# GraphChanges

> The set of changes recorded on the graph during the current Graph.OnGraphChanged callback.

## Definition

* **Type:** Property
* **Namespace:** [Unity.GraphToolkit.Editor](/engine/6000.7/script-reference/unity/graphtoolkit/editor.md)
* **Assembly:** UnityEditor

```csharp
public GraphChanges GraphChanges { get; }
```

### Remarks

Inspect the collections on [GraphChanges](/engine/6000.7/script-reference/unity/graphtoolkit/editor/graphchanges.md) (nodes, variables, constant nodes, and subgraph nodes) to react to what was added, removed, or modified. Only valid inside [Graph.OnGraphChanged](/engine/6000.7/script-reference/unity/graphtoolkit/editor/graph/ongraphchanged.md).