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XcodeRN

History of Xcode Beta Release Notes

Xcode 12.3 Release Notes

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

Overview

Xcode 12.3 includes SDKs for iOS 14.3, iPadOS 14.3, tvOS 14.3, watchOS 7.2, and macOS Big Sur 11.1. The Xcode 12.3 release supports on-device debugging for iOS 9 and later, tvOS 9 and later, and watchOS 2 and later. Xcode 12.3 requires a Mac with Apple silicon running macOS Big Sur 11 or later, or an Intel-based Mac running macOS Catalina 10.15.4 or later.

General

Resolved Issues

Known Issues

Build System

Resolved Issues

Devices

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Documentation Viewer

Resolved Issues

Interface Builder

Resolved Issues

SceneKit

Known Issues

Simulator

New Features

Resolved Issues

Known Issues

Swift

Resolved Issues