# INotificationMessage.Version

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.eventsourcing/orleans.eventsourcing.common.inotificationmessage/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.eventsourcing/orleans.eventsourcing.common.inotificationmessage/properties/)

```csharp
public abstract int Version
```

The version number.