diff --git a/framework/core/src/Event/ConfigurePostTypes.php b/framework/core/src/Event/ConfigurePostTypes.php
deleted file mode 100644
index 768db2b48..000000000
--- a/framework/core/src/Event/ConfigurePostTypes.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * For detailed copyright and license information, please view the
- * LICENSE file that was distributed with this source code.
- */
-
-namespace Flarum\Event;
-
-/**
- * @deprecated in beta 15, remove in beta 16. Use the Post extender instead.
- */
-class ConfigurePostTypes
-{
-    private $models;
-
-    public function __construct(array &$models)
-    {
-        $this->models = &$models;
-    }
-
-    public function add($class)
-    {
-        $this->models[] = $class;
-    }
-}
diff --git a/framework/core/src/Post/PostServiceProvider.php b/framework/core/src/Post/PostServiceProvider.php
index 795d9ab13..e6e728cd6 100644
--- a/framework/core/src/Post/PostServiceProvider.php
+++ b/framework/core/src/Post/PostServiceProvider.php
@@ -10,7 +10,6 @@
 namespace Flarum\Post;
 
 use DateTime;
-use Flarum\Event\ConfigurePostTypes;
 use Flarum\Foundation\AbstractServiceProvider;
 use Flarum\Post\Access\ScopePostVisibility;
 
@@ -61,11 +60,6 @@ class PostServiceProvider extends AbstractServiceProvider
             DiscussionRenamedPost::class
         ];
 
-        // Deprecated in beta 15, remove in beta 16.
-        $this->app->make('events')->dispatch(
-            new ConfigurePostTypes($models)
-        );
-
         foreach ($models as $model) {
             Post::setModel($model::$type, $model);
         }