diff --git a/winboll/build.gradle b/winboll/build.gradle
index d536381..1ab50c8 100644
--- a/winboll/build.gradle
+++ b/winboll/build.gradle
@@ -18,10 +18,14 @@ def genVersionName(def versionName){
 }
 
 android {
-	// 适配MIUI12
-	compileSdkVersion 30
-    buildToolsVersion "30.0.3"
-	
+ 	// 适配MIUI12
+     compileSdkVersion 30
+ 	
+     compileOptions {
+         sourceCompatibility JavaVersion.VERSION_1_7
+         targetCompatibility JavaVersion.VERSION_1_7
+     }
+ 
     defaultConfig {
         applicationId "cc.winboll.studio.winboll"
         minSdkVersion 26
@@ -31,7 +35,7 @@ android {
         // versionName 更新后需要手动设置 
         // .winboll/winbollBuildProps.properties 文件的 stageCount=0
         // Gradle编译环境下合起来的 versionName 就是 "${versionName}.0"
-        versionName "15.20"
+        versionName "15.21"
         if(true) {
             versionName = genVersionName("${versionName}")
         }
@@ -39,7 +43,6 @@ android {
 }
 
 dependencies {
-	api project(':libwinboll')
     api 'com.google.code.gson:gson:2.10.1'
 	
 	// 下拉控件
@@ -97,8 +100,8 @@ dependencies {
 	implementation 'androidx.biometric:biometric:1.1.0'
 	
 	// WinBoLL库 nexus.winboll.cc 地址
-    api 'cc.winboll.studio:libappbase:15.20.33'
-    api 'cc.winboll.studio:libaes:15.20.16'
+    api 'cc.winboll.studio:libappbase:15.21.+'
+    api 'cc.winboll.studio:libaes:15.21.+'
 	
 	// 备用库 jitpack.io 地址
 	//api 'com.github.ZhanGSKen:libappbase:appbase-v15.20.33'
diff --git a/winboll/build.properties b/winboll/build.properties
index 1a600ca..58fd00b 100644
--- a/winboll/build.properties
+++ b/winboll/build.properties
@@ -1,8 +1,8 @@
 #Created by .winboll/winboll_app_build.gradle
-#Wed Jun 24 08:11:15 CST 2026
-stageCount=9
-libraryProject=libwinboll
-baseVersion=15.20
-publishVersion=15.20.8
+#Tue Jul 21 09:55:56 HKT 2026
+stageCount=1
+libraryProject=
+baseVersion=15.21
+publishVersion=15.21.0
 buildCount=0
-baseBetaVersion=15.20.9
+baseBetaVersion=15.21.1
diff --git a/winboll/src/main/java/cc/winboll/studio/winboll/MainActivity.java b/winboll/src/main/java/cc/winboll/studio/winboll/MainActivity.java
index 7f34285..da137ee 100644
--- a/winboll/src/main/java/cc/winboll/studio/winboll/MainActivity.java
+++ b/winboll/src/main/java/cc/winboll/studio/winboll/MainActivity.java
@@ -193,9 +193,7 @@ public class MainActivity extends DrawerFragmentActivity {
             } else if (nItemId == R.id.item_termux_env_test) {
                 Intent intent = new Intent(getApplicationContext(), TermuxEnvTestActivity.class);
                 WinBoLLActivityManager.getInstance().startWinBoLLActivity(getApplicationContext(), intent, AboutActivity.class);
-            } else if (nItemId == R.id.item_library_activity) {
-                Intent intent = new Intent(getApplicationContext(), cc.winboll.studio.libwinboll.WinBoLLLibraryActivity.class);
-                WinBoLLActivityManager.getInstance().startWinBoLLActivity(getApplicationContext(), intent, AboutActivity.class);
+
             } else {
                 return super.onOptionsItemSelected(item);
             }