EPUB 3.1

Matt Garrish edited this page Dec 23, 2015 · 3 revisions


The EPUB 3.1 revision is the first major revision of EPUB 3 standard. This revision to the EPUB core specifications will focus on consolidation, simplification, and dependency updates, as well as addition of a select set of new features.


The EPUB 3.1 revision is operating under a charter granted by the IDPF membership.



Work on the EPUB 3.1 revision is now underway. No public drafts have yet been produced.

Note: the first face-to-face meeting of the working group will be held in New York City on October 8-9, 2015.

Future Milestones

A first draft specification is expected in January 2016.

See the work plan for a complete list of milestones.

Adoption Readiness Roadmap

An adoption readiness roadmap will be published after the profile has reached Proposed Specification status.




Teleconference calls are held weekly during periods of active development. See the call logistics for how to join the calls (you must be member of the working group).

See the meeting minutes for the latest developments.

Face-to-Face Meetings

  • New York City, USA - October 8-9, 2015 - Announcement [Agenda coming soon]



  • Markus Gylling, International Digital Publishing Forum (IDPF), Co-chair
  • Tzviya Siegman, Wiley, Co-chair
  • Garth Conboy, Google, Co-vice-chair
  • Brady Duga, Google, Co-vice-chair

Working Group

  • TBD


Anyone who belongs to a member organization of the IDPF may join the EPUB Working Group. For information on joining the IDPF, please refer to idpf.org.



Please direct general inquiries about the working group, such as how to join, to Markus Gylling (markus@idpf.org).

For general questions about EPUB, such as what it is, how to create content or how to solve validation errors, please use the IDPF forums.

Reporting Issues

The working group's preferred method for reporting bugs in the specification is the github issue tracker.

IDPF members may also raise issues on the EPUB working group's mailing list. Please use the prefix "[EPUB31]" at the start of your email subject line.

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