diff --git a/wp-includes/media.php b/wp-includes/media.php
index c1dc3886f7..5aef552a3c 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -5056,9 +5056,10 @@ function wp_getimagesize( $filename, array &$image_info = null ) {
  *     An array of WebP image information.
  *
  *     @type array $size {
- *         @type int  $width  Image width.
- *         @type int  $height Image height.
- *         @type bool $type   The WebP type: one of 'lossy', 'lossless' or 'animated-alpha'.
+ *         @type int|false    $width  Image width on success, false on failure.
+ *         @type int|false    $height Image height on success, false on failure.
+ *         @type string|false $type   The WebP type: one of 'lossy', 'lossless' or 'animated-alpha'.
+ *                                    False on failure.
  *     }
  */
 function wp_get_webp_info( $filename ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 73e2319165..5746151c0c 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.8-alpha-50819';
+$wp_version = '5.8-alpha-50820';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.