Paramount Home Entertainment has announced that it will bring Dexter: The Complete Fourth Season to Blu-ray on August 17. There is no information on special features at the moment. A pack containing the first four seasons of this Showtime series will also be released at the same time.
This was expected, August has been the original release month for all the other seasons (DVD for S1&2, DVD/Blu for S3). I definitely can't wait, I love the show but only get to watch it when it comes out for purchase. I've only seen the first episode of this season so I've been patiently waiting!