One of my letters was originally written almost two full years ago. The author wanted to write it while I was still fresh in his mind, and I don't argue that. He emailed it to me at the time and I have it saved, just in case. My question is... when the apps open up next month, and I have him submit the letter, should the time stamp be changed to a recent date? The content of the letter is the same, (the author is the post-doc in the lab I worked at), but should the letter be addressed with a recent date?