iTunes Connect now offers exciting new features and enhancements. The iTunes Connect Developer Guide (version 6.0) provides details about these features and how you can take advantage of them, including:
Using the new Version Release Control to choose when your new app version goes live on the App Store;
Delivering binaries using Application Loader;
New states for your app including Prepare for Upload, Pending Developer Release, and Processing for App Store;
UI Enhancements that indicate when you can edit your app information;
Game Center functionality for the setup of Achievements and Leaderboard Categories for sandbox testing purposes.