Name Change

Hello I am a new basset hound owner. Some people I know were re-homing him and knew I was looking for a dog after my blue heeler passed at a young age a few months ago. I have had him for almost two weeks now, and I couldn’t have asked for a better dog. I am thinking of changing his name, but he is 2 and a half so I don’t know if its a good idea. One thing I read said that it might be good to change his name because his first home was in a domestic violence situation, and the article said he could associate his current name with bad memories. I have always changed my dogs names after adopting them, but I have never had a basset hound so I was just wondering how attached to his name he could be and how difficult it would be to change it.