diff --git a/wp-includes/class-wp-ajax-response.php b/wp-includes/class-wp-ajax-response.php
index 42f30ad030..1c6d8a834c 100644
--- a/wp-includes/class-wp-ajax-response.php
+++ b/wp-includes/class-wp-ajax-response.php
@@ -11,9 +11,8 @@ class WP_Ajax_Response {
 	 *
 	 * @since 2.1.0
 	 * @var array
-	 * @access private
 	 */
-	private $responses = array();
+	public $responses = array();
 
 	/**
 	 * Constructor - Passes args to {@link WP_Ajax_Response::add()}.
@@ -28,58 +27,6 @@ class WP_Ajax_Response {
 			$this->add($args);
 	}
 
-	/**
-	 * Make private properties readable for backwards compatibility.
-	 *
-	 * @since 4.0.0
-	 * @access public
-	 *
-	 * @param string $name Property to get.
-	 * @return mixed Property.
-	 */
-	public function __get( $name ) {
-		return $this->$name;
-	}
-
-	/**
-	 * Make private properties settable for backwards compatibility.
-	 *
-	 * @since 4.0.0
-	 * @access public
-	 *
-	 * @param string $name  Property to set.
-	 * @param mixed  $value Property value.
-	 * @return mixed Newly-set property.
-	 */
-	public function __set( $name, $value ) {
-		return $this->$name = $value;
-	}
-
-	/**
-	 * Make private properties checkable for backwards compatibility.
-	 *
-	 * @since 4.0.0
-	 * @access public
-	 *
-	 * @param string $name Property to check if set.
-	 * @return bool Whether the property is set.
-	 */
-	public function __isset( $name ) {
-		return isset( $this->$name );
-	}
-
-	/**
-	 * Make private properties un-settable for backwards compatibility.
-	 *
-	 * @since 4.0.0
-	 * @access public
-	 *
-	 * @param string $name Property to unset.
-	 */
-	public function __unset( $name ) {
-		unset( $this->$name );
-	}
-
 	/**
 	 * Append to XML response based on given arguments.
 	 *
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 50e834c6dc..8fd368fbaf 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31138';
+$wp_version = '4.2-alpha-31139';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.