"This page provides a summary of Web Content Accessibility Guidelines WCAG 2.0; however, it is paraphrased and it is not a definitive version. Please see the following key resources for learning and using WCAG 2.0":
The WCAG WG received a lot of criticism (read To Hell with WCAG 2 for details) after publishing a Last Call Working Draft of WCAG 2.0 in April 2006, and appears to have listened to much of the feedback from the accessibility community.