diff --git a/app/build.gradle b/app/build.gradle
index bfede19..60932dd 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -24,8 +24,9 @@ model {
 
         buildTypes {
             release {
-                minifyEnabled false
-                proguardFiles.add(file("proguard-rules.pro"))
+                ndk {
+                    debuggable true
+                }
             }
         }
     }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6f10d94..04c71ce 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-      package="org.ab.x48" android:installLocation="auto" android:versionCode="65" android:versionName="1.65">
+      package="org.ab.x48" android:installLocation="auto" android:versionCode="66" android:versionName="1.66">
     <application android:icon="@drawable/icon" android:label="@string/app_name">
         <activity android:name=".X48"
                   android:label="@string/app_name"