The Web Applications Working Group has published a W3C Recommendation of XML Digital Signatures for Widgets. This document defines a profile of the XML Signature Syntax and Processing specification to allow a widget package to be digitally signed. Authors and distributors can digitally sign a widget as a mechanism to ensure continuity of authorship and distributorship. A user agent, or other validation system, can use a digital signature to verify the data integrity of the files within a widget package and to confirm the signing key(s). Learn more about the Rich Web Client Activity.

The Cascading Style Sheets (CSS) Working Group has published a Working Draft of CSS Overflow Module Level 3. This module contains the features of CSS relating to new mechanisms of overflow handling in visual media (e.g., screen or paper). In interactive media, it describes features that allow the overflow from a fixed size container to be handled by pagination (displaying one page at a time). It also describes features, applying to all visual media, that allow the contents of an element to be spread across multiple fragments, allowing the contents to flow across multiple regions or to have different styles for different fragments. Learn more about the Style Activity.

The Efficient XML Interchange Working Group invites implementation of the Candidate Recommendation of Efficient XML Interchange (EXI) Profile. This document describes a profile of the EXI 1.0 specification for devices with limited memory capacities. Learn more about the Extensible Markup Language (XML) Activity.

The W3C Multimodal Working Group has published a Proposed Recommendation of Emotion Markup Language (EmotionML) 1.0. As the web is becoming ubiquitous, interactive, and multimodal, technology needs to deal increasingly with human factors, including emotions. The specification of Emotion Markup Language 1.0 aims to strike a balance between practical applicability and scientific well-foundedness. The language is conceived as a "plug-in" language suitable for use in three different areas: (1) manual annotation of data; (2) automatic recognition of emotion-related states from user behavior; and (3) generation of emotion-related system behavior. Comments are welcome through 14 May. Learn more about the Multimodal Interaction Activity.

The HTML Working Group has published a Working Draft of Media Source Extensions. This specification extends HTMLMediaElement to allow JavaScript to generate media streams for playback. Allowing JavaScript to generate streams facilitates a variety of use cases like adaptive streaming and time shifting live streams. Learn more about the HTML Activity.