Overview of security and maintenance concepts. Tasks on updating the core software, modules, and themes are covered. Part of the Drupal User Guide.
Overview of cron and how it is different from Unix cron.
How to run cron maintenance tasks using the core Automated Cron module, or by running them from outside the site.
Overview of security updates, how bugs are handled, and non-security updates.
How to secure a site by staying informed about the latest security updates.
How to update the core software using the administrative interface or Drush.
How to update a contributed module by using the administrative interface and running the Database updates script.
How to update a contributed theme by using the administrative interface and running the Database Updates script.