Xcode 10.3

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  1. Xcode 10.3 Release Date
  2. Xcode 10.3 Download For Mac

7/10 (43 votes) - Download Xcode Mac Free. Download Xcode for free to develop your own applications for Mac OS X and iOS. Xcode is an integrated development environment (IDE) for Apple computers. Xcode is an integrated development environment (IDE) that offers developers all the tools necessary.

  • Xcode 10 is not officially supported on Big Sur. Apple is not going to fix Xcode 10 bugs now that Xcode 12 is out. Install an older version of macOS on a virtual machine and install Xcode 10.3 on that virtual machine if you need to use Xcode 10.3.
  • Xcode 10.3 (10G8) (App Store) Mojave 10.14.5 (18F132) Problem: No Simulators appear in the active Scheme popup menu. The Simulators were available and working in Xcode 10.2.1. The Download Simulators window informs me that iOS 10.3.1 is the current Simulator and that the latest iOS Simulator available for download is iOS 12.2.
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System Requirements | What's New | Known Issues | Blogs | Open Source

To see installation instructions for both Visual Studio for Mac and Visual Studio 2019, please visit http://releases.xamarin.com/

Requirements

  • The latest features and APIs requires Xcode 10.2 (or 10.3) and the bundled iOS, tvOS and watchOS SDKs
  • Apple Xcode 10.2/10.3 requires a Mac running macOS 10.14.3 (Mojave) or newer

What's New in this Release

Release History

This version of Xamarin.iOS corresponds to our 16.3 (d16-3) milestone.

  • September 12, 2019 - Xamarin.iOS 12.16.1.24
  • September 3, 2019 - Xamarin.iOS 12.16.1.17
  • August 12, 2019 - Xamarin.iOS 12.16.1.9
  • July 23, 2019 - Xamarin.iOS 12.16.0.5
Xcode 10.3

You can learn more about how we ship our releases in the Visual Studio 2019 Release Rhythm document.

September 12, 2019 - Xamarin.iOS 12.16.1.24

This version is included in Visual Studio for Mac 8.3 preview 4.

Enhancements:

  • 6927 - Support notarization of Xamarin.iOS package.

September 3, 2019 - Xamarin.iOS 12.16.1.17

This version is included in Visual Studio for Mac 8.3 preview 3.

Bugs:

  • 6742 - [linker] Always preserve INativeObject (interface) on typesRecent versions of the linker can remove unused interfaces from types. This optimization is only done when the type is not instantiated. However our tools and runtime requires knowing if a type represent a native object, using INativeObject even if the code that creates such instance is not marked.

August 12, 2019 - Xamarin.iOS 12.16.1.9

This version is included in Visual Studio for Mac 8.3 preview 2.

Enhancements:

  • 6195 - [CFNetwork] Expose methods that were ignored until the dependencies were present

Bugs:

  • 6654 - [AddressBook] Make ABRecord non-abstract

July 23, 2019 - Xamarin.iOS 12.16.0.5

This version is included in Visual Studio for Mac 8.3 preview 1.

Enhancements:

  • 6477 - [httpclient] Change NSUrlSessionHandler and CFNetworkHandler to throw HttpRequestException. Fix #6439
  • 6458 - [msbuild] $(ProduceReferenceAssembly) support
  • 6416 - [uikit] Add some advice to UISearchController's constructors Community Contribution ❤️
  • 5965 - [mtouch] Support and use the partial static registrar when using the dynamic registrar on device.
  • 6005 - [runtime] Implement support for an arm64 dynamic registrar.
  • 6003 - [generator] Show proper errors when failing to compile
  • 6059 - [foundation] Expose AllowsCellularAccess on NSUrlSessionHandler
  • 6098 - [msbuild] Add non-UI version of com.apple.AudioUnit-UI in lists
  • 6394 - Add a new feature flag that indicates stable support for the Concurrent GC. Partial fix of #5909.

Bugs:

  • 6514 - [registar] Search the entire interface hierarchy for protocols. Fixes #6493.
  • 5989 - [runtime] Fix crash in the x86_64 dynamic registrar.
  • 5986 - [registrar] Fix marshalling of structs with a single member.
  • 6090 - [CFUrl] Fix leaks of CFUrl instances.
  • 6096 - [mac] Add NSSegmentedCell.SetTooltip NullAllowed
  • 6091 - [CoreFoundation] Fix ownership of objects returned from CFHTTPMessageCreate* P/Invokes.
  • 6107 - [mmp] Ignore, by default, frameworks that cause rejection from App Store. Fix #6039.
  • 6135 - [generator] Fix generation of ReturnRelease code for third-party bindings.
  • 6147 - [Metal] Obsolete and fix MTLDevice.CreateBufferNoCopy.
  • 6159 - [Metal] Sprinkle [return: Release] on all 'new*' selectors. Fixes #5941.
  • 6171 - [generator] Forward more [return: Release] attributes to generated code.
  • 6230 - [foundation] Fix NSCopying.Copy - the biggest offender of not releasing its return value
  • 6519 - [Generator] NSValueReturnMap is registering CATransform3D on HaveCoreMedia instead of HaveCoreAnimation.

