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# indexDidUpdateNotification

The notification the delegate posts after Spotlight updates the index.

```
static let indexDidUpdateNotification: Notification.Name
```

## Discussion

The notification’s `userInfo` dictionary contains the keys [`NSStoreUUIDKey`](/documentation/CoreData/NSStoreUUIDKey) and [`NSPersistentHistoryTokenKey`](/documentation/CoreData/NSPersistentHistoryTokenKey).

---

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