The latest version of the DDI specification, the DDI 3.0 Candidate Release Version 3, is now available. Until publication of DDI 3.0 in April 2008, some new versions of Candidate Release Version 3 may become available. They will be labeled as Candidate Release Version 3 but with different dates. A final version of the Candidate Release is scheduled for April 3, 2008, with official publication of DDI 3.0 scheduled for April 28, 2008