Doug,
I've modified the Description.
Besides the package tarball URL, I'm trying to add Changelog (as you did) plus respective URL, signature, sum (if md5 is available, preferred, because it is used in the book), what is available.
Reason is that it took very long at the beginning, to find them, but now, just copy previous ticket and in most cases, change version and Changelog. Sometimes, other URLs beed modification, but I am trying to find either version independent or explicit version, instead of dates and commit number.
For ffmpeg, earlier to, I succeeded in replacing a commit number by a version numver for the Changelog.
I'm explaining so that I hope you will not be upset for this intrusion in your ticket.
Thanks for your probable understanding.