Occasionally an error if found or a suggestion made after I have released an edition of the notebook. Below is a list of edits by date and edition so that you can update your personal notebook if you have already copied the shared one.
7/19/2016 - Added SE2 stamp sets BACK into the shared notebook. These retire on 8/31, so they are still live on 8/1.
9/3/2016 - Removed A1170, Z3212, W2034 & S1608