The result of this work is expected
               to be a more substantial restructuring of web accessibility guidance than would be
               realistic for dot-releases of WCAG 2. The work follows a research-focused, user-centered
               design methodology to produce the most effective and flexible outcome, including the
               roles of content authoring, user agent support, and authoring tool support. This is
               a multi-year effort, so WCAG 2.2 is needed as an interim measure to provide updated
               web accessibility guidance to reflect changes on the web since the publication of
               WCAG 2.0. The Working Group might also develop additional interim versions, continuing
               with WCAG 2.2, on a similar short timeline to provide additional support while the
               major version is completed. 1.