I ran into a problem after upgrade (well it told me already on the upgrade screen). When finished you can get the error “warning: config file /etc/pacman.conf, line 34: directive ‘TotalDownload’ in section ‘options’ not recognized.”
I resolved this by comparing the pacman.conf with pacman.conf.pacnew, adding every single uncommented line from the conf to the pacnew file and removing the line with the TotalDownloads in it.
I noticed quite a few mabox specific entries which I needed to write back in the pacnew file.
After this I removed the pacman.conf file and renamed the pacman.conf.pacnew to pacman.conf and works as it should do.