In April of this year the United States Sentencing Commission made a big change that will affect many convicts. They submitted an amendment that reduced the amount of prison time that would be standard for many drug trafficking charges. In July they added that this rule would be able to be imposed retroactively as well as in all future cases brought to sentencing.
What this means is that many convicts currently serving long prison sentences will be able to ask for a reduced sentence as a result of the change to the sentencing guidelines for drug trafficking. This amendment went into effect on the first of this month, making it so that many convicts can file for a reduction of sentence. This will likely result in reduced sentences for thousands of prisoners.