So FCP 7 is out. There are "100" new features kinda listed here. A more comprehensive list is here.
While most are LONG overdue and common sense I think some people will have issues with the new iChat Theater support because that means that producers can now virtually sit over your shoulder. Good in many instances but bad in some if you ask me.
Also, Apple has begun to unleash a large list of Release and Troubleshooting links, you can find a good list of them here.
Apple's actual support page is here.