# BatchedNotificationMessage.Version

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

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.EventSourcing/Common/NotificationMessage.cs#L45)

```csharp
public int Version
```

The version number - for a batch, this is the maximum version contained.