Please, use DDS's Download page to get the latest version and all other versions of DDS.
DDS version has a form of MAJOR.MINOR(.PATCH), where:
MAJOR - the major number is increased when there are significant jumps in functionality.
MINOR - the minor number is incremented when only minor features or significant fixes have been added.
PATCH - represents a number of commits (patches) to a current major.minor pair.
The DDS's version scheme reflects the fact that DDS is both a production system and a research project. DDS uses odd minor version numbers to denote development releases and even minor version numbers to denote stable releases.