Service Pack 1 for SharePoint 2013 has been released . This includes all previous bug fixes released in the CUs. It also enables the ability for folks to use Windows Server 2012 R2. In a previous post , I explained how to slipstream a service pack into a SharePoint build. Although the process does work for SP1 and SharePoint 2013, IT WILL PUT YOU IN AN UNSUPPORTED STATE . If you want to install SP2013 on Windows Server 2012 R2, you will have to wait for us to build the bits with SP1 included. Due to a package change in March 2013, slipstreaming work work. For more FAQs on Service pack 1, check out Stefan's blog .
UPDATE: The prebuilt package with SP1 has been released.