This session will highlight the changes in the OpenA11y evaluation library 2.0 used in AInspector for Firefox 3.0 extension to implement the new features of the W3C Accessible Rich Internet Application (ARIA) 1.2 and the W3C ARIA in HTML specifications for evaluating web accessibility. The OpenA11y library has been rewritten to support WCAG 2.1 and WCAG 2.2 requirements and fix bugs related to accessible name calculation. Come learn about updates and new rules in the evaluation library and some new features in AInspector for Firefox.