Added update listener file..

app/Listeners/Update/V30/Version3016.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Listeners\Update\V30;
+
+use App\Abstracts\Listeners\Update as Listener;
+use App\Events\Install\UpdateFinished as Event;
+use Illuminate\Support\Facades\Artisan;
+use Illuminate\Support\Facades\Log;
+
+class Version3016 extends Listener
+{
+    const ALIAS = 'core';
+
+    const VERSION = '3.0.16';
+
+    /**
+     * Handle the event.
+     *
+     * @param  $event
+     * @return void
+     */
+    public function handle(Event $event)
+    {
+        if ($this->skipThisUpdate($event)) {
+            return;
+        }
+
+        Log::channel('stdout')->info('Updating to 3.0.16 version...');
+
+        $this->updateDatabase();
+
+        Log::channel('stdout')->info('Done!');
+    }
+
+    public function updateDatabase(): void
+    {
+        Log::channel('stdout')->info('Updating database...');
+
+        Artisan::call('migrate', ['--force' => true]);
+
+        Log::channel('stdout')->info('Database updated.');
+    }
+}