> For the complete documentation index, see [llms.txt](https://docs.sentiance.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sentiance.com/sdk/api-reference/ios/event-timeline/eventtimelinedelegate.md).

# EventTimelineDelegate

## EventTimelineDelegate API

### `onEventTimelineUpdate()`

Receives updated timeline events.

```swift
@objc func onEventTimelineUpdate(event: SENTTimelineEvent)
```

### `onProvisionalAwareEventTimelineUpdate()`

Receives updated timeline events that may include provisional events. See [isProvisional](/sdk/api-reference/ios/event-timeline/senttimelineevent.md).

```swift
@objc optional func onProvisionalAwareEventTimelineUpdate(event: SENTTimelineEvent)
```