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# fetchChanges

A capability for fetching only the changed records from a zone.

```
static var fetchChanges: CKRecordZone.Capabilities { get }
```

## Discussion

This capability makes the creation of offline caches more efficient. Instead of fetching the entire record every time, use [`CKFetchRecordZoneChangesOperation`](/documentation/CloudKit/CKFetchRecordZoneChangesOperation) to fetch only the changed values, and use the data it returns to update your cache. This minimizes the amount of data you receive from the server.

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