# AddChangedVersionFilter(ComponentType)

> Filters out entities in chunks for which the specified component has not changed. Additive with other filter functions.

## Definition

* **Type:** Method
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

```csharp
public void AddChangedVersionFilter(ComponentType componentType)
```

### Parameters

**** (\[ComponentType]\(/engine/7000.0/script-reference/unity/entities/componenttype)): ComponentType to mark as changed on this EntityQuery's filter.

### Remarks

Saves a given ComponentType's index in RequiredComponents in this group's Changed filter.