The Web Content Accessibility Guidelines Working Group today published updates of two Notes that accompany WCAG 2.0: Techniques for WCAG 2.0 and Understanding WCAG 2.0. (This is not an update to WCAG 2.0, which is a stable document.) To learn more about these updates and about contributing to future updates, see the New and Improved WCAG 2.0 Techniques blog post. Read about the Web Accessibility Initiative (WAI).

The SPARQL Working Group has published updated drafts of the following SPARQL 1.1 documents. SPARQL is a set of specfications related to querying a web of linked data. Learn more about the Semantic Web.

• SPARQL 1.1 Query adds support for aggregates, subqueries, projected expressions, and negation to the SPARQL query language.
• SPARQL 1.1 Update defines an update language for RDF graphs.
• SPARQL 1.1 Service Description defines a vocabulary and discovery mechanism for describing the capabilities of a SPARQL endpoint.
• SPARQL 1.1 Uniform HTTP Protocol for Managing RDF Graphs describes the use of the HTTP protocol for managing named RDF graphs on an HTTP server.
• SPARQL 1.1 Entailment Regimes defines conditions under which SPARQL queries can be used with entailment regimes such as RDF, RDF Schema, OWL, or RIF.

The Cascading Style Sheets (CSS) Working Group invites implementation of the Candidate Recommendation of CSS Style Attributes. Markup languages such as HTML and SVG provide a style attribute on most elements, to hold inline style information that applies to those elements. One of the possible style sheet languages is CSS. This draft describes the syntax and interpretation of the CSS fragment that can be used in such style attributes. Learn more about the Style Activity.