# DevelopmentBuild

> Defines whether the output assembly is a development build.

## Definition

* **Type:** Field
* **Namespace:** [UnityEditor.Compilation](/engine/6000.6/script-reference/unityeditor/compilation.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
DevelopmentBuild = 2
```

### Remarks

Adds debug #define directives to assembly build.