diff --git a/app/build.gradle b/app/build.gradle
index 331a49a..bf11048 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -16,8 +16,12 @@ android {
     }
     buildTypes {
         release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            minifyEnabled true
+            shrinkResources true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            ndk {
+                debugSymbolLevel 'SYMBOL_TABLE'
+            }
         }
     }
     compileOptions {
@@ -29,25 +33,28 @@ android {
         jvmTarget = "11"
     }
     namespace 'de.moekadu.metronome'
+    buildFeatures {
+        buildConfig true
+    }
 }
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'androidx.appcompat:appcompat:1.6.1'
-    implementation 'androidx.activity:activity-ktx:1.8.0'
-    implementation 'androidx.fragment:fragment-ktx:1.6.1'
-    implementation 'com.google.android.material:material:1.11.0-alpha03'
+    implementation 'androidx.activity:activity-ktx:1.9.0'
+    implementation 'androidx.fragment:fragment-ktx:1.6.2'
+    implementation 'com.google.android.material:material:1.11.0'
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
-    implementation 'androidx.media:media:1.6.0'
+    implementation 'androidx.media:media:1.7.0'
     implementation 'androidx.dynamicanimation:dynamicanimation:1.1.0-alpha03'
     implementation 'androidx.preference:preference-ktx:1.2.1'
-    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.6.2'
-    implementation 'androidx.lifecycle:lifecycle-service:2.6.2'
-    implementation "androidx.recyclerview:recyclerview:1.3.1"
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.7.0'
+    implementation 'androidx.lifecycle:lifecycle-service:2.7.0'
+    implementation "androidx.recyclerview:recyclerview:1.3.2"
     implementation "androidx.viewpager2:viewpager2:1.1.0-beta02"
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test:runner:1.5.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
-    implementation 'androidx.core:core-ktx:1.12.0'
+    implementation 'androidx.core:core-ktx:1.13.0'
 }
diff --git a/app/src/main/java/de/moekadu/metronome/MainActivity.kt b/app/src/main/java/de/moekadu/metronome/MainActivity.kt
index 37977d2..81bce34 100644
--- a/app/src/main/java/de/moekadu/metronome/MainActivity.kt
+++ b/app/src/main/java/de/moekadu/metronome/MainActivity.kt
@@ -145,7 +145,7 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
-    override fun onNewIntent(intent: Intent?) {
+    override fun onNewIntent(intent: Intent) {
         super.onNewIntent(intent)
 //        Log.v("Metronome", "MainActivity.onNewIntent: intent=$intent")
         handleFileLoadingIntent(intent)
diff --git a/app/src/main/java/de/moekadu/metronome/audio/AudioMixer.kt b/app/src/main/java/de/moekadu/metronome/audio/AudioMixer.kt
index c838a83..a19b91d 100644
--- a/app/src/main/java/de/moekadu/metronome/audio/AudioMixer.kt
+++ b/app/src/main/java/de/moekadu/metronome/audio/AudioMixer.kt
@@ -990,7 +990,7 @@ class AudioMixer (val context: Context, private val scope: CoroutineScope) {
     }
 
     /** Set metronome speed.
-     * @param bpmQuarter Beates per minute of a quarter note.
+     * @param bpmQuarter Beats per minute of a quarter note.
      */
     fun setBpmQuarter(bpmQuarter: Float) {
         mixer.bpmQuarter = bpmQuarter
diff --git a/app/src/main/java/de/moekadu/metronome/fragments/ScenesFragment.kt b/app/src/main/java/de/moekadu/metronome/fragments/ScenesFragment.kt
index b869779..70730bd 100644
--- a/app/src/main/java/de/moekadu/metronome/fragments/ScenesFragment.kt
+++ b/app/src/main/java/de/moekadu/metronome/fragments/ScenesFragment.kt
@@ -322,6 +322,21 @@ class ScenesFragment : Fragment() {
                 }
                 super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive)
             }
+
+            override fun interpolateOutOfBoundsScroll(
+                recyclerView: RecyclerView,
+                viewSize: Int,
+                viewSizeOutOfBounds: Int,
+                totalSize: Int,
+                msSinceStartScroll: Long
+            ): Int {
+                val sign = when {
+                    viewSizeOutOfBounds > 0 -> 1
+                    viewSizeOutOfBounds < 0 -> -1
+                    else -> 0
+                }
+                return 10 * sign //(20 * viewSizeOutOfBounds) / viewSize
+            }
         }
 
         val touchHelper = ItemTouchHelper(simpleTouchHelper)
diff --git a/build.gradle b/build.gradle
index 3830bb7..5cf6c0b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.1.2'
+        classpath 'com.android.tools.build:gradle:8.3.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
 
@@ -24,8 +24,10 @@ allprojects {
     }
 
     gradle.projectsEvaluated {
-        tasks.withType(JavaCompile) {
-            options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
+        tasks.withType(JavaCompile).tap {
+            configureEach {
+                options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
+            }
         }
     }
 }
diff --git a/gradle.properties b/gradle.properties
index 960d308..22f3242 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -13,6 +13,5 @@
 #Sat Nov 02 09:23:09 CET 2019
 org.gradle.jvmargs=-Xmx1024M -Dkotlin.daemon.jvm.options\="-Xmx1024M"
 android.useAndroidX=true
-android.defaults.buildfeatures.buildconfig=true
 android.nonTransitiveRClass=false
 android.nonFinalResIds=false
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 9d206ca..f7d3f5e 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-all.zip