diff --git a/wp-includes/post.php b/wp-includes/post.php
index 72ffc8dc37..9e2efe8f34 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -3005,6 +3005,8 @@ function wp_get_recent_posts( $args = array(), $output = ARRAY_A ) {
  *     @type int    $menu_order            The order the post should be displayed in. Default 0.
  *     @type string $post_mime_type        The mime type of the post. Default empty.
  *     @type string $guid                  Global Unique ID for referencing the post. Default empty.
+ *     @type array  $post_category         Array of category names, slugs, or IDs.
+ *                                         Defaults to value of the 'default_category' option.
  *     @type array  $tax_input             Array of taxonomy terms keyed by their taxonomy name. Default empty.
  *     @type array  $meta_input            Array of post meta values keyed by their post meta key. Default empty.
  * }
diff --git a/wp-includes/version.php b/wp-includes/version.php
index da7d4a328f..81b96e4c24 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-alpha-37254';
+$wp_version = '4.6-alpha-37255';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.