# ClusterMembershipUpdate.ClusterMembershipUpdate(ClusterMembershipSnapshot, ImmutableArray<ClusterMember>)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.runtime.clustermembershipupdate/) | [Constructors](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.runtime.clustermembershipupdate/constructors/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Runtime/MembershipService/ClusterMembershipUpdate.cs#L17-L21)

```csharp
public ClusterMembershipUpdate(ClusterMembershipSnapshot snapshot, ImmutableArray<ClusterMember> changes)
```

Initializes a new instance of the [ClusterMembershipUpdate](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.runtime.clustermembershipupdate/) class.

### Parameters

- `snapshot` (`ClusterMembershipSnapshot`): The snapshot.
- `changes` (`ImmutableArray<ClusterMember>`): The changes.