Just a quick question. We had updated our Exchange 2010 Servers with DAGs to SP3 before. Now when reading through the upgrade to Exchange 2013 procedure, we saw something like
"If you are planning to utilise DAG, then you
should install the following hot-fix (2550886) on your Exchange 2010 servers
before deploying SP3."
But we did not apply the hotfix before applying SP3. So will things break if we install it now ? Now we have 2010 SP3 CU3 installed.