* The default CSV export format for all objects now includes all available data. Additionally, the CSV headers now use human-friendly titles rather than the raw field names.
#### Custom Model Validation ([#5963](https://github.com/netbox-community/netbox/issues/5963))
This release introduces the [`CUSTOM_VALIDATORS`](../configuration/optional-settings.md#custom_validators) configuration parameter, which allows administrators to map NetBox models to custom validator classes to enforce custom validation logic. For example, the following configuration requires every site to have a name of at least ten characters and a description:
```python
from extras.validators import CustomValidator
CUSTOM_VALIDATORS = {
'dcim.site': (
CustomValidator({
'name': {
'min_length': 10,
},
'description': {
'required': True,
}
}),
)
}
```
CustomValidator can also be subclassed to enforce more complex logic by overriding its `validate()` method. See the [custom validation](../additional-features/custom-validation.md) documentation for more details.