Known Issues

Using an older Xcode version

Using an older Xcode version (than the one mentioned in the above requirements) is often possible. For more information see the following documentation.

API Diff

The following documents contains a complete list of the API changes since the Xamarin.iOS 12.14 stable release:

Integrated Mono Features/Fixes

Xamarin.iOS uses a customized runtime and base class libraries (BCL) fromMono 6.4Commit 6434153

Feedback

Your feedback is important to us. If there are any problems with this release, check the Xamarin.iOS Forums and Xamarin Mac/iOS Github Repository for existing issues. If you do not find any matching issue, please feel free to start a new discussion and report an issue.

Open Source

Xamarin.iOS is based on the following open-source repositories:

  • xamarin-macios branch d16-3
  • mono branch 2019-06

Contributors

Xcode 10.3 Release Date

A big Thank You! to external contributors who made improvements in this release:

With an all-new design that looks great on macOS Big Sur, Xcode 12 has customizable font sizes for the navigator, streamlined code completion, and new document tabs. Xcode 12 builds Universal apps by default to support Mac with Apple Silicon, often without changing a single line of code.

Designed for macOS Big Sur.

Xcode 12 looks great on macOS Big Sur, with a navigator sidebar that goes to the top of the window and clear new toolbar buttons. The navigator defaults to a larger font that’s easier to read, while giving you multiple size choices. New document tabs make it easy to create a working set of files within your workspace.

Document tabs.

The new tab model lets you open a new tab with a double-click, or track the selected file as you click around the navigator. You can re-arrange the document tabs to create a working set of files for your current task, and configure how content is shown within each tab. The navigator tracks the open files within your tabs using strong selection.

Xcode 10.3 Download For Mac

Navigator font sizes.

The navigator now tracks the system setting for “Sidebar icon size” used in Finder and Mail. You can also choose a unique font size just for Xcode within Preferences, including the traditional dense information presentation, and up to large fonts and icon targets.

Code completion streamlined.

A new completion UI presents only the information you need, taking up less screen space as you type. And completions are presented much faster, so you can keep coding at maximum speed.

Redesigned organizer.

An all-new design groups all critical information about each of your apps together in one place. Choose any app from any of your teams, then quickly navigate to inspect crash logs, energy reports, and performance metrics, such as battery consumption and launch time of your apps when used by customers.

Xcode 10.3

SwiftUI

SwiftUI offers new features, improved performance, and the power to do even more, all while maintaining a stable API that makes it easy to bring your existing SwiftUI code forward into Xcode 12. A brand new life cycle management API for apps built with SwiftUI lets you write your entire app in SwiftUI and share even more code across all Apple platforms. And a new widget platform built on SwiftUI lets you build widgets that work great on iPad, iPhone, and Mac. Your SwiftUI views can now be shared with other developers, and appear as first-class controls in the Xcode library. And your existing SwiftUI code continues to work, while providing faster performance, better diagnostics, and access to new controls.

Universal app ready.

Xcode 12 is built as a Universal app that runs 100% natively on Intel-based CPUs and Apple Silicon for great performance and a snappy interface.* It also includes a unified macOS SDK that includes all the frameworks, compilers, debuggers, and other tools you need to build apps that run natively on Apple Silicon and the Intel x86_64 CPU.

Updated automatically

When you open your project in Xcode 12, your app is automatically updated to produce release builds and archives as Universal apps. When you build your app, Xcode produces one binary “slice” for Apple Silicon and one for the Intel x86_64 CPU, then wraps them together as a single app bundle to share or submit to the Mac App Store. You can test this at any time by selecting “Any Mac” as the target in the toolbar.

Test multiple architectures.

On the new Mac with Apple Silicon, you can run and debug apps running on either the native architecture or on Intel virtualization by selecting “My Mac (Rosetta)” in the toolbar.

Multiplatform template

New multiplatform app templates set up new projects to easily share code among iOS, iPadOS, and macOS using SwiftUI and the new lifecycle APIs. The project structure encourages sharing code across all platforms, while creating special custom experiences for each platform where it makes sense for your app.

Improved auto-indentation

Swift code is auto-formatted as you type to make common Swift code patterns look much better, including special support for the “guard” command.

StoreKit testing

New tools in Xcode let you create StoreKit files that describe the various subscription and in-app purchase products your app can offer, and create test scenarios to make sure everything works great for your customers — all locally testable on your Mac.

Get started.

Download Xcode 12 and use these resources to build apps for all Apple platforms.