Microsoft SQL Server 2008 R2 November Community Technology Preview (CTP)
November 12, 2009
Microsoft SQL Server 2008 R2 August Community Technology Preview (CTP)
June 30, 2009
Note: RTM stands for release to market edition, which is the first supported version of SQL Server 2008 R2, and SP stands for service pack. All SQL Server service packs and hotfixes are cumulative, meaning that each new service pack and hotfixes contains all the fixes that are included with previous service packs, hotfixes and new fixes issues.
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