diff --git a/wp-includes/rest-api.php b/wp-includes/rest-api.php
index cc600789f0..f5b91807fe 100644
--- a/wp-includes/rest-api.php
+++ b/wp-includes/rest-api.php
@@ -1227,6 +1227,13 @@ function rest_get_avatar_sizes() {
  * Validate a value based on a schema.
  *
  * @since 4.7.0
+ * @since 4.9.0 Support the "object" type.
+ * @since 5.2.0 Support validating "additionalProperties" against a schema.
+ * @since 5.3.0 Support multiple types.
+ * @since 5.4.0 Convert an empty string to an empty object.
+ * @since 5.5.0 Add the "uuid" and "hex-color" formats.
+ *              Support the "minLength", "maxLength" and "pattern" keywords for strings.
+ * 				Validate required properties.
  *
  * @param mixed  $value The value to validate.
  * @param array  $args  Schema array to use for validation.
diff --git a/wp-includes/version.php b/wp-includes/version.php
index f4866c9dee..e774d807a9 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-alpha-47810';
+$wp_version = '5.5-alpha-47811';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.