# None

> The default behavior. Unity will only recompile scripts that have changed, or that need recompiling due to changes in settings that affect script compilation.

## Definition

* **Type:** Field
* **Namespace:** [UnityEditor.Compilation](/engine/6000.5/script-reference/unityeditor/compilation.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
None = 0
```