make sure that for a couple of weeks after your move, you don't allow your cat outdoors except with you on a leash. it takes time for your cat to learn the area and to realize that the new home is where they live now and where they should stay. give them time to adjust before allowing them to have adventures.
meet your neighbors! when you do, talk to them about your pets. let them know what they look like and to contact you if they see your pets out and about.
check your new home, yard, and neighborhood for hazards. cat proof what you can and be aware of the hazards 