diff --git a/debian/changelog b/debian/changelog
index 19f1c9a..05c46f6 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+omr-vps-admin (0.12+20240827) unstable; urgency=medium
+
+    * Add support for "none" encryption with Shadowsocks-go
+    * Check if there is really a modification before modifying config file
+
+ -- OpenMPTCProuter <contact@openmptcprouter.com>  Tue, 27 Aug 2024 15:14:37 +0200
+
 omr-vps-admin (0.12+20240819) unstable; urgency=medium
 
     * Add LAN IPs info in status return
diff --git a/omr-admin.py b/omr-admin.py
index a05855b..2a6d900 100755
--- a/omr-admin.py
+++ b/omr-admin.py
@@ -25,6 +25,7 @@
 import psutil
 import time
 import uuid
+import copy
 from pprint import pprint
 from datetime import datetime, timedelta
 from tempfile import mkstemp
@@ -300,11 +301,15 @@ def set_global_param(key, value):
 def modif_config_user(user, changes):
     with open('/etc/openmptcprouter-vps-admin/omr-admin-config.json') as f:
         content = json.load(f)
+    content_initial = copy.deepcopy(content)
     content['users'][0][user].update(changes)
-    LOG.debug("backup_config() in modif_config_user")
-    backup_config()
-    with open('/etc/openmptcprouter-vps-admin/omr-admin-config.json', 'w') as f:
-        json.dump(content, f, indent=4)
+    if content_initial != content:
+        LOG.debug("backup_config() in modif_config_user")
+        backup_config()
+        with open('/etc/openmptcprouter-vps-admin/omr-admin-config.json', 'w') as f:
+            json.dump(content, f, indent=4)
+    else:
+        LOG.debug("No real changes in modif_config_user")
 
 def add_ss_user(port, key, userid=0, ip=''):
     with open('/etc/shadowsocks-libev/manager.json') as f: