This constraint
               was important to preserve its nature as a dot-release of WCAG 2. Comparison with WCAG 2.1 WCAG 2.2 was initiated with the goal to continue the work of WCAG 2.1: Improving accessibility
               guidance for three major groups: users with cognitive or learning disabilities, users
               with low vision, and users with disabilities on mobile devices. Many ways to meet
               these needs were proposed and evaluated, and a set of these were refined by the Working
               Group. Structural requirements inherited from WCAG 2.0, clarity and impact of proposals,
               and timeline led to the final set of success criteria included in this version. The
               Working Group considers that WCAG 2.2 incrementally advances web content accessibility
               guidance for all these areas, but underscores that not all user needs are met by these
               guidelines.