To give a status update here: - Gtk2 has been updated to 2.18.1 and was built against libcups from extra. Testing shouldn't be a requirement anymore, as the remaining libraries moved to core already. - Architectures are mainly identical now, only gtkmm is ahead on x86_64 I've done some investigation about the rest of the todo list: - KDE doesn't support polkit in the current shape. Fedora compiles KDE without policykit to get rid of PolicyKit 0.9x. I think we should do the same - Poppler remained ABI stable in its bindings, the only package that I could find broken with poppler 0.12 is texlive-bin, which needs a patch to actually compile I hope to get some time for this the upcoming weekend. If anyone has different views on KDE and PolicyKit, please let me know.