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# Xcode 13.3.1 Release Notes

Update your apps to use new features, and test your apps against API changes.

## Discussion

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## Overview

Xcode 13.3.1 includes SDKs for iOS 15.4, iPadOS 15.4, tvOS 15.4, watchOS 8.5, and macOS Monterey 12.3.
The Xcode 13.3.1 release supports on-device debugging for iOS 15.4, iPadOS 15.4, tvOS 15.4, watchOS 8.5 and later.
Xcode 13.3.1 requires a Mac running macOS Monterey 12 or later.

### Apple Clang Compiler

#### Resolved Issues

- Fixed: Exporting an app that uses Swift’s concurrency features from an archive with bitcode might fail when the app targets iOS 13.0–14.7, watchOS 6.0–7.6, or tvOS 13.0–14.7. (89271047)
- When you target iOS 13.4 and later and enable bitcode, the bitcode segment is now stripped correctly. This fixes a crash that prevented some apps from running in older operating systems (iOS 14 and earlier). (90024354) (FB9951126)

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