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  "title" : "Deprecated symbols"
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# Deprecated symbols

Review symbols that are no longer in active development, and their recommended replacements.

## Overview

Although these symbols are available for use, Apple is no longer actively developing them, and may remove them in a future release. Apple recommends moving away from these symbols and using their indicated replacements instead. Check the individual symbol pages for the recommended replacements.

## Topics

### Deprecated structures

[`struct FileDocumentConfiguration`](/documentation/SwiftUI/FileDocumentConfiguration)

The properties of an open file document.

[`struct FileDocumentReadConfiguration`](/documentation/SwiftUI/FileDocumentReadConfiguration)

The configuration for reading file contents.

[`struct FileDocumentWriteConfiguration`](/documentation/SwiftUI/FileDocumentWriteConfiguration)

The configuration for serializing file contents.

[`struct ReferenceFileDocumentConfiguration`](/documentation/SwiftUI/ReferenceFileDocumentConfiguration)

The properties of an open reference file document.

### Deprecated protocols

[`protocol FileDocument`](/documentation/SwiftUI/FileDocument)

A type that you use to serialize documents to and from file.

[`protocol ReferenceFileDocument`](/documentation/SwiftUI/ReferenceFileDocument)

A type that you use to serialize reference type documents to and from file.


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