diff --git a/wp-admin/includes/meta-boxes.php b/wp-admin/includes/meta-boxes.php
index 753fb056d2..89e17671c9 100644
--- a/wp-admin/includes/meta-boxes.php
+++ b/wp-admin/includes/meta-boxes.php
@@ -13,7 +13,7 @@
  * @param array    $args {
  *     Array of arguments for building the post submit meta box.
  *
- *     @type string   $id       Meta box ID.
+ *     @type string   $id       Meta box 'id' attribute.
  *     @type string   $title    Meta box title.
  *     @type callable $callback Meta box display callback.
  *     @type array    $args     Extra meta box arguments.
@@ -353,7 +353,7 @@ function attachment_submit_meta_box( $post ) {
  * @param array   $box {
  *     Post formats meta box arguments.
  *
- *     @type string   $id       Meta box ID.
+ *     @type string   $id       Meta box 'id' attribute.
  *     @type string   $title    Meta box title.
  *     @type callable $callback Meta box display callback.
  *     @type array    $args     Extra meta box arguments.
@@ -394,7 +394,7 @@ function post_format_meta_box( $post, $box ) {
  * @param array   $box {
  *     Tags meta box arguments.
  *
- *     @type string   $id       Meta box ID.
+ *     @type string   $id       Meta box 'id' attribute.
  *     @type string   $title    Meta box title.
  *     @type callable $callback Meta box display callback.
  *     @type array    $args {
@@ -455,7 +455,7 @@ function post_tags_meta_box( $post, $box ) {
  * @param array   $box {
  *     Categories meta box arguments.
  *
- *     @type string   $id       Meta box ID.
+ *     @type string   $id       Meta box 'id' attribute.
  *     @type string   $title    Meta box title.
  *     @type callable $callback Meta box display callback.
  *     @type array    $args {
diff --git a/wp-admin/includes/nav-menu.php b/wp-admin/includes/nav-menu.php
index aa5636ba95..9b0a7bc266 100644
--- a/wp-admin/includes/nav-menu.php
+++ b/wp-admin/includes/nav-menu.php
@@ -300,7 +300,7 @@ function wp_nav_menu_item_link_meta_box() {
  * @param array  $box {
  *     Post type menu item meta box arguments.
  *
- *     @type string       $id       Meta box ID (used in the 'id' attribute for the meta box).
+ *     @type string       $id       Meta box 'id' attribute.
  *     @type string       $title    Meta box title.
  *     @type string       $callback Meta box display callback.
  *     @type WP_Post_Type $args     Extra meta box arguments (the post type object for this meta box).
@@ -587,7 +587,7 @@ function wp_nav_menu_item_post_type_meta_box( $object, $box ) {
  * @param array  $box {
  *     Data that will be used as arguments of the taxonomy meta box.
  *
- *     @type string $id       Meta box ID (used in the 'id' attribute for the meta box).
+ *     @type string $id       Meta box 'id' attribute.
  *     @type string $title    Meta box title.
  *     @type string $callback Meta box display callback.
  *     @type object $args     Extra meta box arguments (the taxonomy object for this meta box).
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 51b3585493..8bc213f9ff 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-beta4-38130';
+$wp_version = '4.6-beta4-38131';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.