# Unmanaged A type for propagating an unmanaged object reference. ``` @frozen struct Unmanaged where Instance : AnyObject ``` ## Overview When you use this type, you become partially responsible for keeping the object alive. ## Relationships ### Conforms To [`Escapable`](/documentation/Swift/Escapable) [`Sendable`](/documentation/Swift/Sendable) [`AtomicRepresentable`](/documentation/Synchronization/AtomicRepresentable) [`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable) [`AtomicOptionalRepresentable`](/documentation/Synchronization/AtomicOptionalRepresentable) [`Copyable`](/documentation/Swift/Copyable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) --- Copyright © 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)