Hi there,
Thanks for writing in! X includes WAI-ARIA roles through all of our templates, ensuring your site conforms to the latest accessibility standards set forth by the W3C.
Content updates are often not accessible to users with disabilities, especially screen reader users and users who cannot use a mouse or other pointing device. WAI-ARIA allows web pages (or portions of pages) to declare themselves as applications rather than as static documents, by adding role, property, and state information to dynamic web applications.
Hope that helps!