Keeping track of changes in unstable

If you want to use unstable you should install apt-listchanges then you can received what’s changed in the latest upgrade like : fontconfig (2.2.0-2) unstable; urgency=low

* The "Society For Creative Anachronism Seizes Control Of Russia"
release.
* debian/control:
- Recommend ttf-bitstream-vera, since it is the default fallback font
  now.  Plus it does look pretty nice.  (Closes: #190675).
- Suggest: ttf-freefont, my favorite font.

From : http://lists.debian.org/debian-gtk-gnome/2003/debian-gtk-gnome-200305/msg00082.html