12 January 2021 The  EPUB 3 Working Group  has published four First Public Working Drafts today for EPUB 3.3. This technology defines a distribution and interchange format for digital publications and documents. The EPUB format provides a means of representing, packaging, and encoding structured and semantically enhanced Web content — including HTML, CSS, SVG, and other resources — for distribution in a single-file container. The specification represents the third major revision and, in particular, a revision of the  EPUB 3.2 document  published by the EPUB 3 Community Group. This new version of the specification is now on a W3C Recommendation Track. The four documents published by the Working Group are: The  EPUB 3.3  specification defines the authoring requirements for EPUB Publications and represents the third major revision of the standard. The  EPUB 3.3 Reading Systems  specification defines the conformance requirements for EPUB 3...

  The W3C Advisory Committee has  elected  the following people to the W3C Technical Architecture Group (TAG): Amy Guy (Digital Bazaar), Sangwhan Moon (W3C Invited Expert), Theresa O’Connor (Apple, Inc.) and Lea Verou (W3C Invited Expert). They join co-Chair Tim Berners-Lee and continuing participants, Daniel Appelquist (Samsung Electronics; co-Chair), Rossen Atanassov (Microsoft Corporation), Hadley Beeman (W3C Invited Expert), Kenneth Rohde Christiansen (Intel Corporation) and Peter Linss (W3C Invited Expert; co-Chair). Yves Lafon continues as staff contact. Many thanks for contributions to the TAG to the departing participants, David Baron (W3C Invited Expert) and Alice Boxhall (Google), whose terms end at the end of this month. The TAG is a special group within the W3C, chartered under the  W3C Process Document , with stewardship of the Web architecture. The mission of the TAG is to build consensus around principles of Web architecture and to interpret and clarif...

  The   Publishing Working Group   has published two Proposed Recommendations: Publication Manifest  defines a general manifest format for expressing information about a digital publication. It uses  schema.org  metadata augmented to include various structural properties about publications, serialized in JSON-LD, to enable interoperability between publishing formats while accommodating variances in the information that needs to be expressed. Audiobooks  describes the requirements for the creation of audiobooks, using a profile of the Publication Manifest specification. Comments on the Proposed Recommendations are welcome through  03:59 UTC/GMT on 2020-10-31  (23:59 Boston time on 2020-10-30).

  W3C has published a new version of its  Roadmap of Web Applications on Mobile , an overview of the various technologies developed in W3C that increase the capabilities of Web applications, and how they apply more specifically to the mobile context. The September 2020 snapshot refreshes the list of technologies under incubation in Community Groups or on the standardization track in Working Groups. See the  Change history since November 2019  for details. Standardization proposals that have emerged since last publication include: various proposals focused on privacy (such as the Storage Access API, the Trust Token API, Private Click Measurement, TURTLEDOVE, or the isLoggedIn proposal), described in  Security and Privacy ; exploration of standards needed for so-called MiniApps, see  Application Lifecycle ; main thread scheduling APIs to improve scheduling primitives, see  Performance and Tuning ; Web Monetization to enable continuous and small payments ...

  The  15 September 2020 W3C Process Document  and  15 September 2020 W3C Patent Policy  take effect today. At a time when the Web is increasingly essential with the world going more and more virtual, these updates increase the Web Consortium’s responsiveness and strengthen standardization activities by adding a continuous standard development mode and earlier Royalty-Free protection for implementers, among other changes. Please read more in our  press release . Of the changes to the W3C Process Document, the most anticipated ones offer a real boost in helping the Web serve the community: streamlined community review and review for integrity (Horizontal review to ensure accessibility, internationalization, privacy, and security); flexibility for multiple work modes, including stability of referenced versions and reflection of the current status in the technical reports list; a continuous development mode that enables specifications to reflect rapidly develo...

W3C has republished a Candidate Recommendation of  Time Ontology in OWL . OWL-Time is an OWL-2 DL ontology of temporal concepts, for describing the temporal properties of resources in the world or described in Web pages. The ontology provides a vocabulary for expressing facts about topological (ordering) relations among instants and intervals, together with information about durations, and about temporal position including date-time information. Time positions and durations may be expressed using either the conventional (Gregorian) calendar and clock, or using another temporal reference system such as Unix-time, geologic time, or different calendars.

The  Timed Text Working Group  has published a Candidate Recommendation of  TTML Profiles for Internet Media Subtitles and Captions 1.2 . This specification defines two profiles of [ ttml2 ]: a text-only profile and an image-only profile. These profiles are intended to be used across subtitle and caption delivery applications worldwide, thereby simplifying interoperability, consistent rendering and conversion to other subtitling and captioning formats. This specification improves on [ ttml-imsc1.1 ] by supporting contemporary practices, while retaining compatibility with [ttml-imsc1.1] documents. It provides one new feature, which permits external font files to be referenced explicitly. One existing feature has been clarified, and no features have been deprecated in this version.