Hi chris733,
>with a 2008R2 WSUS Server ver 3.2.7600.626
Maybe you make a mistake when writing the version, is it 3.2.7600.226 or 262.
Anyway, if it is Windows server 2008R2 with WSUS 3.0 SP2 to windows 2012R2, then is it supported.
Please read the following articles to learn detailed information about WSUS migration:
https://technet.microsoft.com/en-us/library/hh852339(v=ws.11).aspx
Best Regards,
Anne
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