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Mac OS X Leopard - ARCAism

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• Project snapshots, which will save the state of a project and allow you to return to that<br />

state at a later date<br />

• Tools to assist you with refactoring your code to improve readability and maintainability<br />

• An improved document reader and a research assistant window for easy access to reference<br />

documentation<br />

• Built-in support for Ruby and Python<br />

• A new GUI to browse SCM (source code management) repositories from Xcode<br />

(supporting CVS, Subversion, and Perforce repositories)<br />

Figure A-16. Xcode 3 with various windows open<br />

Interface Builder<br />

The <strong>Leopard</strong> version of Interface Builder (Figure A-17) supports a new interface as well as the<br />

ability to add new behaviors to your applications.<br />

Instruments<br />

APPENDIX A WHAT’S NEW WITH LEOPARD 539<br />

Along with the new Xcode tools, Apple includes a new application, Instruments (Figure A-18).<br />

Instruments is a tool that utilizes the newly included DTrace framework to allow developers an<br />

inside look at the execution of an application or the system itself. This allows the developer to<br />

see potential issues within the application that would otherwise be difficult to identify.

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