Last Revision:
Version 1.1, 2009-06-03
Updated to latest Mac OS X v10.6 API, and updated Xcode project and Interface Builder file formats.
(Full Revision History)
Build Requirements:
Xcode 3.2 and later, Mac OS X v10.6 and later
Runtime Requirements:
Mac OS X v10.6 and later

This example shows two versions of a single application: the original version of the application, in ZipBrowserBefore, and the polished version, in ZipBrowserAfter. ZipBrowser is a simple document-based application used for perusing the contents of a zip archive without having to unarchive it. The modifications between ZipBrowserBefore and ZipBrowserAfter fall into six categories: 64-bit readiness, performance and responsiveness, security, localization and internationalization, usability, and accessibility.