Mintupdate-debian is a project mainly written in PYTHON and SHELL, it's free.
Update Manager for the rolling LMDE
aptitude changelog should get nice parsing, a la aptitude-gtk.
Changelogs for some packages display better than others; this appears to be due to loose format policy.
From what I can tell, clickable hyperlinks (e.g., closes:# --> bugs.debian.org) are a an ancient request. Not sure if this is resolved in gtk3.
solution?