diff --git a/wp-admin/includes/update-core.php b/wp-admin/includes/update-core.php
index a378d3ce95..50ce6ddb93 100644
--- a/wp-admin/includes/update-core.php
+++ b/wp-admin/includes/update-core.php
@@ -705,6 +705,8 @@ $_old_files = array(
 'wp-includes/theme-compat/comments-popup.php',
 // 4.6
 'wp-admin/includes/class-wp-automatic-upgrader.php', // Wrong file name, see #37628.
+// 4.7
+'wp-includes/locale.php',
 );
 
 /**
diff --git a/wp-includes/l10n.php b/wp-includes/l10n.php
index 8ac67e421f..7bc1c6abdf 100644
--- a/wp-includes/l10n.php
+++ b/wp-includes/l10n.php
@@ -1132,3 +1132,17 @@ function wp_dropdown_languages( $args = array() ) {
 
 	return $output;
 }
+
+/**
+ * Checks if current locale is RTL.
+ *
+ * @since 3.0.0
+ *
+ * @global WP_Locale $wp_locale
+ *
+ * @return bool Whether locale is RTL.
+ */
+function is_rtl() {
+	global $wp_locale;
+	return $wp_locale->is_rtl();
+}
\ No newline at end of file
diff --git a/wp-includes/locale.php b/wp-includes/locale.php
deleted file mode 100644
index b8ad463721..0000000000
--- a/wp-includes/locale.php
+++ /dev/null
@@ -1,25 +0,0 @@
-<?php
-/**
- * Locale API
- *
- * @package WordPress
- * @subpackage i18n
- * @since 1.2.0
- */
-
-/** WP_Locale class */
-require_once ABSPATH . WPINC . '/class-wp-locale.php';
-
-/**
- * Checks if current locale is RTL.
- *
- * @since 3.0.0
- *
- * @global WP_Locale $wp_locale
- *
- * @return bool Whether locale is RTL.
- */
-function is_rtl() {
-	global $wp_locale;
-	return $wp_locale->is_rtl();
-}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 89ca71661b..e7263a0b57 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38363';
+$wp_version = '4.7-alpha-38364';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
diff --git a/wp-settings.php b/wp-settings.php
index bdf251c27b..2fa73c83af 100644
--- a/wp-settings.php
+++ b/wp-settings.php
@@ -213,6 +213,7 @@ require( ABSPATH . WPINC . '/rest-api.php' );
 require( ABSPATH . WPINC . '/rest-api/class-wp-rest-server.php' );
 require( ABSPATH . WPINC . '/rest-api/class-wp-rest-response.php' );
 require( ABSPATH . WPINC . '/rest-api/class-wp-rest-request.php' );
+require( ABSPATH . WPINC . '/class-wp-locale.php' );
 
 $GLOBALS['wp_embed'] = new WP_Embed();
 
@@ -373,9 +374,6 @@ if ( ( 0 === validate_file( $locale ) ) && is_readable( $locale_file ) )
 	require( $locale_file );
 unset( $locale_file );
 
-// Pull in locale data after loading text domain.
-require_once( ABSPATH . WPINC . '/locale.php' );
-
 /**
  * WordPress Locale object for loading locale domain date and various strings.
  * @global WP_Locale $wp_locale