diff --git a/app/build.gradle b/app/build.gradle
index ddd93c88c..ecbfd6463 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,15 +1,15 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 28
-    buildToolsVersion '28.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.0'
 
     defaultConfig {
         applicationId "net.kdt.pojavlaunch"
         minSdkVersion 21
         targetSdkVersion 26
-        versionCode 156231
-        versionName "2.4.2_preview11_6393b_20200411"
+        versionCode 156232
+        versionName "2.4.2_preview11b1_6394b_20200413"
     }
 	
     buildTypes {
@@ -33,10 +33,10 @@ dependencies {
 	implementation 'javax.annotation:javax.annotation-api:1.3.2'
 	implementation 'commons-codec:commons-codec:1.14'
     implementation 'com.wu-man:android-bsf-api:3.1.3'
-    implementation 'com.android.support:support-v4:28.0.0'
-    implementation 'com.android.support:appcompat-v7:28.0.0'
-    implementation 'com.android.support:design:28.0.0'
-    implementation 'com.android.support:support-annotations:28.0.0'
+    implementation 'com.android.support:support-v4:26.0.0'
+    implementation 'com.android.support:appcompat-v7:26.0.0'
+    implementation 'com.android.support:design:26.0.0'
+    implementation 'com.android.support:support-annotations:26.0.0'
 	// compile 'com.google.guava:guava:24.0-android'
 
 	implementation fileTree(dir: 'libs', include: ['*.jar'])
diff --git a/app/src/main/java/net/kdt/pojavlaunch/MainActivity.java b/app/src/main/java/net/kdt/pojavlaunch/MainActivity.java
index a28db29c9..dd96824ba 100644
--- a/app/src/main/java/net/kdt/pojavlaunch/MainActivity.java
+++ b/app/src/main/java/net/kdt/pojavlaunch/MainActivity.java
@@ -389,7 +389,7 @@ public class MainActivity extends AppCompatActivity implements OnTouchListener,
 					}
 				});
 				
-			System.loadLibrary("gl04es");
+			System.loadLibrary("Regal");
 
 			Bitmap awtGraphics = Bitmap.createBitmap(10, 10, Bitmap.Config.ARGB_8888);
 			AndroidGraphics2D.getInstance(this, new Canvas(awtGraphics), null);
@@ -950,7 +950,7 @@ public class MainActivity extends AppCompatActivity implements OnTouchListener,
 			System.out.println(Cipher.getInstance("RSA"));
 			System.out.println(Cipher.getInstance("RSA/ECB/PKCS1Padding"));
 */
-			if (true) { // android.os.Build.VERSION.SDK_INT >= 23) { // Marshmallow
+			if (android.os.Build.VERSION.SDK_INT >= 23) { // Marshmallow
 				// FUUUUU I DON'T KNOW FIXME
 				Cipher rsaPkcs1Cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
 				// Cipher.getInstance("RSA", rsaPkcs1Cipher.getProvider());
diff --git a/app/src/main/jniLibs/armeabi-v7a/libRegal.so b/app/src/main/jniLibs/armeabi-v7a/libRegal.so
new file mode 100644
index 000000000..3bf5ab33d
Binary files /dev/null and b/app/src/main/jniLibs/armeabi-v7a/libRegal.so differ
diff --git a/app/src/main/jniLibs/armeabi-v7a/libgl04es.so b/app/src/main/jniLibs/armeabi-v7a/libgl04es.so
deleted file mode 100644
index 55afa94d0..000000000
Binary files a/app/src/main/jniLibs/armeabi-v7a/libgl04es.so and /dev/null differ
diff --git a/app/src/main/jniLibs/armeabi-v7a/liblwjgl.so b/app/src/main/jniLibs/armeabi-v7a/liblwjgl.so
index 74df428e9..34daa5a5a 100644
Binary files a/app/src/main/jniLibs/armeabi-v7a/liblwjgl.so and b/app/src/main/jniLibs/armeabi-v7a/liblwjgl.so differ
diff --git a/app/src/main/jniLibs/armeabi-v7a/liblwjgl.so.boardwalk b/app/src/main/jniLibs/armeabi-v7a/liblwjgl.so.boardwalk
new file mode 100644
index 000000000..74df428e9
Binary files /dev/null and b/app/src/main/jniLibs/armeabi-v7a/liblwjgl.so.boardwalk differ
diff --git a/app/src/main/jniLibs/x86/libRegal.so b/app/src/main/jniLibs/x86/libRegal.so
new file mode 100644
index 000000000..d4b423d4e
Binary files /dev/null and b/app/src/main/jniLibs/x86/libRegal.so differ
diff --git a/app/src/main/jniLibs/x86/libgl04es.so b/app/src/main/jniLibs/x86/libgl04es.so
deleted file mode 100644
index 1141f95f7..000000000
Binary files a/app/src/main/jniLibs/x86/libgl04es.so and /dev/null differ