Hello,
I am installing Exchange 2016 on a 2012R2 Server and must upgrade the forest level to 2012R2 for it to install. I am concerned in doing this as we still have a 2008 Server as one of the DC's.
FSMO role is currently on Server 2012R2.
We have 3 Domain Controllers: 2 x 2012R2 and one 2008R2 (Exchange installed).
The 2008 Server has Exchange 2010.
Will raising the Forest Level affect the 2008 Server? Or it just doesnt matter?
Thanks.