# IQueueCache.UpdateDeliveryProgress(StreamSequenceToken?, DateTime)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.iqueuecache/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.iqueuecache/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Streaming/QueueAdapters/IQueueCache.cs#L46)

```csharp
public virtual void UpdateDeliveryProgress(StreamSequenceToken? earliestSubscriptionToken, DateTime utcNow)
```

Updates the cache with the current delivery progress of all active subscriptions.

### Parameters

- `earliestSubscriptionToken` (`StreamSequenceToken?`): The earliest last processed sequence token across registered subscriptions. A `null` value indicates that there are no active subscriptions. The token is only valid for the duration of the call and must not be stored.
- `utcNow` (`DateTime`): The current UTC time.