diff --git a/wp-includes/class-wp-customize-control.php b/wp-includes/class-wp-customize-control.php
index 8308f4ae18..3c8a71e451 100644
--- a/wp-includes/class-wp-customize-control.php
+++ b/wp-includes/class-wp-customize-control.php
@@ -645,8 +645,31 @@ class WP_Customize_Color_Control extends WP_Customize_Control {
  * @see WP_Customize_Control
  */
 class WP_Customize_Media_Control extends WP_Customize_Control {
-	public $type          = 'media';
-	public $mime_type     = '';
+	/**
+	 * Control type.
+	 *
+	 * @since 4.2.0
+	 * @access public
+	 * @var string
+	 */
+	public $type = 'media';
+
+	/**
+	 * Media control mime type.
+	 *
+	 * @since 4.2.0
+	 * @access public
+	 * @var string
+	 */
+	public $mime_type = '';
+
+	/**
+	 * Button labels.
+	 *
+	 * @since 4.2.0
+	 * @access public
+	 * @var array
+	 */
 	public $button_labels = array();
 
 	/**
@@ -687,7 +710,7 @@ class WP_Customize_Media_Control extends WP_Customize_Control {
 	 * @since 3.4.0
 	 * @since 4.2.0 Moved from WP_Customize_Upload_Control.
 	 *
-	 * @uses WP_Customize_Control::to_json()
+	 * @see WP_Customize_Control::to_json()
 	 */
 	public function to_json() {
 		parent::to_json();
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 066df5d73e..2bb4ae42e8 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-beta4-32022';
+$wp_version = '4.2-beta4-32023';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.