What should I expect from someone who has just been released from prison?

My older brother is being released on parole at the end of this month after serving 11 years and 3 months of a 15-year sentence. I’m 19 now, so I was very young when he went to prison and don’t have many memories of him. He’ll be living with our parents and me after his release, and to be honest, I’m feeling a bit anxious about it.