Right on schedule, Microsoft has released SQL Server 2008 SP2 Cumulative Update 9. This is Build 10.00.4330.00, and it has seven fixes listed in the public fix list. Remember, this Cumulative Update is only for SQL Server 2008 SP2. It will not work on other Service Pack levels of SQL Server 2008, and it will not work on SQL Server 2008 R2 (which is a newer major release of SQL Server).
Also, keep in mind that Cumulative Updates are, as the name implies, cumulative. That means you could go from SQL Server 2008 SP2 RTM, directly to SQL Server 2008 SP2 CU9 without having to install any of the earlier Cumulative Update packages. If you are still on the SQL Server 2008 SP2 branch, I think you should be planning on moving to the SP3 branch sometime this year, before Microsoft retires the SP2 branch.