# Advanced

- [Autoloading](/v2.2/advanced/autoloading.md)
- [Creating a Mail Driver](/v2.2/advanced/creating-a-mail-driver.md)
- [Creating Packages](/v2.2/advanced/creating-packages.md)
- [Database Seeding](/v2.2/advanced/database-seeding.md)
- [Extending Classes](/v2.2/advanced/extending-classes.md)
- [Middleware](/v2.2/advanced/middleware.md)
- [Responses](/v2.2/advanced/responses.md)
- [Sessions](/v2.2/advanced/sessions.md)
- [Status Codes](/v2.2/advanced/status-codes.md)
- [Validation](/v2.2/advanced/validation.md)