# INotificationMessage Properties

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

## Version {#version-8a51e424}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.eventsourcing/orleans.eventsourcing.common.inotificationmessage/properties/version-8a51e424/)

```csharp
public abstract int Version
```

The version number.