After reading the wikis I can’t get clever…
I have few .pacnew that I don’t realy know how to integrate them, per exemple :
In mkinitcpio.conf.pacnew there are now ( ) instead of " " for the options, do I have just to put the same option between the ().
I normaly just copy the differences from the .conf file to the .pacnew and rename then conf > .conf.old, .pacnew > .conf.
Thanks for your advices.