What’s New in Xcode
Xcode is the complete developer toolset used to create applications for Mac, iPhone, and iPad. The Xcode development environment bundles the Instruments analysis tool, iOS Simulator, and OS frameworks in the form of iOS SDKs and OS X SDKs.
Xcode 5.0.1 Update
“Xcode 5.0.1” adds support for development on OS X Mavericks and other feature additions.
Enables development on OS X 10.8.4 or later, and OS X 10.9
Includes SDKs for OS X 10.8 and OS X 10.9, and iOS 7.0.3 SDK
Support for continuous integration bots, hosted on OS X Server
Support for OS X Server hosted repositories
Able to build iOS 6 (32-bit) and iOS 7 (32-bit and 64-bit) binaries with a single build target
Xcode 5.0.2 addresses reported developer issues and Apple qualification testing. See Xcode Release Notes for more information.
Highlights of Xcode 5
Xcode 5 is the current release of the Apple developer tools. It builds on the design of Xcode 4, focusing on features and enhancements that improve your ability to adopt core platform features, design new interfaces, and deliver high-quality applications. To review the feature highlights present in Xcode 5.0, see “New Features in Xcode 5.”
Xcode 5.0.1 requires a Mac running OS X 10.8.4 or later, and OS X 10.9. It includes SDKs for OS X 10.8 and OS X 10.9, and iOS 7.0.3 SDK. To develop apps targeting prior versions of OS X or iOS, see “About SDKs and the iOS Simulator.”
You obtain Xcode 5 from the Mac App Store, it is a free download that installs directly into the Applications folder. By default, Xcode downloads developer documentation in the background for offline reading, and automatically downloads documentation updates as well. This behavior can be changed after installation via the Downloads preferences pane.
The iOS and Mac Developer Programs provide access to the App Store, additional support and documentation, and provisioning resources to enable testing and deployment on an iPhone, iPod Touch, or iPad device. For more information visit:
For discussions about any Apple developer software, including prerelease products, visit the Apple Developer Forums at http://devforums.apple.com/.
For the latest security information visit http://support.apple.com/kb/HT1222.
For more detailed information please see the complete Xcode release notes, available from the Help menu.
About SDKs and the iOS Simulator
A software development kit (SDK) is a collection of frameworks (libraries, headers, and resources) that represent the API for a specific iOS or OS X version. Most of the functionality your app gets from an SDK is actually provided by the host operating system, which makes the right Base SDK and OS Deployment Target settings critical for app compatibility. Xcode automates this configuration for you, building with the latest SDK and targeting the latest OS by default.
If your app doesn’t require the latest OS features, you can configure it to run on a previous version of iOS or OS X version via the OS Deployment Target option in the Xcode Project settings. If your project was created in an older version of Xcode, you can let Xcode update your project. See “Project Modernization” for details on this feature.
For iOS, Xcode automatically switches between the iOS Simulator SDK and the device SDK, depending on where you intend to run your app. You don’t need to select these settings manually.
When you open a project, Xcode evaluates it to see whether there are any settings that should be updated. This feature provides an easy way to make sure your projects conform to the latest SDKs and best practices.
Open the issue navigator to see whether anything in your project needs to be updated. You can also select the project in the project navigator and choose Editor > Validate Settings.
If the issue navigator lists modernization issues, click the issue to see a dialog that explains the updates that should be made and lets you perform any or all of them.
After you have clicked Perform Changes, whether you choose to make all the changes or not, Xcode does not show the warning again. To rerun the check, select your project in the project navigator and choose Validate Settings from the Editor menu.
Deprecation and Removal Notice
New Features in Xcode by Release
Chapter articles are listed by major revision. Minor update release information is appended in the chapter for the major revision.
Xcode 5 adds support for development on iOS v7.0 and OS X v10.9.
Relevant Chapter: “New Features in Xcode 5”
Xcode 4.6 adds support for development on iOS v6.1.
Relevant Chapter: “New Features in Xcode 4.6”
Xcode 4.5 adds support for development on iOS v6.0.
Relevant Chapter: “New Features in Xcode 4.5”
Xcode 4.4 adds support for new Objective-C language features and supports development on OS X v10.8 Mountain Lion.
Relevant Chapter: “New Features in Xcode 4.4”
Xcode 4.3 adds enhancements to Xcode installation, improves operations and workflow, and support development for iOS v5.0.
Relevant Chapter: “New Features in Xcode 4.3”
Xcode 4.2 adds enhancements to the features and workflow of Xcode 4.1 to support development for iOS v5.0.
Relevant Chapter: “New Features in Xcode 4.2”
Xcode 4.1 adds enhancements to the features and workflow of Xcode 4.0 and, when running on OS X Lion, implements user interface features standard in OS X Lion such as full-screen windows.
Relevant Chapter: “New Features in Xcode 4.1 ”
To learn more about Xcode 5, see Xcode Overview.
For short tutorials that walk you through some of the most commonly used features of Xcode, see either:
Start Developing iOS Apps Today
These two documents provide the perfect starting point for iOS and Mac app development. Follow either road map to learn how to get and use Xcode to create your first app. You will learn how to use Xcode to test and debug your source code, analyze to improve your app’s performance, perform source control operations, archive your app, and submit your app to the App Store.
To learn more about the tasks and workflow required to develop and distribute OS X or iOS apps, see App Distribution Guide.