Changelog – WCAG 2

5 May 2026

• In WCAG 2 Overview: Updated the WCAG 2.0, 2.1, 2.2 section to clarify that the standard at a dated URL does not change and how WCAG 2 documents support backward compatibility.
• In WCAG 2 Documents:
  • Updated the WCAG 2 standard section to clarify that the supporting materials are not normative
  • Renamed the “Old Diagram” section into “WCAG 2 documents diagram” and explained that the diagram is referenced in WCAG 2.0.
• In WCAG 2 FAQ:
  • Changed the structure of the FAQ
  • Added:
    • When a new version of WCAG 2 is published, does it change the previous version?
    • Do the supporting documents change WCAG 2 requirements and conformance?
    • Does WCAG 2 cover the accessibility needs of people with cognitive and learning disabilities?
  • Renamed:
    • “Where should I start?” into Where should I start learning about WCAG 2?
    • “What about WCAG 3.0? What about “Silver”?” into What about WCAG 3? and updated the answer
    • “How Can I Get Updates?” into How can I get notified of updates? and updated the answer
    • Renamed “Can I meet WCAG 2 with JavaScript and other technologies?” into Do the techniques ensure accessibility in different technologies?
  • Updated What are the different WCAG 2 documents?
  • Removed guidance about linking to the latest or specific versions of WCAG 2.2 under What was updated in WCAG 2.2 in December 2024?
  • Removed question “Does W3C plan to send WCAG 2.1 or WCAG 2.2 to ISO for endorsement?”

20 October 2025

• In WCAG 2 Overview:
  • Changed the WCAG 2 is ISO/IEC 40500 section with new heading and text
  • Changed “most recent” to “latest” in the WCAG 2.0, 2.1, 2.2 section: “W3C encourages you to use the latest version of WCAG.”
• In WCAG 2 FAQ: deleted question “Is ISO/IEC 40500 the same as WCAG 2.0?”