diff --git a/src/Api/ApiServiceProvider.php b/src/Api/ApiServiceProvider.php
index 4f3cfe37b..739a44dfc 100644
--- a/src/Api/ApiServiceProvider.php
+++ b/src/Api/ApiServiceProvider.php
@@ -13,7 +13,6 @@ use Flarum\Api\Controller\AbstractSerializeController;
 use Flarum\Api\Serializer\AbstractSerializer;
 use Flarum\Api\Serializer\BasicDiscussionSerializer;
 use Flarum\Api\Serializer\NotificationSerializer;
-use Flarum\Event\ConfigureNotificationTypes;
 use Flarum\Foundation\AbstractServiceProvider;
 use Flarum\Foundation\ErrorHandling\JsonApiFormatter;
 use Flarum\Foundation\ErrorHandling\Registry;
@@ -122,14 +121,8 @@ class ApiServiceProvider extends AbstractServiceProvider
      */
     protected function setNotificationSerializers()
     {
-        $blueprints = [];
         $serializers = $this->app->make('flarum.api.notification_serializers');
 
-        // Deprecated in beta 15, remove in beta 16
-        $this->app->make('events')->dispatch(
-            new ConfigureNotificationTypes($blueprints, $serializers)
-        );
-
         foreach ($serializers as $type => $serializer) {
             NotificationSerializer::setSubjectSerializer($type, $serializer);
         }
diff --git a/src/Event/ConfigureNotificationTypes.php b/src/Event/ConfigureNotificationTypes.php
deleted file mode 100644
index 89185b916..000000000
--- a/src/Event/ConfigureNotificationTypes.php
+++ /dev/null
@@ -1,58 +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;
-
-use Flarum\Notification\Blueprint\BlueprintInterface;
-use InvalidArgumentException;
-use ReflectionClass;
-
-/**
- * @deprecated in beta 15, removed in beta 16
- */
-class ConfigureNotificationTypes
-{
-    /**
-     * @var array
-     */
-    private $blueprints;
-
-    /**
-     * @var array
-     */
-    private $serializers;
-
-    /**
-     * @param array $blueprints
-     * @param array $serializers
-     */
-    public function __construct(array &$blueprints, array &$serializers = [])
-    {
-        $this->blueprints = &$blueprints;
-        $this->serializers = &$serializers;
-    }
-
-    /**
-     * @param string $blueprint
-     * @param string $serializer
-     * @param array $enabledByDefault
-     */
-    public function add($blueprint, $serializer, $enabledByDefault = [])
-    {
-        if (! (new ReflectionClass($blueprint))->implementsInterface(BlueprintInterface::class)) {
-            throw new InvalidArgumentException(
-                'Notification blueprint '.$blueprint.' must implement '.BlueprintInterface::class
-            );
-        }
-
-        $this->blueprints[$blueprint] = $enabledByDefault;
-
-        $this->serializers[$blueprint::getType()] = $serializer;
-    }
-}
diff --git a/src/Notification/Event/Sending.php b/src/Notification/Event/Sending.php
deleted file mode 100644
index 25858a2db..000000000
--- a/src/Notification/Event/Sending.php
+++ /dev/null
@@ -1,42 +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\Notification\Event;
-
-use Flarum\Notification\Blueprint\BlueprintInterface;
-
-/**
- * @deprecated in beta 15, removed in beta 16
- */
-class Sending
-{
-    /**
-     * The blueprint for the notification.
-     *
-     * @var BlueprintInterface
-     */
-    public $blueprint;
-
-    /**
-     * The users that the notification will be sent to.
-     *
-     * @var array|int[]
-     */
-    public $users;
-
-    /**
-     * @param \Flarum\Notification\Blueprint\BlueprintInterface $blueprint
-     * @param \Flarum\User\User[] $users
-     */
-    public function __construct(BlueprintInterface $blueprint, array &$users)
-    {
-        $this->blueprint = $blueprint;
-        $this->users = &$users;
-    }
-}
diff --git a/src/Notification/NotificationServiceProvider.php b/src/Notification/NotificationServiceProvider.php
index 7a169e1f6..b41be729d 100644
--- a/src/Notification/NotificationServiceProvider.php
+++ b/src/Notification/NotificationServiceProvider.php
@@ -9,7 +9,6 @@
 
 namespace Flarum\Notification;
 
-use Flarum\Event\ConfigureNotificationTypes;
 use Flarum\Foundation\AbstractServiceProvider;
 use Flarum\Notification\Blueprint\DiscussionRenamedBlueprint;
 
@@ -60,11 +59,6 @@ class NotificationServiceProvider extends AbstractServiceProvider
     {
         $blueprints = $this->app->make('flarum.notification.blueprints');
 
-        // Deprecated in beta 15, remove in beta 16
-        $this->app->make('events')->dispatch(
-            new ConfigureNotificationTypes($blueprints)
-        );
-
         foreach ($blueprints as $blueprint => $driversEnabledByDefault) {
             $this->addType($blueprint, $driversEnabledByDefault);
         }
diff --git a/src/Notification/NotificationSyncer.php b/src/Notification/NotificationSyncer.php
index 7e7a5c4ff..22072d941 100644
--- a/src/Notification/NotificationSyncer.php
+++ b/src/Notification/NotificationSyncer.php
@@ -11,7 +11,6 @@ namespace Flarum\Notification;
 
 use Flarum\Notification\Blueprint\BlueprintInterface;
 use Flarum\Notification\Driver\NotificationDriverInterface;
-use Flarum\Notification\Event\Sending;
 use Flarum\User\User;
 
 /**
@@ -110,11 +109,6 @@ class NotificationSyncer
         foreach (static::getNotificationDrivers() as $driverName => $driver) {
             $driver->send($blueprint, $newRecipients);
         }
-
-        if (count($newRecipients)) {
-            // Deprecated in beta 15, removed in beta 16
-            event(new Sending($blueprint, $newRecipients));
-        }
     }
 
     /**