# Refresh()

> Updates the BuildHistory incrementally, detecting build directories that have been added or removed on disk.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.Build](/engine/6000.7/script-reference/unityeditor/build.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public static void Refresh()
```

### Remarks

This is useful when build folders have been added or removed externally, such as when downloading additional builds. Existing cached build metadata is assumed to be unchanged. Use [BuildHistory.RefreshFull](/engine/6000.7/script-reference/unityeditor/build/buildhistory/refreshfull.md) to force a complete reload.