Who is being released from prisons and when? How are priorities determined?

https://www.nytimes.com/reuters/2020/04/28/us/28reuters-health-coronavirus-usa-prisons.html?utm_source=The+Marshall+Project+Newsletter&utm_campaign=d13cab7845-EMAIL_CAMPAIGN_2020_04_29_11_45&utm_medium=email&utm_term=0_5e02cdad9d-d13cab7845-174493933