Yes, they are cumulative. 

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> On Jan 4, 2014, at 8:28 AM, "John Matteson" <[email protected]> wrote:
> 
> Are the rollup Updates for Exchange 2010 cumulative in their packaging?
>  
> I have an organization that is at basic SP2 patch level, do I need to install 
> all 8 RU’s individually? (The company isn’t ready to go to SP3 because of all 
> the upgrades necessary to the ancillary programs, application servers not to 
> mention the AD schema extention.)
>  
> Thanks.

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