I just installed LMDE respin a couple of days ago. I applied all updates when I logged in. I did this before I read this on the official annoucement page.
"In the meantime, it is recommended not to apply updates coming from “Security” and “Multimedia”, as they might not be compatible with the packages in Update Pack 2."
So have I screwed up my system by installing those few updates that were availible directly after reinstall? I really do not wish to reinstall again, hopefully if they are pointed to "latest" when UP3 becomes availible it will be fine.