HTML_CSS : The Definitive Guide

Introduced a new error handling system: PEAR_ErrorStack was replaced by a simple way to plug in any error handling system you might want (default used PEAR_Error object)

HTML_CSS::apiVersion() returns now a string rather than a float; compatible with php.version_compare().

Added the ability to parse multiple data sources (filename, string) at once with HTML_CSS::parseData()

Added the ability to identify if HTML_CSS API output returns an error with HTML_CSS::isError()

Introduces package xml 2.0 and drop support of package xml 1.0

Unified API arguments for all group functions

Klaus Guenther (first package leader) became inactive.