13.1. Concept: Cron
Overview of cron and how it is different from Unix cron.
13.2. Configuring Cron Maintenance Tasks
How to run cron maintenance tasks using the core Automated Cron module, or by running them from outside the site.
13.3. Concept: Security and Regular Updates
Overview of security updates, how bugs are handled, and non-security updates.
13.4. Keeping Track of Updates
How to secure a site by staying informed about the latest security updates.
13.5. Updating the Core Software
How to update the core software using the administrative interface or Drush.
13.6. Updating a Module
How to update a contributed module by using the administrative interface and running the Database updates script.
13.7. Updating a Theme
How to update a contributed theme by using the administrative interface and running the Database Updates script.