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Core modules
- Announcements Feed module
- Automated Cron module
- BigPipe module
- Block module
- Breakpoint module
- CKEditor 5 module
- Comment module
- Configuration Manager module
- Configuration Translation module
- Content moderation module
- Content Translation module
- Contextual Links module
- Custom Block module
- Custom Menu Links module
- Database Logging module
- Datetime module
- Datetime range module
- Dynamic Page Cache module
- Field module
- Field UI module
- File module
- Filter module
- Help module
- HTTP Basic Authentication module
- Image module
- Inline Form Errors module
- Internal Page Cache module
- JSON:API module
- Layout Builder module
- Link module
- Media module
- Media Library module
- Menu UI module
- Migrate module
- Migrate Drupal module
- Migrate Drupal UI module
- MySQL module
- Node module
- Options module
- Path module
- PostgreSQL module
- Responsive Image module
- Password Compatibility module
- MySQLi module
- Navigation module
- Package Manager module
- RESTful Web Services module
- Search module
- Serialization module
- Settings Tray module
- Shortcut module
- SQLite module
- Syslog module
- System module
- Taxonomy module
- Telephone module
- Testing module
- Text Editor module
- Text module
- Toolbar module
- Update module
- User module
- Views module
- Views UI module
- Workflows module
System module
Documentation for the Drupal core System module.
System: cron and caching
The Drupal 8 core system module provides system-wide defaults for running cron jobs, caching, and other essential tasks.