.confirmDeleteFiles = function(id, i, name) {
     </div>", function(res=null) {
       if (!res) {
         jt.updateJobStatus(id, i - 1, "cancel");
+        file_transfer.job_table.confirmDeletePolling();
       } else if (res.skip) {
         if (res.remember){
           jt.updateJobStatus(id, i, "cancel");
@@ -718,9 +718,6 @@ handler.confirmDeleteFiles = function(id, i, name) {
 
 handler.overrideFileConfirm = function(id, file_num, to, is_upload) {
   var jt = file_transfer.job_table;
-  var job = jt.job_map[id];
-  stdout.println("job type: " + job.type);
-  stdout.println(JSON.stringify(job));
   msgbox("custom-skip", "Confirm Write Strategy", "<div .form> \
         <div>" + translate('Overwrite') + translate('files') + ".</div> \
         <div>" + translate('This file exists, skip or overwrite this file?') + "</div> \
diff --git a/src/ui/remote.rs b/src/ui/remote.rs
index fc2869e7b..8a1492393 100644
--- a/src/ui/remote.rs
+++ b/src/ui/remote.rs
@@ -11,7 +11,9 @@ use clipboard::{
     get_rx_clip_client, server_clip_file,
 };
 use enigo::{self, Enigo, KeyboardControllable};
-use hbb_common::fs::{get_string, is_file_exists, new_send_confirm};
+use hbb_common::fs::{
+    can_enable_overwrite_detection, get_string, is_file_exists, new_send_confirm,
+};
 use hbb_common::log::log;
 use hbb_common::{
     allow_err,
@@ -1537,25 +1539,27 @@ impl Remote {
                 allow_err!(peer.send(&msg).await);
             }
             Data::SendFiles((id, path, to, include_hidden, is_remote)) => {
-                println!("send files, is remote {}", is_remote);
+                log::info!("send files, is remote {}", is_remote);
+                let od = can_enable_overwrite_detection(self.handler.lc.read().unwrap().version);
                 if is_remote {
-                    println!("New job {}, write to {} from remote {}", id, to, path);
+                    log::debug!("New job {}, write to {} from remote {}", id, to, path);
                     self.write_jobs
-                        .push(fs::TransferJob::new_write(id, to, Vec::new()));
+                        .push(fs::TransferJob::new_write(id, to, Vec::new(), od));
                     allow_err!(peer.send(&fs::new_send(id, path, include_hidden)).await);
                 } else {
-                    match fs::TransferJob::new_read(id, path.clone(), include_hidden) {
+                    match fs::TransferJob::new_read(id, path.clone(), include_hidden, od) {
                         Err(err) => {
                             self.handle_job_status(id, -1, Some(err.to_string()));
                         }
                         Ok(job) => {
-                            println!(
+                            log::debug!(
                                 "New job {}, read {} to remote {}, {} files",
                                 id,
                                 path,
                                 to,
                                 job.files().len()
                             );
+                            let config = self.handler.lc.read().unwrap().version;
                             let m = make_fd(job.id(), job.files(), true);
                             self.handler.call("updateFolderFiles", &make_args!(m));
                             let files = job.files().clone();
@@ -1780,7 +1784,6 @@ impl Remote {
 
     async fn handle_msg_from_peer(&mut self, data: &[u8], peer: &mut Stream) -> bool {
         if let Ok(msg_in) = Message::parse_from_bytes(&data) {
-            // println!("recved msg from peer, decoded: {:?}", msg_in);
             match msg_in.union {
                 Some(message::Union::video_frame(vf)) => {
                     if !self.first_frame {
@@ -1928,13 +1931,11 @@ impl Remote {
                         if let Some(job) = fs::get_job(block.id, &mut self.write_jobs) {
                             if let Err(_err) = job.write(block, None).await {
                                 // to-do: add "skip" for writing job
-                                println!("error: {}", _err);
                             }
                             self.update_jobs_status();
                         }
                     }
                     Some(file_response::Union::done(d)) => {
-                        log::info!("file response done");
                         if let Some(job) = fs::get_job(d.id, &mut self.write_jobs) {
                             job.modify_time();
                             fs::remove_job(d.id, &mut self.write_jobs);