Microsoft has released Microsoft SQL Server 2012 Service Pack 1
Microsoft SQL Server 2012 service packs are cumulative updates and upgrade all editions and service levels of SQL Server 2012 to SP1. This service pack contains SQL Server 2012 Cumulative Update 1 (CU1) and Cumulative Update 2 (CU2).Microsoft SQL Server 2012 Service Pack 1 (SP1)
This download site contains the following packages and service patches for the Microsoft SQL Server 2012 SP1 release:
Microsoft SQL Server 2012 SP1 Update - this package contains the Microsoft SQL Server 2012 Service Pack 1 update to be applied to existing SQL Server 2012 installations.
Microsoft SQL Server 2012 SP1 Slipstream- This package provides the capability to perform new SQL Server 2012 instance installations (or SQL Server 2008/SQL Server 2008 R2 Upgrades) culminating with Service Pack 1 pre-installed. The slipstream installation package consists of a compressed self-extracting .exe and a ‘.box’ payload file that contains the original SQL Server 2012 release along with Service Pack 1. The .exe file can be directly executed, or utilized from the command prompt just as SQL Server 2012 Setup.exe would be (See Install SQL Server 2012 from the Command Prompt).
Note: SQL Server 2012 Express with SP1 (slipstream) packages may be obtained from the Microsoft SQL Server 2012 SP1 Express packages from the download page