I have not installed yet but it should have all the features....and I believe there will be no feature additions until RTM released...
If you're talking about auditing by DDL yes, it on the RCO release. This is from the mssql 2008 Product Information Overview about new features for this release: Create and manage auditing via DDL, while simplifying compliance by providing more comprehensive data auditing. This enables organizations to answer common questions, such as, "What data was retrieved?"
SQL Server 2008 RC0: http://www.microsoft.com/downloads/...43-03F7-4ED5-8142-24A4C024CA05&displaylang=en SQL Server 2008 RC0 Feature Pack: http://www.microsoft.com/downloads/...AD-E2DF-43E9-9CD8-C06320520B40&displaylang=en
This RC0 is feature ready which means whatever CTP features that were referred/provided earlier are included. Best is to install and test for your new projects and if any bugs you find post it on http://connect.microsoft.com and I can confirm that RC0 is great as all of my tech-ed demos were presented using this version with no issues.