What you call a person who hates change?

== == A person who hates/dislikes change is a "neophobe", the opposite of a "neophile" who is easily excited by novelty. Sentence: A bunch of childish neophobes have created a Facebook group objecting to minor layout revisions and new features. If you're talking about someone who hates TECHNOLOGICAL change specifically, you might be looking for the Word "luddite" or "neo-luddite" (since Luddites were a type of people from 19th Century England).