Here is my situation...
I've got three databases formatted as SQL Sever 2008 databases running on SQL Server 2008 R2 installs. We are looking at upgrading two of these databases to R2 or outright upgrade the databases and servers to 2012.
Currently we have transactional replication working between an application database that is SQL Server 2008 (not R2) and another db that is also SQL Server 2008 (not R2). Are there any potential problems that can occur with the replication process if we upgrade the subscriber database to 2008 R2 or 2012?
Thanks for any help.