[pacman-dev] is newer than messages

What is the purpose of the messages "is newer then", from pacman -Su? Can't they please be removed in the normal case? Is there anyone who need them? They look like debug messages to me. $ sudo pacman -Su :: Starting full system upgrade... warning: attr: local (2.4.39-2.1) is newer than core (2.4.39-2) warning: kdebase: local (3.5.8.20080105-1) is newer than extra (3.5.8-3) warning: kdelibs: local (3.5.8.20080105-2) is newer than extra (3.5.8-4) warning: kernel26: ignoring package upgrade (2.6.23.14-1 => 2.6.24-2) warning: lirc: local (0.8.3-0.20080113) is newer than testing (0.8.2-10) warning: lirc-utils: local (0.8.3-0.20080113.1) is newer than extra (0.8.2-1) warning: tellico: local (1.3-1) is newer than community (1.2.14-1)