Raising Forest and Domain level with RODC

We have an AD forest with 3 Server 2008R2 DCs and a dozen Server 2008 Read Only DCs at remote offices. The forest and Functional level are still at 2003. I looked everywhere and could not get a definite answer to this. Can we raise the functional level to 2008R2 or only 2008. I know all full DCs have to be at 2008R2 for that forest and domain functional level but do RODCs count also?
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Jeff GloverSr. Systems AdministratorAsked:
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Will SzymkowskiSenior Solution ArchitectCommented:
Rasing the Functional Level should only be done when ALL of the DC's are at the same level. However rasing the functional level only affects the R/W DC's but the configuration still gets pushed to the RODC's. Make sure that the RODC's are upgraded as well before perfoming the Functional Level Raise.

Will.
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Windows Server 2008

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