diff --git a/.github/workflows/aquamai.yaml b/.github/workflows/aquamai.yaml
index 6bafbc81..489f6eca 100644
--- a/.github/workflows/aquamai.yaml
+++ b/.github/workflows/aquamai.yaml
@@ -29,7 +29,7 @@ jobs:
         run: |
           copy /y build-assets\SDEZ\* AquaMai\Libs
           cd AquaMai
-          dotnet build -c Release
+          dotnet build -c Release /p:DefineConstants="CI"
 
       - name: Make example config
         shell: cmd
diff --git a/AquaMai/Helpers/MessageHelper.cs b/AquaMai/Helpers/MessageHelper.cs
index 0d66c603..348ddd95 100644
--- a/AquaMai/Helpers/MessageHelper.cs
+++ b/AquaMai/Helpers/MessageHelper.cs
@@ -17,7 +17,7 @@ public class MessageHelper
         _genericManager = genericManager;
     }
 
-    public static void ShowMessage(string message, WindowSizeID size = WindowSizeID.Middle)
+    public static void ShowMessage(string message, WindowSizeID size = WindowSizeID.Middle, string title = null)
     {
         if (_genericManager is null)
         {
@@ -27,7 +27,9 @@ public class MessageHelper
 
         _genericManager.Enqueue(0, WindowMessageID.CollectionAttentionEmptyFavorite, new WindowParam()
         {
-            hideTitle = true,
+            hideTitle = title is null,
+            replaceTitle = true,
+            title = title,
             replaceText = true,
             text = message,
             changeSize = true,
diff --git a/AquaMai/Main.cs b/AquaMai/Main.cs
index 79798272..8efe9559 100644
--- a/AquaMai/Main.cs
+++ b/AquaMai/Main.cs
@@ -188,6 +188,9 @@ namespace AquaMai
             Patch(typeof(TestProof));
             Patch(typeof(PractiseMode));
             Patch(typeof(HideSelfMadeCharts));
+# if CI
+            Patch(typeof(CiBuildAlert));
+# endif
 
             // Apply patches based on the settings
             ApplyPatches();
@@ -198,6 +201,11 @@ namespace AquaMai
                 MelonLogger.Warning("===========================================================================");
             }
 
+# if CI
+            MelonLogger.Warning(Locale.CiBuildAlertTitle);
+            MelonLogger.Warning(Locale.CiBuildAlertContent);
+# endif
+
             MelonLogger.Msg(Locale.Loaded);
         }
 
diff --git a/AquaMai/Resources/Locale.Designer.cs b/AquaMai/Resources/Locale.Designer.cs
index 75e6ae87..06c8962b 100644
--- a/AquaMai/Resources/Locale.Designer.cs
+++ b/AquaMai/Resources/Locale.Designer.cs
@@ -59,6 +59,24 @@ namespace AquaMai.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to You are using AquaMai CI build version. This version is built from the latest mainline code and may contain undocumented configuration changes or potential issues..
+        /// </summary>
+        internal static string CiBuildAlertContent {
+            get {
+                return ResourceManager.GetString("CiBuildAlertContent", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Important Notice: Test Version.
+        /// </summary>
+        internal static string CiBuildAlertTitle {
+            get {
+                return ResourceManager.GetString("CiBuildAlertTitle", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Loaded!.
         /// </summary>
diff --git a/AquaMai/Resources/Locale.resx b/AquaMai/Resources/Locale.resx
index 6358fab1..080b297c 100644
--- a/AquaMai/Resources/Locale.resx
+++ b/AquaMai/Resources/Locale.resx
@@ -95,4 +95,10 @@
     <data name="RepeatEndTimeLessThenStartTime" xml:space="preserve">
         <value>Repeat end time cannot be less than repeat start time</value>
     </data>
+    <data name="CiBuildAlertTitle" xml:space="preserve">
+        <value>Important Notice: Test Version</value>
+    </data>
+    <data name="CiBuildAlertContent" xml:space="preserve">
+        <value>You are using AquaMai CI build version. This version is built from the latest mainline code and may contain undocumented configuration changes or potential issues.</value>
+    </data>
 </root>
diff --git a/AquaMai/Resources/Locale.zh.resx b/AquaMai/Resources/Locale.zh.resx
index 194d5006..eee9d712 100644
--- a/AquaMai/Resources/Locale.zh.resx
+++ b/AquaMai/Resources/Locale.zh.resx
@@ -88,4 +88,10 @@
     <data name="RepeatStartTimeNotSet" xml:space="preserve">
         <value>请先设置循环开始时间</value>
     </data>
+    <data name="CiBuildAlertTitle" xml:space="preserve">
+        <value>重要提示：测试版本</value>
+    </data>
+    <data name="CiBuildAlertContent" xml:space="preserve">
+        <value>您正在使用的是 AquaMai CI 构建版本。由于该版本基于最新的主线代码构建，可能包含未通知的配置文件变更或潜在问题。</value>
+    </data>
 </root>
diff --git a/AquaMai/UX/CiBuildAlert.cs b/AquaMai/UX/CiBuildAlert.cs
new file mode 100644
index 00000000..b6c2e307
--- /dev/null
+++ b/AquaMai/UX/CiBuildAlert.cs
@@ -0,0 +1,16 @@
+using AquaMai.Helpers;
+using AquaMai.Resources;
+using HarmonyLib;
+using Process;
+
+namespace AquaMai.UX;
+
+public class CiBuildAlert
+{
+    [HarmonyPatch(typeof(AdvertiseProcess), "OnStart")]
+    [HarmonyPostfix]
+    public static void OnStart(AdvertiseProcess __instance)
+    {
+        MessageHelper.ShowMessage(Locale.CiBuildAlertContent, title: Locale.CiBuildAlertTitle);
+    }
+}