diff --git a/src/rime/lever/customizer.cc b/src/rime/lever/customizer.cc
index 727f6c37c4..0ada600d4b 100644
--- a/src/rime/lever/customizer.cc
+++ b/src/rime/lever/customizer.cc
@@ -28,6 +28,7 @@ namespace rime {
 // 1.0    X      2.0.custom.X (up-to-date)
 // 1.0    Y      1.0.custom.X  --> Update: 1.0.custom.Y
 //
+// DEPRECATED: in favor of auto-patch config compiler plugin
 bool Customizer::UpdateConfigFile() {
   bool need_update = false;
   bool redistribute = false;
@@ -146,4 +147,9 @@ bool Customizer::UpdateConfigFile() {
   return true;
 }
 
+bool Customizer::TrashCustomizedCopy() {
+  // TODO: unimplemented
+  return false;
+}
+
 }  // namespace rime
diff --git a/src/rime/lever/customizer.h b/src/rime/lever/customizer.h
index a1df6fd89c..42d892d7b0 100644
--- a/src/rime/lever/customizer.h
+++ b/src/rime/lever/customizer.h
@@ -2,8 +2,6 @@
 // Copyright RIME Developers
 // Distributed under the BSD License
 //
-// 2012-02-12 GONG Chen <chen.sst@gmail.com>
-//
 #ifndef RIME_CUSTOMIZER_H_
 #define RIME_CUSTOMIZER_H_
 
@@ -20,8 +18,11 @@ class Customizer {
         dest_path_(dest_path),
         version_key_(version_key) {}
 
+  // DEPRECATED: in favor of auto-patch config compiler plugin
   bool UpdateConfigFile();
 
+  bool TrashCustomizedCopy();
+
  protected:
   boost::filesystem::path source_path_;
   boost::filesystem::path dest_path_;
diff --git a/src/rime/lever/deployment_tasks.cc b/src/rime/lever/deployment_tasks.cc
index 0a0766b486..4c66023edd 100644
--- a/src/rime/lever/deployment_tasks.cc
+++ b/src/rime/lever/deployment_tasks.cc
@@ -268,8 +268,8 @@ bool SchemaUpdate::Run(Deployer* deployer) {
   fs::path user_data_path(deployer->user_data_dir);
   fs::path destination_path(user_data_path / (schema_id + ".schema.yaml"));
   Customizer customizer(source_path, destination_path, "schema/version");
-  if (customizer.UpdateConfigFile()) {
-    LOG(INFO) << "schema '" << schema_id << "' is updated.";
+  if (customizer.TrashCustomizedCopy()) {
+    LOG(INFO) << "patched copy of schema '" << schema_id << "' is moved to trash";
   }
 
   Schema schema(schema_id, new Config);
@@ -327,7 +327,8 @@ bool ConfigFileUpdate::Run(Deployer* deployer) {
     source_config_path = dest_config_path;
   }
   Customizer customizer(source_config_path, dest_config_path, version_key_);
-  return customizer.UpdateConfigFile();
+  customizer.TrashCustomizedCopy();
+  return true;
 }
 
 bool PrebuildAllSchemas::Run(Deployer* deployer) {