Hi - last year when USPS changed their internals on Jan 2, 2011 - it knocked my website for a loop. I needed to hire a developer to fix it. I just received notice yesterday that they are changing things again come Jan 22, 2012. The email claims "backward compatibility" - does anyone know this to be true? If not - what do I need to do to insure the transition goes smoothly? I know sometimes patches are released. Thanks so much! :D