diff --git a/wp-admin/includes/class-wp-upgrader-skins.php b/wp-admin/includes/class-wp-upgrader-skins.php
deleted file mode 100644
index 8b2789da0c..0000000000
--- a/wp-admin/includes/class-wp-upgrader-skins.php
+++ /dev/null
@@ -1,41 +0,0 @@
-<?php
-/**
- * The User Interface "Skins" for the WordPress File Upgrader
- *
- * @package WordPress
- * @subpackage Upgrader
- * @since 2.8.0
- */
-
-/** WP_Upgrader_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader-skin.php';
-
-/** Plugin_Upgrader_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-plugin-upgrader-skin.php';
-
-/** Theme_Upgrader_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-theme-upgrader-skin.php';
-
-/** Bulk_Upgrader_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-bulk-upgrader-skin.php';
-
-/** Bulk_Plugin_Upgrader_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-bulk-plugin-upgrader-skin.php';
-
-/** Bulk_Theme_Upgrader_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-bulk-theme-upgrader-skin.php';
-
-/** Plugin_Installer_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-plugin-installer-skin.php';
-
-/** Theme_Installer_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-theme-installer-skin.php';
-
-/** Language_Pack_Upgrader_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-language-pack-upgrader-skin.php';
-
-/** Automatic_Upgrader_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-automatic-upgrader-skin.php';
-
-/** WP_Ajax_Upgrader_Skin class */
-require_once ABSPATH . 'wp-admin/includes/class-wp-ajax-upgrader-skin.php';
diff --git a/wp-admin/includes/update-core.php b/wp-admin/includes/update-core.php
index f6e83aff26..8866d09896 100644
--- a/wp-admin/includes/update-core.php
+++ b/wp-admin/includes/update-core.php
@@ -706,6 +706,7 @@ $_old_files = array(
 // 4.6
 'wp-admin/includes/class-wp-automatic-upgrader.php', // Wrong file name, see #37628.
 // 4.7
+'wp-admin/includes/class-wp-upgrader-skins.php',
 'wp-includes/class-feed.php',
 'wp-includes/locale.php',
 'wp-includes/session.php',
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 4d1501643a..716f127fc5 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38378';
+$wp_version = '4.7-alpha-38379';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.