The   WebAssembly Working Group   has published three First Public Working Drafts: WebAssembly Core Specification – Version 2.0  describes version 2.0 of the core WebAssembly standard, a safe, portable, low-level code format designed for efficient execution and compact representation. WebAssembly JavaScript Interface – Version 2.0  provides an explicit JavaScript API for interacting with WebAssembly. WebAssembly Web API – Version 2.0  describes the integration of WebAssembly with the broader web platform. The WebAssembly Working Group maintains  a list of proposals finished since the last Recommendation  and monitors the progress of  “in-flight” proposals .

  We are able today to confirm that W3C’s annual conference, the Technical Plenary and Advisory Committee meeting known as “TPAC” will be held as a  hybrid meeting  on 12-16 September 2022. The main in-person hub will be at the Sheraton Vancouver Wall Centre in Canada and we are also planning to have a hub in China to provide an in-person gathering place to support a minimum number of sessions. Our main goal for this meeting is to ensure the safety of our onsite attendees and make sure that all the participants, whether remote or in-person, have a fruitful and valuable experience. The usual group meetings and breakout sessions will take place as well as other type of sessions. We expect registration to open early July. We are in the process of optimizing the many aspects of the whole event in order to accommodate the hybrid format, and so will share in the coming weeks details on the agenda, the hotel rooms booking, the registration fees and the health rules.

  The   Immersive Web Working Group   invites implementations of   WebXR Device API . This specification describes support for accessing virtual reality (VR) and augmented reality (AR) devices, including sensors and head-mounted displays, on the Web. Comments are welcome as  GitHub issues  by  28 April 2022 .

The  Web Performance Working Group  published the  Preload  specification as a Discontinued Draft. The content is now integrated in the  HTML living standard . Publication as a Discontinued Draft implies that this document is no longer intended to advance or to be maintained. It is inappropriate to cite this document as other than abandoned work.

  The   Media Working Group   has published a First Public Working Draft of   Autoplay Policy Detection . This specification provides web developers the ability to detect if automatically starting the playback of a media file is allowed in different situations. The Working Group welcomes comments via the  GitHub repository issues .

  W3C is pleased to announce a  report  from the  W3C/SMPTE Workshop on Professional Media Production on the Web , held online in October/November 2021. This report contains a brief summary, collects highlights from the live sessions, links to the presentation videos, and details next steps. The workshop connected the web platform and the professional media production communities and explored evolutions of the web platform to address professional media production requirements.  24 workshop talks  were published in October 2021,  about 40 issues  were discussed online, and  3 live sessions  were held mid-November 2021 that convened more than 75 experts to exchange on specific media production needs for the web platform. The main outcomes are that: The web platform  already provides  building blocks to enable core media production scenarios. These building blocks are not powerful enough to create full-fledged experiences on clien...

  The  Web Fonts Working Group  has proposed corrections to the W3C Recommendation of  WOFF File Format 2.0 . Based on experience with WOFF 1.0, which is widely deployed, this specification was developed to provide improved compression and thus lower use of network bandwidth, while still allowing fast decompression even on mobile devices. This is achieved by combining a content-aware preprocessing step and improved entropy coding, compared to the Flate compression used in WOFF 1.0.