# deprecated

{% hint style="info" %}
#### Experimental Feature

This configuration entry is related to an Experimental (Optional) feature called Deprecated Tag. Before you start to configure this section, make sure to read the page specific for this feature (accessible [here](../../optional-features/schema-improvements/deprecated-tag)) and [this](../../concepts/experimental-features) page that explains how to enable Experimental Features.
{% endhint %}

### Type: [Map](../types-and-objects/map)<[FileModelColumn](../types-and-objects/file-model-column), string>

<details>

<summary>Versioning History</summary>

**API Version v2.0.0** - Introduced `deprecated` configuration option.

</details>

Mark fields as deprecated. The key of this value is the field that will be deprecated and the value of this value is the message that will be appended to `@deprecated`. To deprecate a field, add the following lines to your configuration file:

{% code title="prisma-util.config.mjs" %}
```javascript
export default {
    // Other configuration lines
    deprecated: {
        "file:Model.column": "This field has been deprecated"
    }
};
```
{% endcode %}
