HTML Purifier 2.0.0 released!:
„HTML Purifier is a standards-compliant HTML filter written in PHP. Because it uses whitelists and a comprehensive knowledge of the HTML specification, it is bullet-proof against XSS, fixes malformed input rather than reject it, and is open and extensible. The 2.0.0 release lets users customize HTML Purifier’s tag sets easier than ever before.“
(Via Zend Developer Zone.)