diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index c7825dbed..6ad9837f4 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -4,12 +4,12 @@ plugins {
 }
 
 android {
-    compileSdkPreview = "Tiramisu"
+    compileSdk = 32
 
     defaultConfig {
         applicationId = "com.chiller3.bcr"
         minSdk = 29
-        targetSdkPreview = "Tiramisu"
+        targetSdk = 32
         versionCode = 1
         versionName = "1.0"
 
diff --git a/app/src/main/java/com/chiller3/bcr/Permissions.kt b/app/src/main/java/com/chiller3/bcr/Permissions.kt
index d46c68923..21f104d55 100644
--- a/app/src/main/java/com/chiller3/bcr/Permissions.kt
+++ b/app/src/main/java/com/chiller3/bcr/Permissions.kt
@@ -12,11 +12,7 @@ import androidx.core.content.ContextCompat
 import androidx.core.os.BuildCompat
 
 object Permissions {
-    private val REQUIRED_33: Array<String> = arrayOf(Manifest.permission.POST_NOTIFICATIONS)
-
-    @BuildCompat.PrereleaseSdkCheck
-    val REQUIRED: Array<String> = if (BuildCompat.isAtLeastT()) { REQUIRED_33 } else { arrayOf() } +
-           arrayOf(Manifest.permission.RECORD_AUDIO)
+    val REQUIRED: Array<String> = arrayOf(Manifest.permission.RECORD_AUDIO)
 
     private fun isGranted(context: Context, permission: String) =
         ContextCompat.checkSelfPermission(context, permission) == PackageManager.PERMISSION_GRANTED
diff --git a/app/src/main/java/com/chiller3/bcr/RecorderApplication.kt b/app/src/main/java/com/chiller3/bcr/RecorderApplication.kt
index 34723ffc4..0ad474136 100644
--- a/app/src/main/java/com/chiller3/bcr/RecorderApplication.kt
+++ b/app/src/main/java/com/chiller3/bcr/RecorderApplication.kt
@@ -1,13 +1,34 @@
 package com.chiller3.bcr
 
 import android.app.Application
+import android.app.NotificationChannel
+import android.app.NotificationManager
 import com.google.android.material.color.DynamicColors
 
 class RecorderApplication : Application() {
+    companion object {
+        const val CHANNEL_ID = "persistent"
+    }
+
     override fun onCreate() {
         super.onCreate()
 
         // Enable Material You colors
         DynamicColors.applyToActivitiesIfAvailable(this)
+
+        createNotificationChannel()
+    }
+
+    /**
+     * Create a low priority notification channel for the persistent notification.
+     */
+    private fun createNotificationChannel() {
+        val name: CharSequence = getString(R.string.notification_channel_persistent_name)
+        val description = getString(R.string.notification_channel_persistent_desc)
+        val channel = NotificationChannel(CHANNEL_ID, name, NotificationManager.IMPORTANCE_LOW)
+        channel.description = description
+
+        val notificationManager = getSystemService(NotificationManager::class.java)
+        notificationManager.createNotificationChannel(channel)
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/chiller3/bcr/RecorderInCallService.kt b/app/src/main/java/com/chiller3/bcr/RecorderInCallService.kt
index 3e52f8e47..c5d55ec0b 100644
--- a/app/src/main/java/com/chiller3/bcr/RecorderInCallService.kt
+++ b/app/src/main/java/com/chiller3/bcr/RecorderInCallService.kt
@@ -1,8 +1,6 @@
 package com.chiller3.bcr
 
 import android.app.Notification
-import android.app.NotificationChannel
-import android.app.NotificationManager
 import android.app.PendingIntent
 import android.content.Intent
 import android.net.Uri
@@ -16,7 +14,6 @@ import android.util.Log
 class RecorderInCallService : InCallService(), RecorderThread.OnRecordingCompletedListener {
     companion object {
         private val TAG = RecorderInCallService::class.java.simpleName
-        private const val CHANNEL_ID = "persistent"
     }
 
     private val handler = Handler(Looper.getMainLooper())
@@ -42,11 +39,6 @@ class RecorderInCallService : InCallService(), RecorderThread.OnRecordingComplet
         }
     }
 
-    override fun onCreate() {
-        super.onCreate()
-        createNotificationChannel()
-    }
-
     override fun onCallAdded(call: Call) {
         super.onCallAdded(call)
         Log.d(TAG, "onCallAdded: $call")
@@ -114,19 +106,6 @@ class RecorderInCallService : InCallService(), RecorderThread.OnRecordingComplet
         }
     }
 
-    /**
-     * Create a low priority notification channel for the persistent notification.
-     */
-    private fun createNotificationChannel() {
-        val name: CharSequence = getString(R.string.notification_channel_persistent_name)
-        val description = getString(R.string.notification_channel_persistent_desc)
-        val channel = NotificationChannel(CHANNEL_ID, name, NotificationManager.IMPORTANCE_LOW)
-        channel.description = description
-
-        val notificationManager = getSystemService(NotificationManager::class.java)
-        notificationManager.createNotificationChannel(channel)
-    }
-
     /**
      * Create a persistent notification for use during recording. The notification appearance is
      * fully static and in progress call recording is represented by the presence or absence of the
@@ -137,7 +116,7 @@ class RecorderInCallService : InCallService(), RecorderThread.OnRecordingComplet
         val pendingIntent = PendingIntent.getActivity(
             this, 0, notificationIntent, PendingIntent.FLAG_IMMUTABLE
         )
-        val builder = Notification.Builder(this, CHANNEL_ID)
+        val builder = Notification.Builder(this, RecorderApplication.CHANNEL_ID)
         builder.setContentTitle(getText(R.string.recording_in_progress))
         builder.setSmallIcon(R.drawable.ic_launcher_foreground)
         builder.setContentIntent(pendingIntent)
diff --git a/app/src/main/java/com/chiller3/bcr/SettingsActivity.kt b/app/src/main/java/com/chiller3/bcr/SettingsActivity.kt
index 0d6958e6d..b86b157de 100644
--- a/app/src/main/java/com/chiller3/bcr/SettingsActivity.kt
+++ b/app/src/main/java/com/chiller3/bcr/SettingsActivity.kt
@@ -6,7 +6,6 @@ import android.net.Uri
 import android.os.Bundle
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
-import androidx.appcompat.widget.Toolbar
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.SwitchPreferenceCompat