by Don Day, Chair, OASIS DITA Technical Committee

Scope and compatibility statement

DITA 1.0 is a stable release; for the 1.x extent of updates to that specification, new features and bug fixes are to be backwards-compatible for the current DITA user base.

DITA 2.0 will be the first opportunity to introduce incompatible design changes deemed necessary for the future enhancement of the architecture.

OASIS DITA 1.0 (June 2005):

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 maintain 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, compatible updates will be released peridically while gauging the right time to begin work on 2.0, which by definition is the first planned opportunity to enable critical new requirements that necessarily break backwards compatibility. Don't panic! This roadmap probably represents several years of effort just to get each release approved, followed by long periods of exploitation of introduced features in tools and other infrastructure.

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.

OASIS DITA 1.1 (planned for mid-year 2007):

DITA 1.1 has two major themes:

The updates for the Book deliverables theme include:

The updates for Data extensibility theme include:

Note: the changes for data require a change to the structure of the DTDs and schemas. The changes are described in the New_design_patterns_for_1.1 document.



Decision pending:

Prototype DTDs:

OASIS DITA 1.2 (2008):

Documentation (Spec updates):


Elements/content models:


Additional Book-related:



This release will consist of any items prioritized out of the DITA 1.2 scope of work, as well as any new requirements or design directions not yet identified. Unless major issues arise, this is likely to close out the 1.x series of releases in this roadmap.


The DITA 2.0 major version represents an opportunity for major architectural revisions to the DITA standard.

Roadmap_for_DITA_development (last edited 2009-08-12 18:02:47 by localhost)