diff --git a/wp-admin/includes/ajax-actions.php b/wp-admin/includes/ajax-actions.php
index 091cc5febb..754b869cc7 100644
--- a/wp-admin/includes/ajax-actions.php
+++ b/wp-admin/includes/ajax-actions.php
@@ -11,7 +11,7 @@
 //
 
 /**
- * Ajax handler for the (experimental) Heartbeat API in
+ * Ajax handler for the Heartbeat API in
  * the no-privilege context.
  *
  * Runs when the user is not logged in.
@@ -2353,7 +2353,7 @@ function wp_ajax_send_link_to_editor() {
 }
 
 /**
- * Ajax handler for the (experimental) Heartbeat API.
+ * Ajax handler for the Heartbeat API.
  *
  * Runs when the user is logged in.
  *
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 61cea8b307..cf90cf2d71 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.0-alpha-20140627';
+$wp_version = '4.0-alpha-20140628';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.