diff --git a/wp-includes/media.php b/wp-includes/media.php
index 9a502b98b2..19c6ffa38a 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -801,7 +801,8 @@ function wp_get_attachment_image($attachment_id, $size = 'thumbnail', $icon = fa
 		 *
 		 * @param array        $attr       Attributes for the image markup.
 		 * @param WP_Post      $attachment Image attachment post.
-		 * @param string|array $size       Requested size.
+		 * @param string|array $size       Requested size. Image size or array of width and height values
+		 *                                 (in that order). Default 'thumbnail'.
 		 */
 		$attr = apply_filters( 'wp_get_attachment_image_attributes', $attr, $attachment, $size );
 		$attr = array_map( 'esc_attr', $attr );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 956ea049ae..d92d31bd98 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-35042';
+$wp_version = '4.4-alpha-35043';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.