# DidChange(uint, uint)

> Test whether two version numbers indicate that a change has occurred.

## Definition

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

```csharp
public static bool DidChange(uint changeVersion, uint requiredVersion)
```

### Parameters

**** (\[uint]\(https\://learn.microsoft.com/dotnet/api/system.uint32)): The newer/current version number**** (\[uint]\(https\://learn.microsoft.com/dotnet/api/system.uint32)): The previous version number.

### Returns

| Type                                                          | Description                                                                                 |
| ------------------------------------------------------------- | ------------------------------------------------------------------------------------------- |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | True if `changeVersion` is greater than `requiredVersion`, or if `requiredVersion` is zero. |