- Accept (lists of) source packages as well as binary packages - Accept (lists of) package names, and retrieve changelogs from get-changelog.cgi or similar (when it works). In order for this to really work in apt mode, we need for apt to implement wishlist bug #80123. - Use dpkg-parsechangelog once it's fixed to accept piped/gzip input (bug #80142). This is not yet feasible because of bug #95579: dpkg-parsechangelog loses information. - Multi-level sort: upload urgency, package priority, package name, what else? - Make better use of python-apt control file parsing tar extraction - What should be done in the situation where the installed version is newer than the seen version? Currently, the seen version is used, but it might make more sense to use the installed version.