Read the message, it simply tells you that these packages you have installed are at a newer version than the packages available on your update mirror. There can be various reasons for that, some more legit than others (seriously? the Stable branch once again ahead of Testing? FOR REAL?), but generally don’t worry about, and if you want to downgrade these packages for specific reason, then use the proper switch for Pacman command (you’ll have to look for it, not giving it to you, so you will at least read a little about Pacman in the process).