Drupal Secure Full Version Update Guide with Composer + Drush (Complete Tutorial Composer is the officially recommended dependency management tool for Drupal, and Drush is a dedicated command-line tool for Drupal. The combination of the two enables secure and efficient updates of the Drupal core, modules, and themes to the latest stable versions. This tutorial applies to all Drupal 8/9/10/11 sites built with Composer.