I like the way Debian gives various changelogs . For instance for most packages it has -changelog.gz - This is the upstream changelog giving details of the differences between any two versions or at times even point versions. Nowadays usually distilled from $ git shortlog or whatever equivalent command in whatever vcs is being used. changelog.Debian.gz - This talks about changes/improvements done to a package. Some of the common changes include changes of the packaging team, changes to the standards versions, Updating build-depends, any patches which fixes some issue in Debian which has not been accepted by Debian, any changes to either debian/rules or debian/control which might be notable and need mentioning. While I'm pretty happy with the way Debian organizes this thing, was this idea of having separate changelogs to lessen confusion born at Debian's or some other distribution. If so, where and when this idea was born, implemented before Debian ? 
Was debian the first distribution to come and have the idea of changelog.gz and changelog.debian.gz?
debian;package management;history;packaging