# Upgrade(VisualTreeAsset)

> Apply the upgrade to the asset.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.UIElements](/engine/6000.5/script-reference/unityeditor/uielements.md)
* **Assembly:** UnityEditor

```csharp
bool Upgrade(VisualTreeAsset asset)
```

### Parameters

**** (\[VisualTreeAsset]\(/engine/6000.5/script-reference/unityengine/uielements/visualtreeasset)): The [VisualTreeAsset](/engine/6000.5/script-reference/unityengine/uielements/visualtreeasset.md) to upgrade.

### Returns

| Type                                                          | Description                             |
| ------------------------------------------------------------- | --------------------------------------- |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | True if changes were made to the asset. |