diff --git a/src/wp-includes/widgets/class-wp-widget-categories.php b/src/wp-includes/widgets/class-wp-widget-categories.php
index 0328d36639..ed293062de 100644
--- a/src/wp-includes/widgets/class-wp-widget-categories.php
+++ b/src/wp-includes/widgets/class-wp-widget-categories.php
@@ -11,6 +11,7 @@
  * Core class that implements a Categories widget.
  *
  * @since 2.8.0
+ * @since 4.4.0 Added support for other taxonomies.
  *
  * @see WP_Widget
  */