On April 15, 2015, Netflix renewed Orange Is the New Black for a fourth season, which was released on June 17, 2016, as confirmed on January 17, 2016. An official trailer was released on May 10, 2016.
These are confirmed spoilers.
- It has been confirmed that Ruby Rose is unsure if she is going to return for Season Four, she has not been on set for the beginning of filming, but "with Jenji Kohan literally anything could happen 
- On April 28, 2015, Lea DeLaria and Jackie Cruz were confirmed to be promoted to series regulars for the fourth season.
- Caitlyn Jenner will not be joining the cast. 
- Other new characters will be recurring roles played by Brad William Henke, Mike Houston, and Kelly Karbacz. 
- Joe Caputo is going to have some major problems, due to previously sending Sophia Burset to SHU last season. 
- Litchfield Penitentiary's newest obstacle will be an overpopulation. 
- Nicky Nichols will be coming back. 
- Lori Petty will be resuming her role as Lolly Whitehill.
- Rosal Colón will be joining the cast as part of the Spanish Harlem.