To go past the official releases you are moving into cooker teritory.
That means that you are a developer/contributor, have a wide knowledge of linux's and are not worried about your computer not working sometimes.
Because the developer/cooker packages may not work on "all" systems.
But if you insist, have a go at this, they have a forum and I have found it to be quite good.
http://www.seerofsouls.com/