# PlacementTarget.InterfaceVersion

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.runtime.placement.placementtarget/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.runtime.placement.placementtarget/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Placement/PlacementTarget.cs#L38)

```csharp
public ushort InterfaceVersion
```

Gets the interface version being requested.