---
title: NSCoreDataCoreSpotlightDelegate.IndexDidUpdateMessage
framework: coredata
role: symbol
role_heading: Structure
path: coredata/nscoredatacorespotlightdelegate/indexdidupdatemessage
---

# NSCoreDataCoreSpotlightDelegate.IndexDidUpdateMessage

Posted when the Core Spotlight index is updated on a private queue.

## Declaration

```swift
struct IndexDidUpdateMessage
```

## Topics

### Instance Properties

- [historyToken](coredata/nscoredatacorespotlightdelegate/indexdidupdatemessage/historytoken.md)
- [storeUUID](coredata/nscoredatacorespotlightdelegate/indexdidupdatemessage/storeuuid.md)

## Relationships

### Conforms To

- [NotificationCenter.AsyncMessage](foundation/notificationcenter/asyncmessage.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)