---
title: NSUpdatedObjectsKey
framework: coredata
role: symbol
role_heading: Global Variable
path: coredata/nsupdatedobjectskey
---

# NSUpdatedObjectsKey

A key for the set of objects that were updated.

## Declaration

```swift
let NSUpdatedObjectsKey: String
```

## See Also

### Managing notifications

- [didChangeObjectsNotification](coredata/nsmanagedobjectcontext/didchangeobjectsnotification.md)
- [NSManagedObjectContextObjectsDidChange](foundation/nsnotification/name-swift.struct/nsmanagedobjectcontextobjectsdidchange.md)
- [didSaveObjectsNotification](coredata/nsmanagedobjectcontext/didsaveobjectsnotification.md)
- [NSManagedObjectContextDidSave](foundation/nsnotification/name-swift.struct/nsmanagedobjectcontextdidsave.md)
- [willSaveObjectsNotification](coredata/nsmanagedobjectcontext/willsaveobjectsnotification.md)
- [NSManagedObjectContextWillSave](foundation/nsnotification/name-swift.struct/nsmanagedobjectcontextwillsave.md)
- [NSInsertedObjectsKey](coredata/nsinsertedobjectskey.md)
- [NSDeletedObjectsKey](coredata/nsdeletedobjectskey.md)
- [NSRefreshedObjectsKey](coredata/nsrefreshedobjectskey.md)
- [NSInvalidatedObjectsKey](coredata/nsinvalidatedobjectskey.md)
- [NSInvalidatedAllObjectsKey](coredata/nsinvalidatedallobjectskey.md)
- [didMergeChangesObjectIDsNotification](coredata/nsmanagedobjectcontext/didmergechangesobjectidsnotification.md)
- [didSaveObjectIDsNotification](coredata/nsmanagedobjectcontext/didsaveobjectidsnotification.md)
- [NSManagedObjectContext.NotificationKey](coredata/nsmanagedobjectcontext/notificationkey.md)