+// If the upgrade hasn't run yet, assume link manager is used.
+add_filter( 'default_option_link_manager_enabled', '__return_true' );
+
+// This option no longer exists; tell plugins we always support auto-embedding.
+add_filter( 'default_option_embed_autourls', '__return_true' );
+
+// Default settings for heartbeat
+add_filter( 'heartbeat_settings', 'wp_heartbeat_settings' );
+
+// Check if the user is logged out
+add_action( 'admin_enqueue_scripts', 'wp_auth_check_load' );
+add_filter( 'heartbeat_received', 'wp_auth_check', 10, 2 );
+add_filter( 'heartbeat_nopriv_received', 'wp_auth_check', 10, 2 );
+