<!--
{
  "availability" : [
    "iOS: 11.0.0 -",
    "iPadOS: 11.0.0 -",
    "macCatalyst: 13.1.0 -",
    "macOS: 10.13.0 -",
    "tvOS: 11.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 4.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreData",
  "identifier" : "/documentation/CoreData/NSPersistentHistoryTransaction/author",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "Core Data"
    ],
    "preciseIdentifier" : "c:objc(cs)NSPersistentHistoryTransaction(py)author"
  },
  "title" : "author"
}
-->

# author

A granular description of the context that made the persistent history change, if available.

```
var author: String? { get }
```

## Discussion

This property has a value if the managed object context set a [`transactionAuthor`](/documentation/CoreData/NSManagedObjectContext/transactionAuthor) before the save.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)