The EPUB 3 Working Group is pleased to announce that the third Editor's Draft of EPUB 3.1 is now available for community review. This draft is feature complete, and all open issues in the tracker have been addressed. The Working Group is looking to publish the first formal Public Draft of the EPUB 3.1 specification by early September, and meanwhile encourages any community feedback on the work to date.
For more information about changes in the new Editors Draft, please refer to the EPUB 3.1 Changes from 3.0.1 document. Those affiliated with IDPF member organizations are encouraged to join the IDPF EPUB Working Group email list to participate directly in the development process; feedback can also be provided via the IDPF GitHub issue tracker.