diff --git a/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java b/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
index dbe09ab9a..5a0bafd8f 100644
--- a/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
+++ b/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
@@ -12,6 +12,7 @@ import android.util.Log;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatDelegate;
+import androidx.core.app.NotificationManagerCompat;
 import androidx.multidex.MultiDexApplication;
 import androidx.work.Constraints;
 import androidx.work.ExistingPeriodicWorkPolicy;
@@ -89,6 +90,12 @@ public class ApplicationContext extends MultiDexApplication {
     dcAccounts = new DcAccounts(new File(getFilesDir(), "accounts").getAbsolutePath());
     rpc = new Rpc(new FFITransport(dcAccounts.getJsonrpcInstance()));
     AccountManager.getInstance().migrateToDcAccounts(this);
+
+    // October-2025 migration: delete deprecated "permanent channel" id
+    NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
+    notificationManager.deleteNotificationChannel("dc_foreground_notification_ch");
+    // end October-2025 migration
+
     int[] allAccounts = dcAccounts.getAll();
     for (int accountId : allAccounts) {
       DcContext ac = dcAccounts.getAccount(accountId);
diff --git a/src/main/java/org/thoughtcrime/securesms/notifications/NotificationCenter.java b/src/main/java/org/thoughtcrime/securesms/notifications/NotificationCenter.java
index 4c96c1c2b..11ef6a130 100644
--- a/src/main/java/org/thoughtcrime/securesms/notifications/NotificationCenter.java
+++ b/src/main/java/org/thoughtcrime/securesms/notifications/NotificationCenter.java
@@ -241,7 +241,7 @@ public class NotificationCenter {
     // channelIds: CH_MSG_* are used here, the other ones from outside (defined here to have some overview)
     public static final String CH_MSG_PREFIX = "ch_msg";
     public static final String CH_MSG_VERSION = "5";
-    public static final String CH_PERMANENT = "dc_foreground_notification_ch";
+    public static final String CH_PERMANENT = "dc_fg_notification_ch";
     public static final String CH_GENERIC = "ch_generic";
     public static final String CH_CALLS_PREFIX = "call_chan";