What is the best way to get updated to NEW minor releases?

For example, I updated my clients to 12.1.6 MP2 and then MP3 comes out. But, I am not aware so I don't think to update.

Currently, unless I go to FileConnect and manually put in my serial # and check for versions, I have no idea when a new minor release comes out. Does Symantec have any system to notify resellers (and/or clients) when minor releases of EE and SBE come out? Or, is there a way to automate updating like signatures (but hopefully with a rollback)?

Steve