Welker's wedding happened early 2012, so it happened likely happened during the 2011 season. Syncs up perfect with Rex Ryan being a guest at Nick Saban's Spring Coaching Clinic. They playbook itself could be spotted in an ESPN special sitting on Saban's desk as he was talking, so he definitely was given one.
It's too far back to really matter presently, I doubt they kept the terminology the same once Smith was tipped off. He probably thought more of someone handing over his playbook to another coach, but you probably shouldn't be giving that up to mere acquaintance.