Ticket #34661: 34661.diff

wp-admin/includes/class-wp-upgrader.php

@@ -553 +553 @@
                 $this->result = compact( 'source', 'source_files', 'destination', 'destination_name', 'local_destination', 'remote_destination', 'clear_destination' );
 
                 /**
+                 * Filter the destination after the installation has finished.
+                 *
+                 * @since 4.4.x
+                 *
+                 * @param array $result     Installation result data.
+                 * @param array $hook_extra Extra arguments passed to hooked filters.
+                 */
+                $this->result = apply_filters( 'upgrader_post_destination', $this->result, $args['hook_extra'] );
+
+                /**
                  * Filter the install response after the installation has finished.
                  *
                  * @since 2.8.0