This is a page from the Cascading Style Sheets Working Group Blog. Some other places to find information are the “current work” page, the www-style mailing list, and the Future of CSS syndicator.
Do you want to know how the CSS WG works? Fantasai has written about:csswg, An Inside View of the CSS Working Group at W3C.
The CSS Namespaces module has been published as a Last Call Working Draft. The module defines the @namespace rule and makes the namespace features of Selectors possible to use in CSS.