diff --git a/src/wp-includes/class-wp-block-pattern-categories-registry.php b/src/wp-includes/class-wp-block-pattern-categories-registry.php
index a346730b6b..44c07054d4 100644
--- a/src/wp-includes/class-wp-block-pattern-categories-registry.php
+++ b/src/wp-includes/class-wp-block-pattern-categories-registry.php
@@ -14,6 +14,7 @@ final class WP_Block_Pattern_Categories_Registry {
 	/**
 	 * Registered block pattern categories array.
 	 *
+	 * @since 5.5.0
 	 * @var array
 	 */
 	private $registered_categories = array();
@@ -21,6 +22,7 @@ final class WP_Block_Pattern_Categories_Registry {
 	/**
 	 * Container for the main instance of the class.
 	 *
+	 * @since 5.5.0
 	 * @var WP_Block_Pattern_Categories_Registry|null
 	 */
 	private static $instance = null;
diff --git a/src/wp-includes/class-wp-block-patterns-registry.php b/src/wp-includes/class-wp-block-patterns-registry.php
index 18554f8b04..95756de778 100644
--- a/src/wp-includes/class-wp-block-patterns-registry.php
+++ b/src/wp-includes/class-wp-block-patterns-registry.php
@@ -16,6 +16,7 @@ final class WP_Block_Patterns_Registry {
 	/**
 	 * Registered patterns array.
 	 *
+	 * @since 5.5.0
 	 * @var array
 	 */
 	private $registered_patterns = array();
@@ -23,6 +24,7 @@ final class WP_Block_Patterns_Registry {
 	/**
 	 * Container for the main instance of the class.
 	 *
+	 * @since 5.5.0
 	 * @var WP_Block_Patterns_Registry|null
 	 */
 	private static $instance = null;
diff --git a/src/wp-includes/class-wp-block-supports.php b/src/wp-includes/class-wp-block-supports.php
index 27da185a20..64d8e6b022 100644
--- a/src/wp-includes/class-wp-block-supports.php
+++ b/src/wp-includes/class-wp-block-supports.php
@@ -19,6 +19,7 @@ class WP_Block_Supports {
 	/**
 	 * Config.
 	 *
+	 * @since 5.6.0
 	 * @var array
 	 */
 	private $block_supports = array();
@@ -26,6 +27,7 @@ class WP_Block_Supports {
 	/**
 	 * Tracks the current block to be rendered.
 	 *
+	 * @since 5.6.0
 	 * @var array
 	 */
 	public static $block_to_render = null;
@@ -33,6 +35,7 @@ class WP_Block_Supports {
 	/**
 	 * Container for the main instance of the class.
 	 *
+	 * @since 5.6.0
 	 * @var WP_Block_Supports|null
 	 */
 	private static $instance = null;