This page is an archive of changes to the knowledge base made in 2020. For the latest changes to the site, refer to the site what's new page.

Changes are listed from most recent to oldest.

May 25, 2020 — EPUB Validation

A new section describing how to validate EPUB files for accessibility is now available. This section covers EPUBCheck, Ace by DAISY and the Ace SMART tools.

May 1, 2020 — Hidden content

A new page detailing various methods for hiding content using HTML, CSS an ARIA is now available. The page also explores the use of scripting and progressive enhancement to hide content in a more accessible manner when it must be hidden.

April 23, 2020 — Improved readability

The default font size and line spacing are now increased to improve the overall readability of the site.

April 20, 2020 — Bibliographies

A new page that details common accessibility issues with bibliographies is now available.

April 17, 2020 — Text to speech

A set of pages covering text-to-speech features available in EPUB has been restored and updated from the old IDPF guidelines. Support for these features remains poor, but this fact is now more prominently noted.

April 17, 2020 — Indexes

A new page that details common accessibility issues with indexes is now available.

April 17, 2020 — Expanded coverage of accessibility metadata

The schema.org accessibility metadata properties are now detailed on their own separate pages. In addition, each page now provides a detailed explanation of the values that the property accepts.

February 28, 2020 — Glossary

A glossary of technical terms used in the knowledge base is now available. A link to the glossary is available at the top of each page. A future update will look at linking terms from where they are used to their definitions.

January 22, 2020 — DPUB-ARIA roles

A new section that details the Digital Publishing WAI-ARIA 1.0 module is now available. Each role is explained in detail on its own page.

January 13, 2020 — ARIA landmarks

A new section that details the proper use of ARIA landmarks is now available.