I’m always trying to find out what the latest build, cumulative update, hot-fix is available for SQL Server. Unfortunately the SQL Server TechCenter page never seems to stay up to date on what the latest Cumulative Update is. There are however support pages that do stay up to date. In the effort to help save you and me from having to search for the latest build, cumulative update, or hot-fix for SQL Server here are the links to the relevant support pages.
SQL Server 2008 SP1 Builds: http://support.microsoft.com/kb/970365/en-us
SQL Server 2008 Builds: http://support.microsoft.com/kb/956909/en-us
SQL Server 2005 SP3 Builds: http://support.microsoft.com/kb/960598
SQL Server 2005 SP2 Builds: http://support.microsoft.com/kb/937137
I don’t have any links for anything prior to 2005 SP2, if you’re not on SP2 though yet you really should be, it was a great service pack.
SQL Server 2000 SP4 Builds: http://support.microsoft.com/kb/894905