WCAG 2.1 WCAG 2.1 was finalized in 2018, though much digital accessibility legislation worldwide still references WCAG 2.0. Examples of legislation that already target WCAG 2.1 AA are ADA Title II, the EU’s WAD and EAA, and Manitoba’s AMA. WCAG 2.1 is made up of all of the existing WCAG 2.0, plus 17 additional success criteria (5 more Level A, 7 more Level AA, and 5 more Level AAA). The new success criteria mainly address mobile and touch devices and other evolutions of technology since 2008 when WCAG 2.0 was released. WCAG 2.1 also addresses cognitive challenges better than WCAG 2.0 did.