“ The purpose of the OASIS DITA Technical Committee (TC) is to define and maintain the Darwin Information Typing Architecture (DITA) and to promote the use of the architecture for creating standard information types and domain-specific markup vocabularies. ”
DITA 1.0 is the formalization of the DITA DTDs and Schemas contributed by IBM to OASIS in 2004.
The goal of development through the 1.x series of releases is to add function while maintaining backwards compatibility with previous 1.x releases. The DITA TC has collected and prioritized a number of requirements based on known shortcomings, user requests, and relationship with other standards and industry trends.
Starting with DITA 1.1, backwards-compatible updates will be released peridically.
Backwards-compatible bug fixes will be released from time to time as Candidate Releases keyed to just-previous approved standards. The last such release was DITA 1.0.1 in the fall of 2005.