About iMac Software Update 1.3 (Leopard)
The all-new, all-in-one iMac packs a complete, high-performance computer into a beautifully thin design. Available in 20- and 24-inch widescreen models, it includes built-in wireless, Mac OS X, and the new iLife ’08. So within minutes of opening the box, you’ll be doing everything from sharing photos to creating movies to building websites.

Learn more about the iMac.

What’s New in this Version
This update provides important bug fixes and is recommended for 20-inch and 24-inch iMac models with 2.0, 2.4, or 2.8GHz processors.

For further information on this Update, please visit this website.