Apple today released Xcode 4.3 [Mac App Store], making a number of improvements to the software. Among the notable changes, Xcode is now offered directly as an app. It had previously been offered as an installer package, and the move simplifies the installation and update process.
What's New in Version 4.3
Xcode is now distributed as an application, rather than as an installer. This change enables Xcode to be updated directly from the Mac App Store.
- Includes SDKs for Mac OS X 10.7 Lion and iOS 5
- New code signing workflow supports signing OS X apps with Developer ID
- Adds installation of command-line tools to the Downloads preference pane
- Open Developer Tool menu launches Instruments, File Merge, and other tools
- ARC migration tool converts both retain/release and garbage collected code
- Additional bug fixes and stability improvements
Xcode is a free download, but users must be registered members of Apple's iOS or Mac Developer Program in order to submit apps created with Xcode to the respective App Stores.