The latest version of the iTunes Connect Developer Guide (version 5.5) is available for download. Some of the updates you’ll find in the newest version of the Guide include:

• iPad screenshots, icon and delivery requirements as well as details on a new status called Missing Screenshot;
• Details on how to enable your app for Game Center and set up your Leaderboard to test using iPhone SDK 4 beta;
• Interval pricing details to help you learn how to schedule price tier changes in advance for your apps and in app purchases;
• Information on the Over the Air download limit;
• Recommended app name character count for optimal display on desktop and device App Stores.

You’ll find the iTunes Connect Developer Guide available for download on the homepage of iTunes Connect.