WCAG 2.0
WCAG 2.0 was published as a W3C Recommendation on 11 December 2008. The lengthy consultation process prior to this encouraged participation in editing (and responding to the hundreds of comments) by the Working Group, with diversity assured by inclusion of accessibility experts and members of the disability community.
The Web Accessibility Initiative is also working on guidance for migrating from WCAG 1.0 to WCAG 2.0. A comparison of WCAG 1.0 checkpoints and WCAG 2.0 success criteria is already available.
WCAG 2.0 uses the same three levels of conformance as WCAG 1.0, but has redefined them. The WCAG working group maintains an extensive list of web accessibility techniques and common failure cases for WCAG 2.0.
In October 2012, WCAG 2.0 was also accepted by the International Standards Organization as an ISO International Standard, ISO/IEC 40500:2012.
Read more about this topic: Web Content Accessibility Guidelines